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18,752 results on '"Schmidt, R."'

2. Microlensing of strongly lensed quasars

Author

Vernardos, G., Sluse, D., Pooley, D., Schmidt, R. W., Millon, M., Weisenbach, L., Motta, V., Anguita, T., Saha, P., O'Dowd, M., Peel, A., and Schechter, P. L.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

Strong gravitational lensing of quasars has the potential to unlock the poorly understood physics of these fascinating objects, as well as serve as a probe of the lensing mass distribution and of cosmological parameters. In particular, gravitational microlensing by compact bodies in the lensing galaxy can enable mapping of quasar structure to $\lt 10^{-6}$ arcsec scales. Some of this potential has been realized over the past few decades, however the upcoming era of large sky surveys promises to bring this to full fruition. Here we review the theoretical framework of this field, describe the prominent current methods for parameter inference from quasar microlensing data across different observing modalities, and discuss the constraints so far derived on the geometry and physics of quasar inner structure. We also review the application of strong lensing and microlensing to constraining the granularity of the lens potential, i.e. the contribution of the baryonic and dark matter components, and the local mass distribution in the lens, i.e. the stellar mass function. Finally, we discuss the future of the field, including the new possibilities that will be opened by the next generation of large surveys and by new analysis methods now being developed., Comment: To be submitted to Space Science Reviews, Topical Collection "Strong Gravitational Lensing", eds. J. Wambsganss et al

Published
2023

3. Atomic photoexcitation as a tool for probing purity of twisted light modes

Author

Schmidt, R. P., Ramakrishna, S., Peshkov, A. A., Huntemann, N., Peik, E., Fritzsche, S., and Surzhykov, A.

Subjects
Physics - Atomic Physics, Quantum Physics
Abstract

The twisted light modes used in modern atomic physics experiments can be contaminated by small admixtures of plane wave radiation. Although these admixtures hardly reveal themselves in the beam intensity profile, they may seriously affect the outcome of high precision spectroscopy measurements. In the present study we propose a method for diagnosing such a plane wave contamination, which is based on the analysis of the magnetic sublevel population of atoms or ions interacting with the "twisted + plane wave" radiation. In order to theoretically investigate the sublevel populations, we solve the Liouville-von Neumann equation for the time evolution of atomic density matrix. The proposed method is illustrated for the electric dipole $5s \, {}^{2}\mathrm{S}_{1/2} \, - \, 5p \, {}^{2}\mathrm{P}_{3/2}$ transition in Rb induced by (linearly, radially, or azimuthally polarized) vortex light with just a small contamination. We find that even tiny admixtures of plane wave radiation can lead to remarkable variations in the populations of the ground-state magnetic sublevels. This opens up new opportunities for diagnostics of twisted light in atomic spectroscopy experiments., Comment: 12 pages, 11 figures

Published
2023

4. Maternal stress and early childhood BMI among US children from the Environmental influences on Child Health Outcomes (ECHO) program

Author

Alshawabkeh, AN, Teitelbaum, SL, Stroustrup, A, Deoni, S, Gern, J, Bacharier, L, O’Connor, G, Kattan, M, Wood, R, Rivera-Spoljaric, K, Weiss, S, Permanente, Kaiser, Zeiger, R, Schmidt, R, Simhan, H, Schantz, S, Woodruff, T, and Bosquet-Enlow, M

Subjects
Paediatrics, Biomedical and Clinical Sciences, Behavioral and Social Science, Pediatric, Basic Behavioral and Social Science, Clinical Research, Aetiology, 2.2 Factors relating to the physical environment, 2.3 Psychological, social and economic factors, Generic health relevance, Good Health and Well Being, Infant, Humans, Child, Child, Preschool, United States, Body Mass Index, Prospective Studies, Risk Factors, Birth Weight, Outcome Assessment, Health Care, program collaborators for Environmental influences on Child Health Outcomes, Paediatrics and Reproductive Medicine, Public Health and Health Services, Pediatrics
Abstract

BackgroundWe aimed to understand the association between maternal stress in the first year of life and childhood body mass index (BMI) from 2 to 4 years of age in a large, prospective United States-based consortium of cohorts.MethodsWe used data from the Environmental influences on Child Health Outcomes program. The main exposure was maternal stress in the first year of life measured with the Perceived Stress Scale (PSS). The main outcome was the first childhood BMI percentile after age 2 until age 4 years. We used an adjusted linear mixed effects model to examine associations between BMI and PSS quartile.ResultsThe mean BMI percentile in children was 59.8 (SD 30) measured at 3.0 years (SD 1) on average. In both crude models and models adjusted for maternal BMI, age, race, ethnicity, infant birthweight, and health insurance status, no linear associations were observed between maternal stress and child BMI.ConclusionsAmong 1694 maternal-infant dyads, we found no statistically significant relationships between maternal perceived stress in the first year of life and child BMI after 2 through 4 years.ImpactAlthough existing literature suggests relationships between parental stress and childhood BMI, we found no linear associations between maternal stress in the first year of life and childhood BMI at 2-4 years of age among participants in ECHO cohorts. Higher maternal stress was significantly associated with Hispanic ethnicity, Black race, and public health insurance. Our analysis of a large, nationally representative sample challenges assumptions that maternal stress in the first year of life, as measured by a widely used scale, is associated with offspring BMI.

Published
2023

5. Accelerator Magnet Development Based on COMB Technology with STAR Wires

Author

Kashikhin, V. V., Cohan, S., Lombardo, V., Turrioni, D., Mai, N., Chavda, A. K., Sambangi, U., Korupolu, S., Peram, J., Anil, A., Goel, C., Sandra, J. Sai, Yerraguravagari, V., Schmidt, R., Selvamanickam, V., Majkic, G., Galstyan, E., and Selvamanickam, K.

Subjects
Physics - Accelerator Physics
Abstract

This paper reports progress in the development of COMB magnet technology with STAR wires. A two-layer dipole magnet with 60 mm clear bore has been recently fabricated and tested in liquid nitrogen. The purpose of the test was to determine what kind of critical current degradation occurs in the process of winding the STAR wire into the COMB structure., Comment: CEC/ICMC23

Published
2023

6. Decision-Tree Models Indicative of Microvascular Invasion on MRI Predict Survival in Patients with Hepatocellular Carcinoma Following Tumor Ablation

Author

Schmidt R, Hamm CA, Rueger C, Xu H, He Y, Gottwald LA, Gebauer B, and Savic LJ

Subjects
cancer imaging, hepatocellular carcinoma, microvascular invasion, magnetic resonance tomography, predictive imaging biomarkers, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Robin Schmidt,1,2 Charlie Alexander Hamm,1,3 Christopher Rueger,1 Han Xu,1 Yubei He,1,2 Luzie Alexandra Gottwald,4 Bernhard Gebauer,1 Lynn Jeanette Savic1– 3 1Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Radiology, Berlin, 13353, Germany; 2Experimental Clinical Research Center (ECRC) at Charité - Universitätsmedizin Berlin and Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, 13125, Germany; 3Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Berlin, 10117, Germany; 4Vivantes Humboldt-Klinikum, Berlin, 13509, GermanyCorrespondence: Lynn Jeanette Savic, Charité Universitätsmedizin Berlin, Campus Virchow Klinikum, Klinik für Radiologie, Augustenburger Platz 1, Berlin, D-13353, Germany, Email lynn-jeanette.savic@charite.dePurpose: Histological microvascular invasion (MVI) is a risk factor for poor survival and early recurrence in hepatocellular carcinoma (HCC) after surgery. Its prognostic value in the setting of locoregional therapies (LRT), where no tissue samples are obtained, remains unknown. This study aims to establish CT-derived indices indicative of MVI on liver MRI with superior soft tissue contrast and evaluate their association with patient survival after ablation via interstitial brachytherapy (iBT) versus iBT combined with prior conventional transarterial chemoembolization (cTACE).Patients and Methods: Ninety-five consecutive patients, who underwent ablation via iBT alone (n = 47) or combined with cTACE (n = 48), were retrospectively included between 01/2016 and 12/2017. All patients received contrast-enhanced MRI prior to LRT. Overall (OS), progression-free survival (PFS), and time-to-progression (TTP) were assessed. Decision-tree models to determine Radiogenomic Venous Invasion (RVI) and Two-Trait Predictor of Venous Invasion (TTPVI) on baseline MRI were established, validated on an external test set (TCGA-LIHC), and applied in the study cohorts to investigate their prognostic value for patient survival. Statistics included Fisher’s exact and t-test, Kaplan–Meier and cox-regression analysis, area under the receiver operating characteristic curve (AUC-ROC) and Pearson’s correlation.Results: OS, PFS, and TTP were similar in both treatment groups. In the external dataset, RVI showed low sensitivity but relatively high specificity (AUC-ROC = 0.53), and TTPVI high sensitivity but only low specificity (AUC-ROC = 0.61) for histological MVI. In patients following iBT alone, positive RVI and TTPVI traits were associated with poorer OS (RVI: p < 0.01; TTPVI: p = 0.08), PFS (p = 0.04; p = 0.04), and TTP (p = 0.14; p = 0.03), respectively. However, when patients with combined cTACE and iBT were stratified by RVI or TTPVI, no differences in OS (p = 0.75; p = 0.55), PFS (p = 0.70; p = 0.43), or TTP (p = 0.33; p = 0.27) were observed.Conclusion: The study underscores the role of non-invasive imaging biomarkers indicative of MVI to identify patients, who would potentially benefit from embolotherapy via cTACE prior to ablation rather than ablation alone.Keywords: cancer imaging, hepatocellular carcinoma, microvascular invasion, magnetic resonance tomography, predictive imaging biomarkers

Published
2024

7. Eichenprozessionsspinner in Mecklenburg Vorpommern

Author

Schmidt, R., Vietinghoff, Joachim, and Kuhnke, K.-H.

Subjects
Agriculture, Botany, QK1-989
Abstract

Die EPS- Bekämpfung 2011 mit NeemProtect aus der Luft konnte die Zunahme der Befallsstärke im Bekämpfungsgebiet und eine weitere Befallsausbreitung nicht entscheidend verhindern. Der Wirkstoff zeigte im Kleinversuch zwar eine 100%ige Wirkung, versagte aber ebenso wie Dipel ES im Großversuch. Dagegen gelang sowohl mit NeemProtect als auch mit Coragen und Steinernema eine vollständige Bekämpfung der Raupen Im Kleinversuch. Für die Entwicklung einer wirksamen Bekämpfungsmethode für die Praxis sind die Ursachen für die geringe Freilandwirksamkeit von NeemProtect zu klären. Zukünftig müssen mehrere wirksame Bekämpfungsmethoden gegen den Eichenprozessionsspinner auf öffentlich zugänglichen Flächen zur Verfügung stehen.

Published
2013
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11. Association of maternal fish consumption and ω-3 supplement use during pregnancy with child autism-related outcomes: results from a cohort consortium analysis

Author

Smith, PB, Newby, KL, Jacobson, LP, Catellier, DJ, Gershon, R, Cella, D, Alshawabkeh, AN, Cordero, J, Meeker, J, Aschner, J, Teitelbaum, SL, Stroustrup, A, Mansbach, JM, Spergel, JM, Samuels-Kalow, ME, Stevenson, MD, Bauer, CS, Koinis Mitchell, D, Deoni, S, D’Sa, V, Duarte, CS, Monk, C, Posner, J, Canino, G, Seroogy, C, Bendixsen, C, Hertz-Picciotto, I, Keenan, K, Karr, C, Tylavsky, F, Mason, A, Zhao, Q, Sathyanarayana, S, LeWinn, KZ, Lester, B, Carter, B, Pastyrnak, S, Neal, C, Smith, L, Helderman, J, Weiss, ST, Litonjua, A, O’Connor, G, Zeiger, R, Bacharier, L, Volk, H, Ozonoff, S, Schmidt, R, Simhan, H, Kerver, JM, Barone, C, Fussman, C, Paneth, N, Elliott, M, Ruden, D, Porucznik, C, Giardino, A, Innocenti, M, Silver, R, Conradt, E, Bosquet-Enlow, M, Huddleston, K, Nguyen, R, Trasande, L, Swan, S, Lyall, Kristen, Westlake, Matt, Musci, Rashelle J, Gachigi, Kennedy, Barrett, Emily S, Bastain, Theresa M, Bush, Nicole R, Buss, Claudia, Camargo, Carlos A, Jr., Croen, Lisa A, Dabelea, Dana, Dunlop, Anne L, Elliott, Amy J, Ferrara, Assiamira, Ghassabian, Akhgar, Gern, James E, Hare, Marion E, Hertz-Picciotto, Irva, Hipwell, Alison E, Hockett, Christine W, Karagas, Margaret R, Lugo-Candelas, Claudia, O’Connor, Thomas G, Schmidt, Rebecca J, Stanford, Joseph B, Straughen, Jennifer K, Shuster, Coral L, Wright, Robert O, Wright, Rosalind J, Zhao, Qi, and Oken, Emily

Published
2024
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12. Study of dust-induced beam losses in the cryogenic arcs of the CERN Large Hadron Collider

Author

Lechner, A., Bélanger, P., Efthymiopoulos, I., Grob, L., Lindstrom, B., Schmidt, R., and Wollmann, D.

