5,702 results on '"Baglin, A."'
Search Results
2. Beneath HMGA2 alterations in pleomorphic adenomas: Pathological, immunohistochemical, and molecular insights
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Ala-Eddine, C., Aubry, K., Babin, E., Bach, C., Badoual, C., Baglin, A.C., Barry, B., Bastit, V., Baujat, B., Benezery, K., Bensadoun, R.J., Benzerdjeb, N., Bernadach, M., Bertolus, C., Biet, A., Bodmer, D., Boisselier, P., Boulagnon-Rombi, C., Bozec, L., Grayeli, A.Bozorg, Brenet, E., Brugel, L., Calais, G., Calugaru, V., Camby, S., Casiraghi, O., Cassagnau, E., Castain, C., Castelli, J., Ceruse, P., Chabolle, F., Chevalier, D., Choussy, O., Clatot, F., Constans, J.M., Coste, A., Coste, F., Costes, V., Cottier, J.P., Coutte, A., Cristofari, J.P., Cupissol, D., Delgrande, J., Delord, J.P., Devauchelle, B., Digue, L., Dolivet, G., Doré, M., Duflo, S., Dufour, X., Dupin, C., Eker, E., Even, C., Evrard, C., Fabiano, E., Faivre, S., Fakhry, N., Ferrand, F.R., Frandon, J., Franetti, D., de Gabory, L., Galy, C., Garcier, M., Garrel, R., Gauthier, H., Gilain, L., Guihard, S., Guillerm, S., Halimi, C., Hans, S., Herman, P., Houessinon, A., Hourseau, M., Huguet, F., Jadaud, E., Jankowski, R., Jeanne, C., Jegoux, F., Juliéron, M., Kaci, R., Kaminsky, M.-C., de Kermadec, H., Kolb, F., Kreps, S., Laadhari, M., Saint Guily, J. Lacau, Laccoureye, L., Lae, M., Lagarde, F., Lagrange, A., Lallemant, B., Lamuraglia, M., Lang, P., Lapeyre, M., Lapierre, A., Cardon, A.Lasne, Le Tourneau, C., Lefebvre, G., Lefevre, M., Lelonge, Y., Leroy, X., Lesnik, M., Liem, X., Linassier, C., Maingon, P., Majoufre, C., Malard, O., Malouf, G., Marchand, C., Marie, J.-P., Maurina, T., Mauvais, O., Merol, J.-C., Michel, J., Mineur, G., Mirafzal, S., Mirghani, H., Modesto, A., Molinier-Blossier, S., de Monès, E., Morinière, S., Mouawad, F., Moya-Plana, A., Muller, L., Musat, E., Nguyen, F., Noel, G., Obongo-Anga, F.R., Onea, M., Orliac, H., Page, C., Patron, V., Pestre, J., Dang, N. Pham, Philouze, P., Poissonnet, G., Pons, C., Pouliquen, C., J.-M.Prades, Prevost, A., Queiros, C., Rahmani, A., Rambeau, A., Ramin, L., Renard, S., Siegfried, A., Righini, C.A., Rolland, F., Saada, E., Sacino, F., Salas, S., Saroul, N., Schultz, P., Simonaggio, A., Sterkers, O., Strunski, V., Sudaka, A., Xu-Shan, S., Taouachi, R., Tassart, M., Testelin, S., J.Thariat, David, M. Timar, Timochenko, A., Toussaint, B., Coste, E. Uro, Valette, G., Van den Abbele, T., Varoquaux, A., Vauleon, E., Vergez, S., Verillaud, B., Villa, J., Villepelet, A., Volondat, M., Vulquin, N., Wagner, I., Wassef, M., Webert, L., Wong, S., Alsugair, Ziyad, Lépine, Charles, Descotes, Françoise, Lanic, Marie-Delphine, Pissaloux, Daniel, Tirode, Franck, Lopez, Jonathan, Céruse, Philippe, Philouze, Pierre, Fieux, Maxime, Wassef, Michel, Baglin, Anne-Catherine, Mihaela, Onea, Castain, Claire, Sudaka, Anne, Uro-Coste, Emmanuelle, Champagnac, Anne, Costes-Martineau, Valérie, Laé, Marick, and Benzerdjeb, Nazim
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- 2024
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3. Vacuum challenges at the beam energy frontier
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Baglin, V., primary, Chiggiato, P., additional, and Kersevan, R., additional
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- 2023
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4. Characterization of a Molecularly Distinct Subset of Oncocytic Pleomorphic Adenomas/Myoepitheliomas Harboring Recurrent ZBTB47-AS1: PLAG1 Gene Fusion
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Alsugair, Ziyad, Perrot, Jimmy, Descotes, Françoise, Lopez, Jonathan, Champagnac, Anne, Pissaloux, Daniel, Castain, Claire, Onea, Mihaela, Céruse, Philippe, Philouze, Pierre, Lépine, Charles, Lanic, Marie-Delphine, Laé, Marick, Costes-Martineau, Valérie, Benzerdjeb, Nazim, Ala-Eddine, C., Aubry, K., Babin, E., Bach, C., Badoual, C., Baglin, A.C., Barry, B., Bastit, V., Baujat, B., Benezery, K., Bensadoun, R.J., Benzerdjeb, N., Bernadach, M., Bertolus, C., Biet, A., Bodmer, D., Boisselier, P., Boulagnon-Rombi, C., Bozec, L., Grayeli, A. Bozorg, Brenet, E., Brugel, L., Calais, G., Calugaru, V., Camby, S., Casiraghi, O., Cassagnau, E., Castain, C., Castelli, J., Ceruse, P., Chabolle, F., Chevalier, D., Choussy, O., Clatot, F., Constans, J.M., Coste, A., Coste, F., Costes, V., Cottier, J.P., Coutte, A., Cristofari, J.P., Cupissol, D., Delgrande, J., Delord, J.P., Devauchelle, B., Digue, L., Dolivet, G., Doré, M., Duflo, S., Dufour, X., Dupin, C., Eker, E., Even, C., Evrard, C., Fabiano, E., Faivre, S., Fakhry, N., Ferrand, F. R., Frandon, J., Franetti, D., de Gabory, L., Galy, C., Garcier, M., Garrel, R., Gauthier, H., Gilain, L., Guihard, S., Guillerm, S., Halimi, C., Hans, S., Herman