Subjects
Physics - Accelerator Physics
Abstract

The interaction of dust particles with the LHC proton beams accounts for a major fraction of irregular beam loss events observed in LHC physics operation. The events cease after a few beam revolutions because of the expulsion of dust particles from the beam once they become ionized in the transverse beam tails. Despite the transient nature of these events, the resulting beam losses can trigger beam aborts or provoke quenches of superconducting magnets. In this paper, we study the characteristics of beam-dust particle interactions in the cryogenic arcs by reconstructing key observables like nuclear collision rates, loss durations and integral losses per event. The study is based on events recorded during 6.5 TeV operation with stored beam intensities of up to $\sim 3\times 10{^{14}}$ protons per beam. We show that inelastic collision rates can reach almost $10^{12}$ collisions per second, resulting in a loss of up to $\sim 1.6\times 10^{8}$ protons per event. We demonstrate that the experimental distributions and their dependence on beam parameters can be described quantitatively by a previously developed simulation model if dust particles are assumed to be attracted by the beam. The latter finding is consistent with recent time profile studies and yields further evidence that dust particles carry a negative charge when entering the beam. We also develop different hypotheses regarding the absence of higher-loss events in the measurements, although such events are theoretically not excluded by the simulation model. The results provide grounds for predicting dust-induced beam losses in presence of higher-intensity beams in future runs of the High-Luminosity LHC., Comment: 19 pages, 14 figures, to be submitted to Phys. Rev. Accel. Beams

Published
2021
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13. Dynamics of atoms within atoms

Author

Tiwari, S., Engel, F., Wagner, M., Schmidt, R., Meinert, F., and Wüster, S.

Subjects
Quantum Physics, Condensed Matter - Quantum Gases, Physics - Atomic Physics
Abstract

Recent experiments with Bose-Einstein condensates have entered a regime in which thousands of ground-state condensate atoms fill the Rydberg-electron orbit. After the excitation of a single atom into a highly excited Rydberg state, scattering off the Rydberg electron sets ground-state atoms into motion, such that one can study the quantum-many-body dynamics of atoms moving within the Rydberg atom. Here we study this many-body dynamics using Gross-Pitaevskii and truncated Wigner theory. Our simulations focus in particular on the scenario of multiple sequential Rydberg excitations on the same Rubidium condensate which has become the standard tool to observe quantum impurity dynamics in Rydberg experiments. We investigate to what extent such experiments can be sensitive to details in the electron-atom interaction potential, such as the rapid radial modulation of the Rydberg molecular potential, or p-wave shape resonance. We demonstrate that both effects are crucial for the initial condensate response within the Rydberg orbit, but become less relevant for the density waves emerging outside the Rydberg excitation region at later times. Finally we explore the local dynamics of condensate heating. We find that it provides only minor corrections to the mean-field dynamics., Comment: 27 pages and 10 figures

Published
2021
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14. Adult calcaneal osteitis: incidence, etiology, diagnostics and therapy

Author

Tiemann, A. H., Hofmann, G. O., Steen, M., and Schmidt, R.

Subjects
calcaneus, osteomyelitis, etiology, incidence, diagnostics, therapy, Surgery, RD1-811
Abstract

Calcaneal osteomyelitis presents a complicated situation. The specific anatomy of the os calcis and its surrounding soft tissues plays an important role in the planning and realization of the procedures needed in order to eradicate the osteomyelitic focus. The calcaneus represents a spongious bone; a fact that supports the developement of an osteomyelitis. It is the strongest bone of the foot and is highly important for the biomechanical features of physiological walking. The surrounding soft tissues are thin and contain various important anatomical structures. These might be damaged during the treatment of the osteomyelitis. In addition the vascularization of the os calcis is delicate and may be compromized during the surgical osteomyelitis treatment. Calcaneus osteomyelitis may be classified based on the routes of infection into exogenous and endogenous forms. Additionally from the clinical point of view acute and chronic forms may be distinguished from an early and a late infection. Exogenous calcaneal osteomyelitis mostly is the result of an infection with S. aureus. The treatment is equal to the therapy in other locations and based on: •Eradication of the bone infection •Sanitation of the soft tissue infection •Reconstruction of bone and soft tissue Especially the preservation and restoration of the soft tissue is important. Thus plastic surgical procedures play an essential role. The main object of treatment is the preservation of a biomechanical functioning foot. This may be impossible due to the local situation. Calcanectomy or even below knee amputation may be needed in those cases.

Published
2012
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16. Birth outcomes in relation to neighborhood food access and individual food insecurity during pregnancy in the Environmental Influences on Child Health Outcomes (ECHO)-wide cohort study

Author

Smith, P.B., Newby, L.K., Jacobson, L.P., Catellier, D.J., Fuselier, G, Gershon, R, Cella, D, Teitelbaum, S.L., Stroustrup, A, Merhar, S, Lampland, A, Reynolds, A, Hudak, M, Pryhuber, G, Moore, P, Washburn, L, Gatzke-Kopp, L, Swingler, M, Laham, F.R., Mansbach, J.M., Wu, S, Spergel, J.M., Celedón, J.C., Puls, H.T., Teach, S.J., Porter, S.C., Waynik, I.Y., Iyer, S.S., Samuels-Kalow, M.E., Thompson, A.D., Stevenson, M.D., Bauer, C.S., Inhofe, N.R., Boos, M, Macias, C.G., Koinis Mitchell, D, Duarte, C.S., Monk, C, Posner, J, Canino, G, Croen, L, Gern, J, Zoratti, E, Seroogy, C, Bendixsen, C, Jackson, D, Bacharier, L, O’Connor, G, Kattan, M, Wood, R, Rivera-Spoljaric, K, Hershey, G, Johnson, C, Bastain, T, Farzan, S, Habre, R, Hertz-Picciotto, I, Hipwell, A, Keenan, K, Karr, C, Tylavsky, F, Mason, A, Zhao, Q, Sathyanarayana, S, Bush, N, LeWinn, K.Z., Carter, B, Pastyrnak, S, Neal, C, Smith, L, Helderman, J, Leve, L, Neiderhiser, J, Weiss, S.T., Litonjua, A, Zeiger, R, McEvoy, C, Tepper, R, Lyall, K, Volk, H, Landa, R, Ozonoff, S, Schmidt, R, Dager, S, Schultz, R, Piven, J, O’Shea, M, Vaidya, R, Obeid, R, Rollins, C, Bear, K, Lenski, M, Singh, R, Msall, M, Frazier, J, Gogcu, S, Montgomery, A, Kuban, K, Douglass, L, Jara, H, Joseph, R, Kerver, J.M., Barone, C, Fussman, C, Paneth, N, Elliott, M, Ruden, D, Herbstman, J, Schantz, S, Woodruff, T, Stanford, J, Porucznik, C, Giardino, A, Wright, R.J., Bosquet-Enlow, M, Huddleston, K, Nguyen, R, Barrett, E, Swan, S, Miller, R, Aris, Izzuddin M, Lin, Pi-I D, Wu, Allison J, Dabelea, Dana, Lester, Barry M, Wright, Rosalind J, Karagas, Margaret R, Kerver, Jean M, Dunlop, Anne L, Joseph, Christine LM, Camargo, Carlos A, Jr., Ganiban, Jody M, Schmidt, Rebecca J, Strakovsky, Rita S, McEvoy, Cindy T, Hipwell, Alison E, O’Shea, Thomas Michael, McCormack, Lacey A, Maldonado, Luis E, Niu, Zhongzheng, Ferrara, Assiamira, Zhu, Yeyi, Chehab, Rana F, Kinsey, Eliza W, Bush, Nicole R, Nguyen, Ruby HN., Carroll, Kecia N, Barrett, Emily S, Lyall, Kristen, Sims-Taylor, Lauren M, Trasande, Leonardo, Biagini, Jocelyn M, Breton, Carrie V, Patti, Marisa A, Coull, Brent, Amutah-Onukagha, Ndidiamaka, Hacker, Michele R, James-Todd, Tamarra, and Oken, Emily

Published
2024
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21. Cascading effects of composts and cover crops on soil chemistry, bacterial communities and the survival of foodborne pathogens.

Author

Devarajan, N, McGarvey, JA, Scow, K, Jones, MS, Lee, S, Samaddar, S, Schmidt, R, Tran, TD, and Karp, DS

Subjects
Animals, Salmonella enterica, Manure, Soil, Fertilizers, Soil Microbiology, Composting, Listeria, Salmonella, biological soil amendment of animal origin, co-management, compost, food safety, healthy soil, manure, organic, soil amendment, co&#8208, management, Prevention, Emerging Infectious Diseases, Digestive Diseases, Infectious Diseases, Foodborne Illness, Infection, Microbiology
Abstract

AimsRecent foodborne disease outbreaks have caused farmers to re-evaluate their practices. In particular, concern that soil amendments could introduce foodborne pathogens onto farms and promote their survival in soils has led farmers to reduce or eliminate the application of animal-based composts. However, organic amendments (such as composts and cover crops) could bolster food safety by increasing soil microbial diversity and activity, which can act as competitors or antagonists and reduce pathogen survival.Methods and resultsLeveraging a study of a 27-year experiment comparing organic and conventional soil management, we evaluate the impacts of composted poultry litter and cover crops on soil chemistry, bacterial communities and survival of Salmonella enterica and Listeria monocytogenes. We found that bacterial community composition strongly affected pathogen survival in soils. Specifically, organic soils managed with cover crops and composts hosted more macronutrients and bacterial communities that were better able to suppress Salmonella and Listeria. For example, after incubating soils for 10 days at 20°C, soils without composts retained fourfold to fivefold more Salmonella compared to compost-amended soils. However, treatment effects dissipated as bacterial communities converged over the growing season.ConclusionsOur results suggest that composts and cover crops may be used to build healthy soils without increasing foodborne pathogen survival.Significance and impact of the studyOur work suggests that animal-based composts do not promote pathogen survival and may even promote bacterial communities that suppress pathogens. Critically, proper composting techniques are known to reduce pathogen populations in biological soil amendments of animal origin, which can reduce the risks of introducing pathogens to farm fields in soil amendments. Thus, animal-based composts and cover crops may be a safe alternative to conventional fertilizers, both because of the known benefits of composts for soil health and because it may be possible to apply amendments in such a way that food-safety risks are mitigated rather than exacerbated.

Published
2021

23. Ionic polaron in a Bose-Einstein condensate

Author

Astrakharchik, G. E., Ardila, L. A. Peña, Schmidt, R., Jachymski, K., and Negretti, A.

Subjects
Condensed Matter - Quantum Gases, Physics - Atomic Physics, Quantum Physics
Abstract

The presence of strong interactions in a many-body quantum system can lead to a variety of exotic effects. Here we show that even in a comparatively simple setup consisting of a charged impurity in a weakly interacting bosonic medium the competition of length scales gives rise to a highly correlated mesoscopic state. Using quantum Monte Carlo simulations, we unravel its vastly different polaronic properties compared to neutral quantum impurities. Moreover, we identify a transition between the regime amenable to conventional perturbative treatment in the limit of weak atom-ion interactions and a many-body bound state with vanishing quasi-particle residue composed of hundreds of atoms. In order to analyze the structure of the corresponding states we examine the atom-ion and atom-atom correlation functions which both show nontrivial properties. Our findings are directly relevant to experiments using hybrid atom-ion setups that have recently attained the ultracold regime., Comment: published version, 10 pages, 5 figures, 1 table

Published
2020
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24. Fast Failures in the LHC and the future High Luminosity LHC*

Author

Lindstrom, B., Bélanger, P., Bortot, L., Denz, R., Mentink, M., Ravaioli, E., Mateos, F. Rodriguez, Schmidt, R., Uythoven, J., Valette, M., Verweij, A., Wiesner, C., Wollmann, D., and Zerlauth, M.

Subjects
Physics - Accelerator Physics
Abstract

An energy of $362\:\text{MJ}$ is stored in each of the two LHC proton beams for nominal beam parameters. This will be further increased to about $700\:\text{MJ}$ in the future High Luminosity LHC (HL-LHC) and uncontrolled beam losses represent a significant hazard for the integrity and safe operation of the machine. In this paper, a number of failure mechanisms that can lead to a fast increase of beam losses are analyzed. Most critical are failures in the magnet protection system, namely the quench heaters and a novel protection system called Coupling-Loss Induced Quench (CLIQ). An important outcome is that magnet protection has to be evaluated for its impact on the beam and designed accordingly. In particular, CLIQ, which is to protect the new HL-LHC triplet magnets, constitutes the fastest known failure in the LHC if triggered spuriously. A schematic change of CLIQ to mitigate the hazard is presented. A loss of the Beam-Beam Kick due to the extraction of one beam is another source of beam losses with a fast onset. A significantly stronger impact is expected in the upcoming LHC Run III and HL-LHC as compared to the current LHC, mainly due to the increased bunch intensity. Its criticality and mitigation methods are discussed. It is shown that symmetric quenches in the superconducting magnets for the final focusing triplet can have a significant impact on the beam on short timescales. The impact on the beam due to failures of the Beam-Beam Compensating Wires as well as coherent excitations by the transverse beam damper are also discussed., Comment: 28 pages, 23 figures. To be published in Physical Review Accelerators and Beams

Published
2020
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25. OGLE-2013-BLG-0911Lb: A Secondary on the Brown-Dwarf Planet Boundary around an M-dwarf

Author

Miyazaki, Shota, Sumi, Takahiro, Bennett, David P., Udalski, Andrzej, Shvartzvald, Yossi, Street, Rachel, Bozza, Valerio, Yee, Jennifer C., Bond, Ian A., Rattenbury, Nicholas, Koshimoto, Naoki, Suzuki, Daisuke, Fukui, Akihiko, Abe, F., Bhattacharya, A., Barry, R., Donachie, M., Fujii, H., Hirao, Y., Itow, Y., Kamei, Y., Kondo, I., Li, M. C. A., Ling, C. H., Matsubara, Y., Matsuo, T., Muraki, Y., Nagakane, M., Ohnishi, K., Ranc, C., Saito, T., Sharan, A., Shibai, H., Suematsu, H., Sullivan, D. J., Tristram, P. J., Yamakawa, T., Yonehara, A., Skowron, J., Poleski, R., Mr'oz, P., Szyma'nski, M. K., Soszy'nski, I., Pietrukowicz, P., KozLowski, S., Ulaczyk, K., Wyrzykowski, L., Friedmann, Matan, Kaspi, Shai, Maoz, Dan, Albrow, M., Christie, G., DePoy, D. L., Gal-Yam, A., Gould, A., Lee, C. -U., Manulis, I., McCormick, J., Natusch, T., Ngan, H., Pogge, R. W., Porritt, I., Tsapras, Y., Bachelet, E., Hundertmark, M. P. G., Dominik, M., Bramich, D. M., Cassan, A., Jaimes, R. Figuera, Horne, K., Schmidt, R., Snodgrass, C., Wambsganss, J., Steele, I. A., Menzies, J., Mao, S., Jorgensen, U. G., Burgdorf, M. J., Ciceri, S., Novati, S. Calchi, D'Ago, G., Evans, D. F., Hinse, T. C., Kains, N., Kerins, E., Korhonen, H., Mancini, L., Popovas, A., Rabus, M., Rahvar, S., Scarpetta, G., Skottfelt, J., Southworth, J., Peixinho, N., and Verma, P.

Subjects
Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - Solar and Stellar Astrophysics
Abstract

We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q~0.03 which differs from that reported in Shvartzvald+2016. The event suffers from the well-known close/wide degeneracy, resulting in two groups of solutions for the projected separation normalized by the Einstein radius of s~0.15 or s~7. The finite source and the parallax observations allow us to measure the lens physical parameters. The lens system is an M-dwarf orbited by a massive Jupiter companion at very close (M_{host}=0.30^{+0.08}_{-0.06} M_{Sun}, M_{comp}=10.1^{+2.9}_{-2.2} M_{Jup}, a_{exp}=0.40^{+0.05}_{-0.04} au) or wide (M_{host}=0.28^{+0.10}_{-0.08} M_{Sun}, M_{comp}=9.9^{+3.8}_{-3.5}M_{Jup}, a_{exp}=18.0^{+3.2}_{-3.2} au) separation. Although the mass ratio is slightly above the planet-brown dwarf (BD) mass-ratio boundary of q=0.03 which is generally used, the median physical mass of the companion is slightly below the planet-BD mass boundary of 13M_{Jup}. It is likely that the formation mechanisms for BDs and planets are different and the objects near the boundaries could have been formed by either mechanism. It is important to probe the distribution of such companions with masses of ~13M_{Jup} in order to statistically constrain the formation theories for both BDs and massive planets. In particular, the microlensing method is able to probe the distribution around low-mass M-dwarfs and even BDs which is challenging for other exoplanet detection methods., Comment: 22 pages, 10 figures, Accepted for publication in The Astronomical Journal

Published
2019
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27. Life expectancy associated with different ages at diagnosis of type 2 diabetes in high-income countries: 23 million person-years of observation

Author

Kaptoge, S, Seshasai, SRK, Sun, L, Walker, M, Bolton, T, Spackman, S, Ataklte, F, Willeit, P, Bell, S, Burgess, S, Pennells, L, Altay, S, Assmann, G, Ben-Shlomo, Y, Best, LG, Björkelund, C, Blazer, DG, Brenner, H, Brunner, EJ, Dagenais, GR, Cooper, JA, Cooper, C, Crespo, CJ, Cushman, M, D'Agostino, RB, Sr, Daimon, M, Daniels, LB, Danker, R, Davidson, KW, de Jongh, RT, Donfrancesco, C, Ducimetiere, P, Elders, PJM, Engström, G, Ford, I, Gallacher, I, Bakker, SJL, Goldbourt, U, de La Cámara, G, Grimsgaard, S, Gudnason, V, Hansson, PO, Imano, H, Jukema, JW, Kabrhel, C, Kauhanen, J, Kavousi, M, Kiechl, S, Knuiman, MW, Kromhout, D, Krumholz, HM, Kuller, LH, Laatikainen, T, Lowler, DA, Meyer, HE, Mukamal, K, Nietert, PJ, Ninomiya, T, Nitsch, D, Nordestgaard, BG, Palmieri, L, Price, JF, Ridker, PM, Sun, Q, Rosengren, A, Roussel, R, Sakurai, M, Salomaa, V, Schöttker, B, Shaw, JE, Strandberg, TE, Sundström, J, Tolonen, H, Tverdal, A, Verschuren, WMM, Völzke, H, Wagenknecht, L, Wallace, RB, Wannamethee, SG, Wareham, NJ, Wassertheil-Smoller, S, Yamagishi, K, Yeap, BB, Harrison, S, Inouye, M, Griffin, S, Butterworth, AS, Wood, AM, Thompson, SG, Sattar, N, Danesh, J, Di Angelantonio, E, Tipping, RW, Russell, S, Johansen, M, Bancks, MP, Mongraw-Chaffin, M, Magliano, D, Barr, ELM, Zimmet, PZ, Whincup, PH, Willeit, J, Leitner, C, Lawlor, DA, Elwood, P, Sutherland, SE, Hunt, KJ, Selmer, RM, Haheim, LL, Ariansen, I, Tybjaer-Hansen, A, Frikkle-Schmidt, R, Langsted, A, Lo Noce, C, Balkau, B, Bonnet, F, Fumeron, F, Pablos, DL, Ferro, CR, Morales, TG, Mclachlan, S, Guralnik, J, Khaw, KT, Holleczek, B, Stocker, H, Nissinen, A, Vartiainen, E, Jousilahti, P, Harald, K, Massaro, JM, Pencina, M, Lyass, A, Susa, S, Oizumi, T, Kayama, T, Chetrit, A, Roth, J, Orenstein, L, Welin, L, Svärdsudd, K, Lissner, L, Hange, D, Mehlig, K, Tilvis, RS, Dennison, E, Westbury, L, Norman, PE, Almeida, OP, Hankey, GJ, Hata, J, Shibata, M, Furuta, Y, Bom, MT, Rutters, F, Muilwijk, M, Kraft, P, Lindstrom, S, Turman, C, Kiyama, M, Kitamura, A, Gerber, Y, Salonen, JT, van Schoor, LN, van Zutphen, EM, Melander, O, Psaty, BM, Blaha, M, de Boer, IH, Kronmal, RA, Grandits, G, Shin, H-C, Albertorio, JR, Gillum, RF, Hu, FB, Humphries, S, Hill- Briggs, F, Vrany, E, Butler, M, Schwartz, JE, Iso, H, Amouyel, P, Arveiler, D, Ferrieres, J, Gansevoort, RT, de Boer, R, Kieneker, L, Trompet, S, Kearney, P, Cantin, B, Després, JP, Lamarche, B, Laughlin, G, McEvoy, L, Aspelund, T, Thorsson, B, Sigurdsson, G, Tilly, M, Ikram, MA, Dorr, M, Schipf, S, Fretts, AM, Umans, JG, Ali, T, Shara, N, Davey-Smith, G, Can, G, Yüksel, H, Özkan, U, Nakagawa, H, Morikawa, Y, Ishizaki, M, Njølstad, I, Wilsgaard, T, Mathiesen, E, Buring, J, Cook, N, Arndt, V, Rothenbacher, D, Manson, J, Tinker, L, Shipley, M, Tabak, AG, Kivimaki, M, Packard, C, Robertson, M, Feskens, E, and Geleijnse, M

Published
2023
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28. Molecular dissociation in few-cycle laser pulses: From attosecond to femtosecond pulse duration

Author

Fiedlschuster, T., Handt, J., Gross, E. K. U., and Schmidt, R.

Subjects
Physics - Atomic Physics
Abstract

The dissociation dynamics of diatomic molecules interacting with (near) optical laser pulses of different duration is investigated by an elaborate discussion of the electric field of the laser and by a direct solution of the time-dependent molecular Schr\"odinger equation. The systematic variation of the pulse duration from the electronic time scale (attoseconds) to the nuclear time scale (femtoseconds) shows that the employed few-cycle laser pulses lead to well-known but quite different dissociation mechanisms. A comparative calculation with a model pulse and an experimentally realized attosecond pulse emphasizes that, and to what extent, a realistic modeling of the electric field is of central importance in the attosecond regime.

Published
2019

29. OGLE-2015-BLG-1649Lb: A gas giant planet around a low-mass dwarf

Author

Nagakane, Masayuki, Lee, Chien-Hsiu, Koshimoto, Naoki, Suzuki, Daisuke, Udalski, Andrzej, Beaulieu, Jean-Philippe, Sumi, Takahiro, Bennett, David, Bond, Ian A., Rattenbury, Nicholas J., Bachelet, Etienne, Dominik, Martin, Abe, Fumio, Barry, Richard, Bhattacharya, Aparna, Donachie, Martin, Fujii, H., Fukui, Akihiko, Hirao, Yuki, Itow, Yoshitaka, Kamei, Y., Kondo, Iona, Li, Man Cheung Alex, Matsubara, Y., Matsuo, Taro, Miyazaki, Shota, Muraki, Yasushi, Ranc, Clément, Shibai, Hiroshi, Suematsu, Haruno, Sullivan, Denis, Tristram, P., Yamakawa, T., Yonehara, A., Mróz, P., Poleski, Radosław, Skowron, Jan, Szymański, M., Soszyński, I., Pietrukowicz, Pawel, Kozłowski, Szymon, Ulaczyk, Krzysztof, Bramich, Dan, Cassan, Arnaud, Jaimes, R., Horne, K., Hundertmark, Markus, Mao, Shude, Menzies, John, Schmidt, R., Snodgrass, Colin, Steele, Iain, Street, Rachel, Tsapras, Yiannis, Wambsganss, Joachim, Jørgensen, Uffe, Bozza, Valerio, Longã, P., Peixinho, Nuno, Skottfelt, Jesper, Southworth, John, Andersen, M. I., Burgdorf, M., D'Ago, Giuseppe, Evans, Daniel, Hinse, Tobias, Korhonen, Heidi, Rabus, Markus, and Rahvar, Sohrab

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

We report the discovery of an exoplanet in microlensing event OGLE-2015-BLG-1649. The planet/host-star mass ratio is $q =7.2 \times 10^{-3}$ and the projected separation normalized by the Einstein radius is $s = 0.9$. The upper limit of the lens flux is obtained from adaptive optics observations by IRCS/Subaru, which excludes the probability of a G-dwarf or more massive host star and helps to put a tighter constraint on the lens mass as well as commenting on the formation scenarios of giant planets orbiting low-mass stars. We conduct a Bayesian analysis including constraints on the lens flux to derive the probability distribution of the physical parameters of the lens system. We thereby find that the masses of the host star and planet are $M_{L} = 0.34 \pm 0.19 M_{\odot}$ and $M_{p} = 2.5^{+1.5}_{-1.4} M_{Jup}$, respectively. The distance to the system is $D_{L} = 4.23^{+1.51}_{-1.64}$kpc. The projected star-planet separation is $a_{\perp} = 2.07^{+0.65}_{-0.77}$AU. The lens-source relative proper motion of the event is quite high, at $\sim 7.1 \, {\rm mas/yr}$. Therefore, we may be able to determine the lens physical parameters uniquely or place much stronger constraints on them by measuring the color-dependent centroid shift and/or the image elongation with additional high resolution imaging already a few years from now., Comment: 24 pages, 5 figures, 3 tables. Accepted for publication in AJ

Published
2019
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30. An analysis of binary microlensing event OGLE-2015-BLG-0060

Author

Tsapras, Y., Cassan, A., Ranc, C., Bachelet, E., Street, R., Udalski, A., Hundertmark, M., Bozza, V., Beaulieu, J. P., Marquette, J. B., Euteneuer, E., team, The RoboNet, Bramich, D. M., Dominik, M., Jaimes, R. Figuera, Horne, K., Mao, S., Menzies, J., Schmidt, R., Snodgrass, C., Steele, I. A., Wambsganss, J., collaboration, The OGLE, Mróz, P., Szymański, M. K., Soszyński, I., Skowron, J., Pietrukowicz, P., Kozłowski, S., Poleski, R., Ulaczyk, K., Pawlak, M., collaboration, The MiNDSTEp, Jørgensen, U. G., Skottfelt, J., Popovas, A., Ciceri, S., Korhonen, H., Kuffmeier, M., Evans, D. F., Peixinho, N., Hinse, T. C., Burgdorf, M. J., Southworth, J., Tronsgaard, R., Kerins, E., Andersen, M. I., Rahvar, S., Wang, Y., Wertz, O., Rabus, M., Novati, S. Calchi, D'Ago, G., Scarpetta, G., Mancini, L., collaboration, The MOA, Abe, F., Asakura, Y., Bennett, D. P., Bhattacharya, A., Donachie, M., Evans, P., Fukui, A., Hirao, Y., Itow, Y., Kawasaki, K., Koshimoto, N., Li, M. C. A., Ling, C. H., Masuda, K., Matsubara, Y., Muraki, Y., Miyazaki, S., Nagakane, M., Ohnishi, K., Rattenbury, N., Saito, To., Sharan, A., Shibai, H., Sullivan, D. J., Sumi, T., Suzuki, D., Tristram, P. J., Yamada, T., and Yonehara, A.

Subjects
Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We present the analysis of stellar binary microlensing event OGLE-2015-BLG-0060 based on observations obtained from 13 different telescopes. Intensive coverage of the anomalous parts of the light curve was achieved by automated follow-up observations from the robotic telescopes of the Las Cumbres Observatory. We show that, for the first time, all main features of an anomalous microlensing event are well covered by follow-up data, allowing us to estimate the physical parameters of the lens. The strong detection of second-order effects in the event light curve necessitates the inclusion of longer-baseline survey data in order to constrain the parallax vector. We find that the event was most likely caused by a stellar binary-lens with masses $M_{\star1} = 0.87 \pm 0.12 M_{\odot}$ and $M_{\star2} = 0.77 \pm 0.11 M_{\odot}$. The distance to the lensing system is 6.41 $\pm 0.14$ kpc and the projected separation between the two components is 13.85 $\pm 0.16$ AU. Alternative interpretations are also considered., Comment: 13 pages, 5 figures, Published in MNRAS

Published
2019
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31. Incidence rates of childhood asthma with recurrent exacerbations in the US Environmental influences on Child Health Outcomes (ECHO) program

Author

Smith, P.B., Newby, K.L., Jacobson, L.P., Catellier, D.J., Gershon, R., Cella, D., Alshawabkeh, A., Aschner, J., Merhar, S., Ren, C., Reynolds, A., Keller, R., Pryhuber, G., Duncan, A., Lampland, A., Wadhawan, R., Wagner, C., Hudak, M., Mayock, D., Walshburn, L., Teitelbaum, S.L., Stroustrup, A., Trasande, L., Blair, C., Gatzke-Kopp, L., Swingler, M., Mansbach, J., Spergel, J., Puls, H., Stevenson, M., Bauer, C., Deoni, S., Duarte, C., Dunlop, A., Elliott, A., Croen, L., Bacharier, L., O’Connor, G., Kattan, M., Wood, R., Hershey, G., Ownby, D., Hertz-Picciotto, I., Hipwell, A., Karagas, M., Karr, C., Mason, A., Sathyanarayana, S., Lester, B., Carter, B., Neal, C., Smith, L., Helderman, J., Leve, L., Ganiban, J., Neiderhiser, J., Weiss, S., Zeiger, R., Tepper, R., Lyall, K., Landa, R., Ozonoff, S., Schmidt, R., Dager, S., Schultz, R., Piven, J., Volk, H., Vaidya, R., Obeid, R., Rollins, C., Bear, K., Pastyrnak, S., Lenski, M., Msall, M., Frazier, J., Washburn, L., Montgomery, A., Barone, C., McKane, P., Paneth, N., Elliott, M., Herbstman, J., Schantz, S., Porucznik, C., Silver, R., Conradt, E., Bosquet-Enlow, M., Huddleston, K., Bush, N., Nguyen, R., O'Connor, T., Samuels-Kalow, M., Miller, Rachel L., Schuh, Holly, Chandran, Aruna, Aris, Izzuddin M., Bendixsen, Casper, Blossom, Jeffrey, Breton, Carrie, Camargo, Carlos A., Jr., Canino, Glorisa, Carroll, Kecia N., Commodore, Sarah, Cordero, José F., Dabelea, Dana M., Ferrara, Assiamira, Fry, Rebecca C., Ganiban, Jody M., Gern, James E., Gilliland, Frank D., Gold, Diane R., Habre, Rima, Hare, Marion E., Harte, Robyn N., Hartert, Tina, Hasegawa, Kohei, Khurana Hershey, Gurjit K., Jackson, Daniel J., Joseph, Christine, Kerver, Jean M., Kim, Haejin, Litonjua, Augusto A., Marsit, Carmen J., McEvoy, Cindy, Mendonça, Eneida A., Moore, Paul E., Nkoy, Flory L., O’Connor, Thomas G., Oken, Emily, Ownby, Dennis, Perzanowski, Matthew, Rivera-Spoljaric, Katherine, Ryan, Patrick H., Singh, Anne Marie, Stanford, Joseph B., Wright, Rosalind J., Wright, Robert O., Zanobetti, Antonella, Zoratti, Edward, and Johnson, Christine C.

Published
2023
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32. Probing Nonlocal Spatial Correlations in Quantum Gases with Ultra-long-range Rydberg Molecules

Author

Whalen, J. D., Kanungo, S. K., Ding, R., Wagner, M., Schmidt, R., Sadeghpour, H. R., Yoshida, S., Burgdörfer, J., Dunning, F. B., and Killian, T. C.

Subjects
Physics - Atomic Physics, Condensed Matter - Quantum Gases
Abstract

We present photo-excitation of ultra-long-range Rydberg molecules as a probe of spatial correlations in quantum gases. Rydberg molecules can be created with well-defined internuclear spacing, set by the radius of the outer lobe of the Rydberg electron wavefunction $R_n$. By varying the principal quantum number $n$ of the target Rydberg state, the molecular excitation rate can be used to map the pair-correlation function of the trapped gas $g^{(2)}(R_n)$. We demonstrate this with ultracold Sr gases and probe pair-separation length scales ranging from $R_n = 1400 - 3200$ $a_0$, which are on the order of the thermal de Broglie wavelength for temperatures around 1 $\mu$K. We observe bunching for a single-component Bose gas of $^{84}$Sr and anti-bunching due to Pauli exclusion at short distances for a polarized Fermi gas of $^{87}$Sr, revealing the effects of quantum statistics., Comment: 6 pages, 5 figures

Published
2019
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33. Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye

Author

Wyrzykowski, Łukasz, Mróz, P., Rybicki, K. A., Gromadzki, M., Kołaczkowski, Z., Zieliński, M., Zieliński, P., Britavskiy, N., Gomboc, A., Sokolovsky, K., Hodgkin, S. T., Abe, L., Aldi, G. F., AlMannaei, A., Altavilla, G., Qasim, A. Al, Anupama, G. C., Awiphan, S., Bachelet, E., Bakıs, V., Baker, S., Bartlett, S., Bendjoya, P., Benson, K., Bikmaev, I. F., Birenbaum, G., Blagorodnova, N., Blanco-Cuaresma, S., Boeva, S., Bonanos, A. Z., Bozza, V., Bramich, D. M., Bruni, I., Burenin, R. A., Burgaz, U., Butterley, T., Caines, H. E., Caton, D. B., Novati, S. Calchi, Carrasco, J. M., Cassan, A., Cepas, V., Cropper, M., Chruślińska, M., Clementini, G., Clerici, A., Conti, D., Conti, M., Cross, S., Cusano, F., Damljanovic, G., Dapergolas, A., D'Ago, G., de Bruijne, J. H. J., Dennefeld, M., Dhillon, V. S., Dominik, M., Dziedzic, J., Ereceantalya, O., Eselevich, M. V., Esenoglu, H., Eyer, L., Jaimes, R. Figuera, Fossey, S. J., Galeev, A. I., Grebenev, S. A., Gupta, A. C., Gutaev, A. G., Hallakoun, N., Hamanowicz, A., Han, C., Handzlik, B., Haislip, J. B., Hanlon, L., Hardy, L. K., Harrison, D. L., van Heerden, H. J., Hoette, V. L., Horne, K., Hudec, R., Hundertmark, M., Ihanec, N., Irtuganov, E. N., Itoh, R., Iwanek, P., Jovanovic, M. D., Janulis, R., Jelínek, M., Jensen, E., Kaczmarek, Z., Katz, D., Khamitov, I. M., Kilic, Y., Klencki, J., Kolb, U., Kopacki, G., Kouprianov, V. V., Kruszyńska, K., Kurowski, S., Latev, G., Lee, C-H., Leonini, S., Leto, G., Lewis, F., Li, Z., Liakos, A., Littlefair, S. P., Lu, J., Manser, C. J., Mao, S., Maoz, D., Martin-Carrillo, A., Marais, J. P., Maskoliūnas, M., Maund, J. R., Meintjes, P. J., Melnikov, S. S., Ment, K., Mikołajczyk, P., Morrell, M., Mowlavi, N., Moździerski, D., Murphy, D., Nazarov, S., Netzel, H., Nesci, R., Ngeow, C. -C., Norton, A. J., Ofek, E. O., Pakstienė, E., Palaversa, L., Pandey, A., Paraskeva, E., Pawlak, M., Penny, M. T., Penprase, B. E., Piascik, A., Prieto, J. L., Qvam, J. K. T., Ranc, C., Rebassa-Mansergas, A., Reichart, D. E., Reig, P., Rhodes, L., Rivet, J. -P., Rixon, G., Roberts, D., Rosi, P., Russell, D. M., Sanchez, R. Zanmar, Scarpetta, G., Seabroke, G., Shappee, B. J., Schmidt, R., Shvartzvald, Y., Sitek, M., Skowron, J., Śniegowska, M., Snodgrass, C., Soares, P. S., van Soelen, B., Spetsieri, Z. T., Stankeviciūtė, A., Steele, I. A., Street, R. A., Strobl, J., Strubble, E., Szegedi, H., Ramirez, L. M. Tinjaca, Tomasella, L., Tsapras, Y., Vernet, D., Villanueva Jr., S., Vince, O., Wambsganss, J., van der Westhuizen, I. P., Wiersema, K., Wium, D., Wilson, R. W., Yoldas, A., Zhuchkov, R. Ya., Zhukov, D. G., Zdanavicius, J., Zoła, S., and Zubareva, A.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the Gaia space mission. Its light curve exhibited five distinct brightening episodes, reaching up to I=12 mag, and it was covered in great detail with almost 25,000 data points gathered by a network of telescopes. We present the photometric and spectroscopic follow-up covering 500 days of the event evolution. We employed a full Keplerian binary orbit microlensing model combined with the motion of Earth and Gaia around the Sun to reproduce the complex light curve. The photometric data allowed us to solve the microlensing event entirely and to derive the complete and unique set of orbital parameters of the binary lensing system. We also report on the detection of the first-ever microlensing space-parallax between the Earth and Gaia located at L2. The properties of the binary system were derived from microlensing parameters, and we found that the system is composed of two main-sequence stars with masses 0.57$\pm$0.05 $M_\odot$ and 0.36$\pm$0.03 $M_\odot$ at 780 pc, with an orbital period of 2.88 years and an eccentricity of 0.30. We also predict the astrometric microlensing signal for this binary lens as it will be seen by Gaia as well as the radial velocity curve for the binary system. Events such as Gaia16aye indicate the potential for the microlensing method of probing the mass function of dark objects, including black holes, in directions other than that of the Galactic bulge. This case also emphasises the importance of long-term time-domain coordinated observations that can be made with a network of heterogeneous telescopes., Comment: accepted for publication in A&A, 24 pages, 10 figures, tables with the data will be available electronically

Published
2019
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34. First assessment of the binary lens OGLE-2015_BLG-0232

Author

Bachelet, E., Bozza, V., Han, C., Udalski, A., Bond, I. A., Beaulieu, J. -P., Street, R. A., Kim, J. -I, Bramich, D. M., Cassan, A., Dominik, M., Jaimes, R. Figuera, Horne, K., Hundertmark, M., Mao, S., Menzies, J., Ranc, C., Schmidt, R., Snodgrass, C., Steele, I. A., Tsapras, Y., Wambsganss, J., Mróz, P., Soszyński, I., Szymański, M. K., Skowron, J., Pietrukowicz, P., Kozłowski, S., Poleski, R., Ulaczyk, K., Pawlak, M., Abe, F., Barry, R., Bennett, D. P., Bhattacharya, A., Donachie, M., Fukui, A., Hirao, Y., Itow, Y., Kawasaki, K., Kondo, I., Koshimoto, N., Li, M. Cheung Alex, Matsubara, Y., Muraki, Y., Miyazaki, S., Nagakane, M., Rattenbury, N. J., Suematsu, H., Sullivan, D. J., Sumi, T., Suzuki, D., Tristram, P. J., and Yonehara, A.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

We present an analysis of the microlensing event OGLE-2015-BLG-0232. This event is challenging to characterize for two reasons. First, the light curve is not well sampled during the caustic crossing due to the proximity of the full Moon impacting the photometry quality. Moreover, the source brightness is difficult to estimate because this event is blended with a nearby K dwarf star. We found that the light curve deviations are likely due to a close brown dwarf companion (i.e., s = 0.55 and q = 0.06), but the exact nature of the lens is still unknown. We finally discuss the potential of follow-up observations to estimate the lens mass and distance in the future., Comment: Accepted in ApJ

Published
2018
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35. Non-Invasive Imaging Biomarkers to Predict the Hepatopulmonary Shunt Fraction Before Transarterial Radioembolization in Patients with Hepatocellular Carcinoma

Author

Hamm CA, Busch F, Pöhlmann A, Shewarega A, He Y, Schmidt R, Xu H, Wieners G, Gebauer B, and Savic LJ

Subjects
hcc, tare, sirt, liver cancer, contrast-enhanced computed tomography, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Charlie Alexander Hamm,1,2,&ast; Felix Busch,1,3,&ast; Anna Pöhlmann,4 Annabella Shewarega,5 Yubei He,1 Robin Schmidt,1 Han Xu,1 Gero Wieners,1 Bernhard Gebauer,1 Lynn Jeanette Savic1,2 1Department of Radiology, Campus Virchow-Klinikum, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität Zu Berlin, Berlin, Germany; 2Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Berlin, Germany; 3Department of Anesthesiology, Division of Operative Intensive Care Medicine, Campus Virchow-Klinikum, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany; 4Institute of Biometry and Clinical Epidemiology, Charité – Universitätsmedizin Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany; 5Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, USA&ast;These authors contributed equally to this workCorrespondence: Lynn Jeanette Savic, Department of Radiology, Campus Virchow-Klinikum, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Augustenburger Platz 1, Berlin, 13353, Germany, Email lynn-jeanette.savic@charite.dePurpose: To identify disease-specific profiles comprising patient characteristics and imaging biomarkers on contrast-enhanced (CE)-computed tomography (CT) that enable the non-invasive prediction of the hepatopulmonary shunt fraction (HPSF) in patients with hepatocellular carcinoma (HCC) before resin-based transarterial radioembolization (TARE).Patients and Methods: This institutional review board-approved (EA2/071/19) retrospective study included 56 patients with HCC recommended for TARE. All patients received tri-phasic CE-CT within 6 weeks prior to an angiographic TARE evaluation study using technetium-99m macroaggregated albumin. Imaging biomarkers representative of tumor extent, morphology, and perfusion, as well as disease-specific clinical parameters, were used to perform data-driven variable selection with backward elimination to generate multivariable linear regression models predictive of HPSF. Results were used to create clinically applicable risk scores for patients scheduled for TARE. Additionally, Cox regression was used to identify independent risk factors for poor overall survival (OS).Results: Mean HPSF was 13.11% ± 7.6% (range: 2.8– 35.97%). Index tumor diameter (p = 0.014) or volume (p = 0.034) in combination with index tumor non-rim arterial phase enhancement (APHE) (p < 0.001) and washout (p < 0.001) were identified as significant non-invasive predictors of HPSF on CE-CT. Specifically, the prediction models revealed that the HPSF increased with index lesion diameter or volume and showed higher HPSF if non-rim APHE was present. In contrast, index tumor washout was associated with decreased HPSF levels. Independent risk factors of poorer OS were radiogenomic venous invasion and ascites at baseline.Conclusion: The featured prediction models can be used for the initial non-invasive estimation of HPSF in patients with HCC before TARE to assist in clinical treatment evaluation while potentially sparing ineligible patients from the angiographic shunt evaluation study.Keywords: HCC, TARE, SIRT, liver cancer, contrast-enhanced computed tomography

Published
2023

36. The Meta VCI Map consortium for meta‐analyses on strategic lesion locations for vascular cognitive impairment using lesion‐symptom mapping: Design and multicenter pilot study

Author

Weaver, Nick A, Zhao, Lei, Biesbroek, J Matthijs, Kuijf, Hugo J, Aben, Hugo P, Bae, Hee‐Joon, Caballero, Miguel ÁA, Chappell, Francesca M, Chen, Christopher PLH, Dichgans, Martin, Duering, Marco, Georgakis, Marios K, van der Giessen, Ruben S, Gyanwali, Bibek, Hamilton, Olivia KL, Hilal, Saima, Hofe, Elise M vom, de Kort, Paul LM, Koudstaal, Peter J, Lam, Bonnie YK, Lim, Jae‐Sung, Makin, Stephen DJ, Mok, Vincent CT, Shi, Lin, Hernández, Maria C Valdés, Venketasubramanian, Narayanaswamy, Wardlaw, Joanna M, Wollenweber, Frank A, Wong, Adrian, Xin, Xu, consortium, Meta VCI Map, DeCarli, C, Fletcher, EA, Maillard, P, Barnes, J, Sudre, CH, Schott, JM, Ikram, MA, Papma, JM, Steketee, RME, Vernooij, MW, Bordet, R, Lopes, R, Huang, C‐W, Frayne, R, McCreary, CR, Smith, EE, group, Calgary Normative Study, Backes, W, Köhler, S, van Oostenbrugge, RJ, Staals, J, Verhey, F, Cheng, CY, Kalaria, RN, Werring, D, Hsu, JL, Huang, K‐L, van der Grond, J, Jukema, JW, van der Mast, RC, Nijboer, TCW, group, Framingham Heart Study, Yu, K‐H, group, The Dutch Parelsnoer Institute–Neurodegenerative diseases, Schmidt, R, Pirpamer, L, MacIntosh, BJ, Robertson, AD, de Leeuw, F‐E, Tuladhar, AM, Chaturvedi, N, Tillin, T, Brodaty, H, Sachdev, P, group, TABASCO, Barkhof, F, van der Flier, WM, Kappelle, LJ, and Biessels, Geert Jan

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Biomedical Imaging, Atherosclerosis, Clinical Research, Brain Disorders, Acquired Cognitive Impairment, Stroke, Neurosciences, Meta VCI Map consortium, Cerebrovascular disease, Consortium, Data harmonization, Lesion location, Lesion-symptom mapping, Small vessel disease, Support vector regression, Vascular cognitive impairment, Genetics, Biological psychology
Abstract

IntroductionThe Meta VCI Map consortium performs meta-analyses on strategic lesion locations for vascular cognitive impairment using lesion-symptom mapping. Integration of data from different cohorts will increase sample sizes, to improve brain lesion coverage and support comprehensive lesion-symptom mapping studies.MethodsCohorts with available imaging on white matter hyperintensities or infarcts and cognitive testing were invited. We performed a pilot study to test the feasibility of multicenter data processing and analysis and determine the benefits to lesion coverage.ResultsForty-seven groups have joined Meta VCI Map (stroke n = 7800 patients; memory clinic n = 4900; population-based n = 14,400). The pilot study (six ischemic stroke cohorts, n = 878) demonstrated feasibility of multicenter data integration (computed tomography/magnetic resonance imaging) and achieved marked improvement of lesion coverage.DiscussionMeta VCI Map will provide new insights into the relevance of vascular lesion location for cognitive dysfunction. After the successful pilot study, further projects are being prepared. Other investigators are welcome to join.

Published
2019

37. Birth outcomes in relation to neighborhood food access and individual food insecurity during pregnancy in the Environmental Influences on Child Health Outcomes (ECHO)-wide cohort study

Author

Aris, Izzuddin M, primary, Lin, Pi-I D, additional, Wu, Allison J, additional, Dabelea, Dana, additional, Lester, Barry M, additional, Wright, Rosalind J, additional, Karagas, Margaret R, additional, Kerver, Jean M, additional, Dunlop, Anne L, additional, Joseph, Christine LM, additional, Camargo, Carlos A, additional, Ganiban, Jody M, additional, Schmidt, Rebecca J, additional, Strakovsky, Rita S, additional, McEvoy, Cindy T, additional, Hipwell, Alison E, additional, O’Shea, Thomas Michael, additional, McCormack, Lacey A, additional, Maldonado, Luis E, additional, Niu, Zhongzheng, additional, Ferrara, Assiamira, additional, Zhu, Yeyi, additional, Chehab, Rana F, additional, Kinsey, Eliza W, additional, Bush, Nicole R, additional, Nguyen, Ruby HN., additional, Carroll, Kecia N, additional, Barrett, Emily S, additional, Lyall, Kristen, additional, Sims-Taylor, Lauren M, additional, Trasande, Leonardo, additional, Biagini, Jocelyn M, additional, Breton, Carrie V, additional, Patti, Marisa A, additional, Coull, Brent, additional, Amutah-Onukagha, Ndidiamaka, additional, Hacker, Michele R, additional, James-Todd, Tamarra, additional, Oken, Emily, additional, Smith, P.B., additional, Newby, L.K., additional, Jacobson, L.P., additional, Catellier, D.J., additional, Fuselier, G, additional, Gershon, R, additional, Cella, D, additional, Teitelbaum, S.L., additional, Stroustrup, A, additional, Merhar, S, additional, Lampland, A, additional, Reynolds, A, additional, Hudak, M, additional, Pryhuber, G, additional, Moore, P, additional, Washburn, L, additional, Gatzke-Kopp, L, additional, Swingler, M, additional, Laham, F.R., additional, Mansbach, J.M., additional, Wu, S, additional, Spergel, J.M., additional, Celedón, J.C., additional, Puls, H.T., additional, Teach, S.J., additional, Porter, S.C., additional, Waynik, I.Y., additional, Iyer, S.S., additional, Samuels-Kalow, M.E., additional, Thompson, A.D., additional, Stevenson, M.D., additional, Bauer, C.S., additional, Inhofe, N.R., additional, Boos, M, additional, Macias, C.G., additional, Koinis Mitchell, D, additional, Duarte, C.S., additional, Monk, C, additional, Posner, J, additional, Canino, G, additional, Croen, L, additional, Gern, J, additional, Zoratti, E, additional, Seroogy, C, additional, Bendixsen, C, additional, Jackson, D, additional, Bacharier, L, additional, O’Connor, G, additional, Kattan, M, additional, Wood, R, additional, Rivera-Spoljaric, K, additional, Hershey, G, additional, Johnson, C, additional, Bastain, T, additional, Farzan, S, additional, Habre, R, additional, Hertz-Picciotto, I, additional, Hipwell, A, additional, Keenan, K, additional, Karr, C, additional, Tylavsky, F, additional, Mason, A, additional, Zhao, Q, additional, Sathyanarayana, S, additional, Bush, N, additional, LeWinn, K.Z., additional, Carter, B, additional, Pastyrnak, S, additional, Neal, C, additional, Smith, L, additional, Helderman, J, additional, Leve, L, additional, Neiderhiser, J, additional, Weiss, S.T., additional, Litonjua, A, additional, Zeiger, R, additional, McEvoy, C, additional, Tepper, R, additional, Lyall, K, additional, Volk, H, additional, Landa, R, additional, Ozonoff, S, additional, Schmidt, R, additional, Dager, S, additional, Schultz, R, additional, Piven, J, additional, O’Shea, M, additional, Vaidya, R, additional, Obeid, R, additional, Rollins, C, additional, Bear, K, additional, Lenski, M, additional, Singh, R, additional, Msall, M, additional, Frazier, J, additional, Gogcu, S, additional, Montgomery, A, additional, Kuban, K, additional, Douglass, L, additional, Jara, H, additional, Joseph, R, additional, Kerver, J.M., additional, Barone, C, additional, Fussman, C, additional, Paneth, N, additional, Elliott, M, additional, Ruden, D, additional, Herbstman, J, additional, Schantz, S, additional, Woodruff, T, additional, Stanford, J, additional, Porucznik, C, additional, Giardino, A, additional, Wright, R.J., additional, Bosquet-Enlow, M, additional, Huddleston, K, additional, Nguyen, R, additional, Barrett, E, additional, Swan, S, additional, and Miller, R, additional

Published
2024
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39. OGLE-2014-BLG-1186: gravitational microlensing providing evidence for a planet orbiting the foreground star or for a close binary source?

Author

Dominik, M., Bachelet, E., Bozza, V., Street, R. A., Han, C., Hundertmark, M., Udalski, A., Bramich, D. M., Alsubai, K. A., Novati, S. Calchi, Ciceri, S., D'Ago, G., Jaimes, R. Figuera, Haugbølle, T., Hinse, T. C., Horne, K., Jørgensen, U. G., Juncher, D., Kains, N., Korhonen, H., Mancini, L., Menzies, J., Popovas, A., Rabus, M., Rahvar, S., Scarpetta, G., Schmidt, R., Skottfelt, J., Snodgrass, C., Southworth, J., Starkey, D., Steele, I. A., Surdej, J., Tsapras, Y., Wambsganss, J., Wertz, O., Pietrukowicz, P., Szymański, M. K., Mróz, P., Skowron, J., Soszyński, I., Ulaczyk, K., and Poleski, R.

Subjects
Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Abstract

(abridged) Using the particularly long gravitational microlensing event OGLE-2014-BLG-1186 with a time-scale $t_\mathrm{E}$ ~ 300 d, we present a methodology for identifying the nature of localised deviations from single-lens point-source light curves, which ensures that 1) the claimed signal is substantially above the noise floor, 2) the inferred properties are robustly determined and their estimation not subject to confusion with systematic noise in the photometry, 3) there are no alternative viable solutions within the model framework that might have been missed. Annual parallax and binarity could be separated and robustly measured from the wing and the peak data, respectively. We find matching model light curves that involve either a binary lens or a binary source. Our binary-lens models indicate a planet of mass $M_2$ = (45 $\pm$ 9) $M_\oplus$, orbiting a star of mass $M_1$ = (0.35 $\pm$ 0.06) $M_\odot$, located at a distance $D_\mathrm{L}$ = (1.7 $\pm$ 0.3) kpc from Earth, whereas our binary-source models suggest a brown-dwarf lens of $M$ = (0.046 $\pm$ 0.007) $M_\odot$, located at a distance $D_\mathrm{L}$ = (5.7 $\pm$ 0.9) kpc, with the source potentially being a (partially) eclipsing binary involving stars predicted to be of similar colour given the ratios between the luminosities and radii. The ambiguity in the interpretation would be resolved in favour of a lens binary by observing the luminous lens star separating from the source at the predicted proper motion of $\mu$ = (1.6 $\pm$ 0.3) mas yr$^{-1}$, whereas it would be resolved in favour of a source binary if the source could be shown to be a (partially) eclipsing binary matching the obtained model parameters. We experienced that close binary source stars pose a challenge for claiming the detection of planets by microlensing in events where the source passes very close to the lens star hosting the planet., Comment: 26 pages, 14 figures

Published
2018
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40. A deterministically fabricated spectrally-tunable quantum dot based single-photon source

Author

Fischbach, S., Helversen, M. v., Schmidt, M., Kaganskiy, A., Schmidt, R., Schliwa, A., Heindel, T., Rodt, S., and Reitzenstein, S.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Spectrally-tunable quantum-light sources are key elements for the realization of long-distance quantum communication. A deterministically fabricated single-photon source with a photon-extraction efficiency of {\eta}=(20 +- 2) % and a tuning range of {\Delta}E=2.5 meV is presented here. The device consists of a single pre-selected quantum dot monolithically integrated into a microlens which is bonded onto a piezoelectric actuator via thermocompression goldbonding. The thin gold layer simultaneously acts as a backside mirror for the quantum dot emission, which is efficiently extracted from the device by an optimized lens structure patterned via 3D in-situ electron-beam lithography. The single-photon nature of the emission is proven by photon-autocorrelation measurements with $g^{(2)}$ ({\tau}=0)=0.04 +- 0.02. The combination of deterministic fabrication, spectral-tunability and high broadband photon-extraction efficiency makes the microlens single-photon source an interesting building block towards the realization of quantum repeaters networks., Comment: 16 pages, 5 figures

Published
2018

41. OGLE-2014-BLG-0289: Precise Characterization of a Quintuple-Peak Gravitational Microlensing Event

Author

Udalski, A., Han, C., Bozza, V., Gould, A., Bond, I. A., Mróz, P., Skowron, J., Wyrzykowski, Ł., Szymański, M. K., Soszyński, I., Ulaczyk, K., Poleski, R., Pietrukowicz, P., Kozłowski, S., Abe, F., Barry, R., Bennett, D. P., Bhattacharya, A., Donachie, M., Evans, P., Fukui, A., Hirao, Y., Itow, Y., Kawasaki, K., Koshimoto, N., Li, M. C. A., Ling, C. H., Masuda, K., Matsubara, Y., Miyazaki, S., Munakata, H., Muraki, Y., Nagakane, M., Ohnishi, K., Ranc, C., Rattenbury, N., Saito, T., Sharan, A., Sullivan, D. J., Sumi, T., Suzuki, D., Tristram, P. J., Yamada, T., Yonehara, A., Bachelet, E., Bramich, D. M., DÁgo, G., Dominik, M., Jaimes, R. Figuera, Horne, K., Hundertmark, M., Kains, N., Menzies, J., Schmidt, R., Snodgrass, C., Steele, I. A., Wambsganss, J., Pogge, R. W., Jung, Y. K., Shin, I. -G., Yee, J. C., Kim, W. -T., Beichman, C., Carey, S., Novati, S. Calchi, and Zhu, W.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We present the analysis of the binary-microlensing event OGLE-2014-BLG-0289. The event light curve exhibits very unusual five peaks where four peaks were produced by caustic crossings and the other peak was produced by a cusp approach. It is found that the quintuple-peak features of the light curve provide tight constraints on the source trajectory, enabling us to precisely and accurately measure the microlensing parallax $\pi_{\rm E}$. Furthermore, the three resolved caustics allow us to measure the angular Einstein radius $\thetae$. From the combination of $\pi_{\rm E}$ and $\thetae$, the physical lens parameters are uniquely determined. It is found that the lens is a binary composed of two M dwarfs with masses $M_1 = 0.52 \pm 0.04\ M_\odot$ and $M_2=0.42 \pm 0.03\ M_\odot$ separated in projection by $a_\perp = 6.4 \pm 0.5$ au. The lens is located in the disk with a distance of $D_{\rm L} = 3.3 \pm 0.3$~kpc. It turns out that the reason for the absence of a lensing signal in the {\it Spitzer} data is that the time of observation corresponds to the flat region of the light curve., Comment: 10 pages, 7 figures

Published
2018
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42. Cover cropping and no-till increase diversity and symbiotroph:saprotroph ratios of soil fungal communities

Author

Schmidt, R, Mitchell, J, and Scow, K

Subjects
Agronomy & Agriculture, Environmental Sciences, Biological Sciences, Agricultural and Veterinary Sciences
Abstract

Fungi are important members of soil microbial communities in row-crop and grassland soils, provide essential ecosystem services such as nutrient cycling, organic matter decomposition, and soil structure, but fungi are also more sensitive to physical disturbance than other microorganisms. Adoption of conservation management practices such as no-till and cover cropping shape the structure and function of soil fungal communities. No-till eliminates or greatly reduces the physical disturbance that re-distributes organisms and nutrients in the soil profile and disrupts fungal hyphal networks, while cover crops provide additional types and greater abundance of organic carbon sources. In a long-term, row crop field experiment in California's Central Valley we hypothesized that a more diverse and plant symbiont-enriched fungal soil community would develop in soil managed with reduced tillage practices and/or cover crops compared to standard tillage and no cover crops. We measured the interacting effects of tillage and cover cropping on fungal communities based on fungal ITS sequence assigned to ecological guilds. Functional groups within fungal communities were most sensitive to long-term tillage practices, with 45% of guild-assigned taxa responding to tillage, and a higher proportion of symbiotroph taxa under no-till. In contrast, diversity measures reflected greater sensitivity to cover crops, with higher phylogenetic diversity observed in soils managed with cover crops, though only 10% of guild-assigned taxa responded to cover crops. The relative abundance of pathotrophs did not vary across the management treatments. Cover cropping increased species diversity, while no-till shifted the symbiotroph:saprotroph ratio to favor symbiotrophs. These management-induced shifts in fungal community composition could lead to greater ecosystem resilience and provide greater access of crops to limiting resources.

Published
2019

43. Migraine-Associated Common Genetic Variants Confer Greater Risk of Posterior vs. Anterior Circulation Ischemic Stroke☆

Author

Frid, P., Xu, H., Mitchell, B.D., Drake, M., Wasselius, J., Gaynor, B., Ryan, K., Giese, A.K., Schirmer, M., Donahue, K.L., Irie, R., Bouts, M.J.R.J., McIntosh, E.C., Mocking, S.J.T., Dalca, A.V., Giralt-Steinhauer, E., Holmegaard, L., Jood, K., Roquer, J., Cole, J.W., McArdle, P.F., Broderick, J.P., Jimenez-Conde, J., Jern, C., Kissela, B.M., Kleindorfer, D.O., Lemmens, R., Meschia, J.F., Rosand, J., Rundek, T., Sacco, R.L., Schmidt, R., Sharma, P., Slowik, A., Thijs, V., Woo, D., Worrall, B.B., Kittner, S.J., Petersson, J., Golland, P., Wu, O., Rost, N.S., and Lindgren, A.

Published
2022
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45. Erratum to: Searches for long-lived charged particles in pp collisions at s = 7 and 8 TeV

Author

Chatrchyan, S., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., Fabjan, C., Friedl, M., Frühwirth, R., Ghete, V. M., Hörmann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., Knünz, V., Krammer, M., Krätschmer, I., Liko, D., Mikulec, I., Rabady, D., Rahbaran, B., Rohringer, C., Rohringer, H., Schöfbeck, R., Strauss, J., Taurok, A., Treberer-Treberspurg, W., Waltenberger, W., Wulz, C.-E., Mossolov, V., Shumeiko, N., Suarez Gonzalez, J., Alderweireldt, S., Bansal, M., Bansal, S., Cornelis, T., De Wolf, E. A., Janssen, X., Knutsson, A., Luyckx, S., Mucibello, L., Ochesanu, S., Roland, B., Rougny, R., Van Haevermaet, H., Van Mechelen, P., Van Remortel, N., Van Spilbeeck, A., Blekman, F., Blyweert, S., D’Hondt, J., Kalogeropoulos, A., Keaveney, J., Maes, M., Olbrechts, A., Tavernier, S., Van Doninck, W., Van Mulders, P., Van Onsem, G. P., Villella, I., Clerbaux, B., De Lentdecker, G., Favart, L., Gay, A. P. R., Hreus, T., Léonard, A., Marage, P. E., Mohammadi, A., Perniè, L., Reis, T., Seva, T., Thomas, L., Vander Velde, C., Vanlaer, P., Wang, J., Adler, V., Beernaert, K., Benucci, L., Cimmino, A., Costantini, S., Dildick, S., Garcia, G., Klein, B., Lellouch, J., Marinov, A., Mccartin, J., Ocampo Rios, A. A., Ryckbosch, D., Sigamani, M., Strobbe, N., Thyssen, F., Tytgat, M., Walsh, S., Yazgan, E., Zaganidis, N., Basegmez, S., Beluffi, C., Bruno, G., Castello, R., Caudron, A., Ceard, L., Delaere, C., du Pree, T., Favart, D., Forthomme, L., Giammanco, A., Hollar, J., Jez, P., Lemaitre, V., Liao, J., Militaru, O., Nuttens, C., Pagano, D., Pin, A., Piotrzkowski, K., Popov, A., Selvaggi, M., Vizan Garcia, J. M., Beliy, N., Caebergs, T., Daubie, E., Hammad, G. H., Alves, G. A., Correa Martins Junior, M., Martins, T., Pol, M. E., Souza, M. H. G., Aldá Júnior, W. L., Carvalho, W., Chinellato, J., Custódio, A., Da Costa, E. M., De Jesus Damiao, D., De Oliveira Martins, C., Fonseca De Souza, S., Malbouisson, H., Malek, M., Matos Figueiredo, D., Mundim, L., Nogima, H., Prado Da Silva, W. L., Santoro, A., Sznajder, A., Tonelli Manganote, E. J., Vilela Pereira, A., Bernardes, C. A., Dias, F. A., Fernandez Perez Tomei, T. R., Gregores, E. M., Lagana, C., Marinho, F., Mercadante, P. G., Novaes, S. F., Padula, Sandra S., Genchev, V., Iaydjiev, P., Piperov, S., Rodozov, M., Sultanov, G., Vutova, M., Dimitrov, A., Hadjiiska, R., Kozhuharov, V., Litov, L., Pavlov, B., Petkov, P., Bian, J. G., Chen, G. M., Chen, H. S., Jiang, C. H., Liang, D., Liang, S., Meng, X., Tao, J., Wang, J., Wang, X., Wang, Z., Xiao, H., Xu, M., Asawatangtrakuldee, C., Ban, Y., Guo, Y., Li, W., Liu, S., Mao, Y., Qian, S. J., Teng, H., Wang, D., Zhang, L., Zou, W., Avila, C., Carrillo Montoya, C. A., Gomez, J. P., Gomez Moreno, B., Sanabria, J. C., Godinovic, N., Lelas, D., Plestina, R., Polic, D., Puljak, I., Antunovic, Z., Kovac, M., Brigljevic, V., Duric, S., Kadija, K., Luetic, J., Mekterovic, D., Morovic, S., Tikvica, L., Attikis, A., Mavromanolakis, G., Mousa, J., Nicolaou, C., Ptochos, F., Razis, P. A., Finger, M., Finger, Jr., M., Assran, Y., Ellithi Kamel, A., Mahmoud, M. A., Mahrous, A., Radi, A., Kadastik, M., Müntel, M., Murumaa, M., Raidal, M., Rebane, L., Tiko, A., Eerola, P., Fedi, G., Voutilainen, M., Härkönen, J., Karimäki, V., Kinnunen, R., Kortelainen, M. J., Lampén, T., Lassila-Perini, K., Lehti, S., Lindén, T., Luukka, P., Mäenpää, T., Peltola, T., Tuominen, E., Tuominiemi, J., Tuovinen, E., Wendland, L., Korpela, A., Tuuva, T., Besancon, M., Choudhury, S., Couderc, F., Dejardin, M., Denegri, D., Fabbro, B., Faure, J. L., Ferri, F., Ganjour, S., Givernaud, A., Gras, P., Hamel de Monchenault, G., Jarry, P., Locci, E., Malcles, J., Millischer, L., Nayak, A., Rander, J., Rosowsky, A., Titov, M., Baffioni, S., Beaudette, F., Benhabib, L., Bianchini, L., Bluj, M., Busson, P., Charlot, C., Daci, N., Dahms, T., Dalchenko, M., Dobrzynski, L., Florent, A., Granier de Cassagnac, R., Haguenauer, M., Miné, P., Mironov, C., Naranjo, I. N., Nguyen, M., Ochando, C., Paganini, P., Sabes, D., Salerno, R., Sirois, Y., Veelken, C., Zabi, A., Agram, J.-L., Andrea, J., Bloch, D., Bodin, D., Brom, J.-M., Chabert, E. C., Collard, C., Conte, E., Drouhin, F., Fontaine, J.-C., Gelé, D., Goerlach, U., Goetzmann, C., Juillot, P., Le Bihan, A.-C., Van Hove, P., Gadrat, S., Beauceron, S., Beaupere, N., Boudoul, G., Brochet, S., Chasserat, J., Chierici, R., Contardo, D., Depasse, P., El Mamouni, H., Fay, J., Gascon, S., Gouzevitch, M., Ille, B., Kurca, T., Lethuillier, M., Mirabito, L., Perries, S., Sgandurra, L., Sordini, V., Tschudi, Y., Vander Donckt, M., Verdier, P., Viret, S., Tsamalaidze, Z., Autermann, C., Beranek, S., Calpas, B., Edelhoff, M., Feld, L., Heracleous, N., Hindrichs, O., Klein, K., Ostapchuk, A., Perieanu, A., Raupach, F., Sammet, J., Schael, S., Sprenger, D., Weber, H., Wittmer, B., Zhukov, V., Ata, M., Caudron, J., Dietz-Laursonn, E., Duchardt, D., Erdmann, M., Fischer, R., Güth, A., Hebbeker, T., Heidemann, C., Hoepfner, K., Klingebiel, D., Kreuzer, P., Merschmeyer, M., Meyer, A., Olschewski, M., Padeken, K., Papacz, P., Pieta, H., Reithler, H., Schmitz, S. A., Sonnenschein, L., Steggemann, J., Teyssier, D., Thüer, S., Weber, M., Cherepanov, V., Erdogan, Y., Flügge, G., Geenen, H., Geisler, M., Haj Ahmad, W., Hoehle, F., Kargoll, B., Kress, T., Kuessel, Y., Lingemann, J., Nowack, A., Nugent, I. M., Perchalla, L., Pooth, O., Stahl, A., Aldaya Martin, M., Asin, I., Bartosik, N., Behr, J., Behrenhoff, W., Behrens, U., Bergholz, M., Bethani, A., Borras, K., Burgmeier, A., Cakir, A., Calligaris, L., Campbell, A., Costanza, F., Diez Pardos, C., Dooling, S., Dorland, T., Eckerlin, G., Eckstein, D., Flucke, G., Geiser, A., Glushkov, I., Gunnellini, P., Habib, S., Hauk, J., Hellwig, G., Jung, H., Kasemann, M., Katsas, P., Kleinwort, C., Kluge, H., Krämer, M., Krücker, D., Kuznetsova, E., Lange, W., Leonard, J., Lipka, K., Lohmann, W., Lutz, B., Mankel, R., Marfin, I., Melzer-Pellmann, I.-A., Meyer, A. B., Mnich, J., Mussgiller, A., Naumann-Emme, S., Novgorodova, O., Nowak, F., Olzem, J., Perrey, H., Petrukhin, A., Pitzl, D., Placakyte, R., Raspereza, A., Ribeiro Cipriano, P. M., Riedl, C., Ron, E., Sahin, M. Ö., Salfeld-Nebgen, J., Schmidt, R., Schoerner-Sadenius, T., Sen, N., Stein, M., Walsh, R., Wissing, C., Blobel, V., Enderle, H., Erfle, J., Gebbert, U., Görner, M., Gosselink, M., Haller, J., Heine, K., Höing, R. S., Kaussen, G., Kirschenmann, H., Klanner, R., Kogler, R., Lange, J., Marchesini, I., Peiffer, T., Pietsch, N., Rathjens, D., Sander, C., Schettler, H., Schleper, P., Schlieckau, E., Schmidt, A., Schröder, M., Schum, T., Seidel, M., Sibille, J., Sola, V., Stadie, H., Steinbrück, G., Thomsen, J., Troendle, D., Vanelderen, L., Barth, C., Baus, C., Berger, J., Böser, C., Chwalek, T., De Boer, W., Descroix, A., Dierlamm, A., Feindt, M., Guthoff, M., Hackstein, C., Hartmann, F., Hauth, T., Heinrich, M., Held, H., Hoffmann, K. H., Husemann, U., Katkov, I., Komaragiri, J. 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B., Kumar, Ashok, Kumar, Arun, Ahuja, S., Bhardwaj, A., Choudhary, B. C., Malhotra, S., Naimuddin, M., Ranjan, K., Saxena, P., Sharma, V., Shivpuri, R. K., Banerjee, S., Bhattacharya, S., Chatterjee, K., Dutta, S., Gomber, B., Jain, Sa., Jain, Sh., Khurana, R., Modak, A., Mukherjee, S., Roy, D., Sarkar, S., Sharan, M., Abdulsalam, A., Dutta, D., Kailas, S., Kumar, V., Mohanty, A. K., Pant, L. M., Shukla, P., Topkar, A., Aziz, T., Chatterjee, R. M., Ganguly, S., Ghosh, S., Guchait, M., Gurtu, A., Kole, G., Kumar, S., Maity, M., Majumder, G., Mazumdar, K., Mohanty, G. B., Parida, B., Sudhakar, K., Wickramage, N., Banerjee, S., Dugad, S., Arfaei, H., Bakhshiansohi, H., Etesami, S. M., Fahim, A., Hesari, H., Jafari, A., Khakzad, M., Mohammadi Najafabadi, M., Paktinat Mehdiabadi, S., Safarzadeh, B., Zeinali, M., Grunewald, M., Abbrescia, M., Barbone, L., Calabria, C., Chhibra, S. S., Colaleo, A., Creanza, D., De Filippis, N., De Palma, M., Fiore, L., Iaselli, G., Maggi, G., Maggi, M., Marangelli, B., My, S., Nuzzo, S., Pacifico, N., Pompili, A., Pugliese, G., Selvaggi, G., Silvestris, L., Singh, G., Venditti, R., Verwilligen, P., Zito, G., Abbiendi, G., Benvenuti, A. C., Bonacorsi, D., Braibant-Giacomelli, S., Brigliadori, L., Campanini, R., Capiluppi, P., Castro, A., Cavallo, F. R., Cuffiani, M., Dallavalle, G. M., Fabbri, F., Fanfani, A., Fasanella, D., Giacomelli, P., Grandi, C., Guiducci, L., Marcellini, S., Masetti, G., Meneghelli, M., Montanari, A., Navarria, F. L., Odorici, F., Perrotta, A., Primavera, F., Rossi, A. M., Rovelli, T., Siroli, G. 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M., Lista, L., Meola, S., Merola, M., Paolucci, P., Azzi, P., Bacchetta, N., Bisello, D., Branca, A., Carlin, R., Checchia, P., Dorigo, T., Dosselli, U., Galanti, M., Gasparini, F., Gasparini, U., Giubilato, P., Gozzelino, A., Gulmini, M., Kanishchev, K., Lacaprara, S., Lazzizzera, I., Margoni, M., Maron, G., Meneguzzo, A. T., Pazzini, J., Pozzobon, N., Ronchese, P., Simonetto, F., Torassa, E., Tosi, M., Vanini, S., Zotto, P., Zucchetta, A., Zumerle, G., Gabusi, M., Ratti, S. P., Riccardi, C., Vitulo, P., Biasini, M., Bilei, G. M., Fanò, L., Lariccia, P., Mantovani, G., Menichelli, M., Nappi, A., Romeo, F., Saha, A., Santocchia, A., Spiezia, A., Androsov, K., Azzurri, P., Bagliesi, G., Boccali, T., Broccolo, G., Castaldi, R., D’Agnolo, R. T., Dell’Orso, R., Fiori, F., Foà, L., Giassi, A., Kraan, A., Ligabue, F., Lomtadze, T., Martini, L., Messineo, A., Palla, F., Rizzi, A., Serban, A. T., Spagnolo, P., Squillacioti, P., Tenchini, R., Tonelli, G., Venturi, A., Verdini, P. 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M., Rogerson, S., Rose, A., Seez, C., Sharp, P., Sparrow, A., Tapper, A., Vazquez Acosta, M., Virdee, T., Wakefield, S., Wardle, N., Whyntie, T., Chadwick, M., Cole, J. E., Hobson, P. R., Khan, A., Kyberd, P., Leggat, D., Leslie, D., Martin, W., Reid, I. D., Symonds, P., Teodorescu, L., Turner, M., Dittmann, J., Hatakeyama, K., Kasmi, A., Liu, H., Scarborough, T., Charaf, O., Cooper, S. I., Henderson, C., Rumerio, P., Avetisyan, A., Bose, T., Fantasia, C., Heister, A., Lawson, P., Lazic, D., Rohlf, J., Sperka, D., St. John, J., Sulak, L., Alimena, J., Bhattacharya, S., Christopher, G., Cutts, D., Demiragli, Z., Ferapontov, A., Garabedian, A., Heintz, U., Kukartsev, G., Laird, E., Landsberg, G., Luk, M., Narain, M., Segala, M., Sinthuprasith, T., Speer, T., Breedon, R., Breto, G., Calderon De La Barca Sanchez, M., Chauhan, S., Chertok, M., Conway, J., Conway, R., Cox, P. 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M., Kroeger, R., Perera, L., Rahmat, R., Sanders, D. A., Summers, D., Avdeeva, E., Bloom, K., Bose, S., Claes, D. R., Dominguez, A., Eads, M., Gonzalez Suarez, R., Keller, J., Kravchenko, I., Lazo-Flores, J., Malik, S., Meier, F., Snow, G. R., Dolen, J., Godshalk, A., Iashvili, I., Jain, S., Kharchilava, A., Kumar, A., Rappoccio, S., Wan, Z., Alverson, G., Barberis, E., Baumgartel, D., Chasco, M., Haley, J., Massironi, A., Nash, D., Orimoto, T., Trocino, D., Wood, D., Zhang, J., Anastassov, A., Hahn, K. A., Kubik, A., Lusito, L., Mucia, N., Odell, N., Pollack, B., Pozdnyakov, A., Schmitt, M., Stoynev, S., Velasco, M., Won, S., Berry, D., Brinkerhoff, A., Chan, K. M., Hildreth, M., Jessop, C., Karmgard, D. J., Kolb, J., Lannon, K., Luo, W., Lynch, S., Marinelli, N., Morse, D. M., Pearson, T., Planer, M., Ruchti, R., Slaunwhite, J., Valls, N., Wayne, M., Wolf, M., Antonelli, L., Bylsma, B., Durkin, L. S., Hill, C., Hughes, R., Kotov, K., Ling, T. 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Published
2022
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47. OGLE-2016-BLG-1190Lb: First Spitzer Bulge Planet Lies Near the Planet/Brown-Dwarf Boundary

Author

Ryu, Y. -H., Yee, J. C., Udalski, A., Bond, I. A., Shvartzvald, Y., Zang, W., Jaimes, R. Figuera, Jorgensen, U. G., Zhu, W., Huang, C. X., Jung, Y. K., Albrow, M. D., Chung, S. -J., Gould, A., Han, C., Hwang, K. -H., Shin, I. -G., Cha, S. -M., Kim, D. -J., Kim, H. -W., Kim, S. -L., Lee, C. -U., Lee, D. -J., Lee, Y., Park, B. -G., Pogge, R. W., Novati, S. Calchi, Carey, S., Henderson, C. B., Beichman, C., Gaudi, B. S., Mróz, P., Poleski, R., Skowron, J., Szymanski, M. K., Soszynski, I., Kozlowski, S., Pietrukowicz, P., Ulaczyk, K., Pawlak, M., Abe, F., Asakura, Y., Barry, R., Bennett, D. P., Bhattacharya, A., Donachie, M., Evans, P., Fukui, A., Hirao, Y., Itow, Y., Kawasaki, K., Koshimoto, N., Li, M. C. A., Ling, C. H., Masuda, K., Matsubara, Y., Miyazaki, S., Muraki, Y., Nagakane, M., Ohnishi, K., Ranc, C., Rattenbury, N. J., Saito, To., Sharan, A., Sullivan, D. J., Sumi, T., Suzuki, D., Tristram, P. J., Yamada, T., Yonehara, A., Bryden, G., Howell, S. B., Jacklin, S., Penny, M. T., Mao, S., Fouque, Pascal, Wang, T., Street, R. A., Tsapras, Y., Hundertmark, M., Bachelet, E., Dominik, M., Li, Z., Cross, S., Cassan, A., Horne, K., Schmidt, R., Wambsganss, J., Ment, S. K., Maoz, D., Snodgrass, C., Steele, I. A., Bozza, V., Burgdorf, M. J., Ciceri, S., D'Ago, G., Evans, D. F., Hinse, T. C., Kerins, E., Kokotanekova, R., Longa, P., MacKenzie, J., Popovas, A., Rabus, M., Rahvar, S., Sejadian, S., Skottfelt, J., Southworth, J., and von Essen, C.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

We report the discovery of OGLE-2016-BLG-1190Lb, which is likely to be the first Spitzer microlensing planet in the Galactic bulge/bar, an assignation that can be confirmed by two epochs of high-resolution imaging of the combined source-lens baseline object. The planet's mass M_p= 13.4+-0.9 M_J places it right at the deuterium burning limit, i.e., the conventional boundary between "planets" and "brown dwarfs". Its existence raises the question of whether such objects are really "planets" (formed within the disks of their hosts) or "failed stars" (low mass objects formed by gas fragmentation). This question may ultimately be addressed by comparing disk and bulge/bar planets, which is a goal of the Spitzer microlens program. The host is a G dwarf M_host = 0.89+-0.07 M_sun and the planet has a semi-major axis a~2.0 AU. We use Kepler K2 Campaign 9 microlensing data to break the lens-mass degeneracy that generically impacts parallax solutions from Earth-Spitzer observations alone, which is the first successful application of this approach. The microlensing data, derived primarily from near-continuous, ultra-dense survey observations from OGLE, MOA, and three KMTNet telescopes, contain more orbital information than for any previous microlensing planet, but not quite enough to accurately specify the full orbit. However, these data do permit the first rigorous test of microlensing orbital-motion measurements, which are typically derived from data taken over <1% of an orbital period., Comment: 63 pages, 13 figures, 7 tables, AJ, in press

Published
2017
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48. RoboTAP - target priorities for robotic microlensing observations

Author

Hundertmark, M., Street, R. A., Tsapras, Y., Bachelet, E., Dominik, M., Horne, K., Bozza, V., Bramich, D. M., Cassan, A., D'Ago, G., Jaimes, R. Figuera, Kains, N., Ranc, C., Schmidt, R. W., Snodgrass, C., Wambsganss, J., Steele, I. A., Mao, S., Ment, K., Menzies, J., Li, Z., Cross, S., Maoz, D., and Shvartzvald, Y.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

Context. The ability to automatically select scientifically-important transient events from an alert stream of many such events, and to conduct follow-up observations in response, will become increasingly important in astronomy. With wide-angle time domain surveys pushing to fainter limiting magnitudes, the capability to follow-up on transient alerts far exceeds our follow-up telescope resources, and effective target prioritization becomes essential. The RoboNet-II microlensing program is a pathfinder project which has developed an automated target selection process (RoboTAP) for gravitational microlensing events which are observed in real-time using the Las Cumbres Observatory telescope network. Aims. Follow-up telescopes typically have a much smaller field-of-view compared to surveys, therefore the most promising microlens- ing events must be automatically selected at any given time from an annual sample exceeding 2000 events. The main challenge is to select between events with a high planet detection sensitivity, aiming at the detection of many planets and characterizing planetary anomalies. Methods. Our target selection algorithm is a hybrid system based on estimates of the planet detection zones around a microlens. It follows automatic anomaly alerts and respects the expected survey coverage of specific events. Results. We introduce the RoboTAP algorithm, whose purpose is to select and prioritize microlensing events with high sensitivity to planetary companions. In this work, we determine the planet sensitivity of the RoboNet follow-up program and provide a working example of how a broker can be designed for a real-life transient science program conducting follow-up observations in response to alerts, exploring the issues that will confront similar programs being developed for the Large Synoptic Survey Telescope (LSST) and other time domain surveys., Comment: 13 pages, 14 figures

Published
2017
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49. Theory of excitation of Rydberg polarons in an atomic quantum gas

Author

Schmidt, R., Whalen, J. D., Ding, R., Camargo, F., Woehl Jr., G., Yoshida, S., Burgdorfer, J., Dunning, F. B., Demler, E., Sadeghepour, H. R., and Killian, T. C.

Subjects
Physics - Atomic Physics, Condensed Matter - Quantum Gases
Abstract

We present a quantum many-body description of the excitation spectrum of Rydberg polarons in a Bose gas. The many-body Hamiltonian is solved with functional determinant theory, and we extend this technique to describe Rydberg polarons of finite mass. Mean-field and classical descriptions of the spectrum are derived as approximations of the many-body theory. The various approaches are applied to experimental observations of polarons created by excitation of Rydberg atoms in a strontium Bose-Einstein condensate., Comment: 14 pages, 9 figures. arXiv admin note: substantial text overlap with arXiv:1706.03717

Published
2017
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50. Thermodynamic fingerprints of non-Markovianity in a system of coupled superconducting qubits

Author

Raja, S. Hamedani, Borrelli, M., Schmidt, R., Pekola, J. P., and Maniscalco, S.

Subjects
Quantum Physics
Abstract

The exploitation and characterization of memory effects arising from the interaction between system and environment is a key prerequisite for quantum reservoir engineering beyond the standard Markovian limit. In this paper we investigate a prototype of non-Markovian dynamics experimentally implementable with superconducting qubits. We rigorously quantify non-Markovianity highlighting the effects of the environmental temperature on the Markovian to non-Markovian crossover. We investigate how memory effects influence, and specifically suppress, the ability to perform work on the driven qubit. We show that the average work performed on the qubit can be used as a diagnostic tool to detect the presence or absence of memory effects., Comment: 9 pages

Published
2017
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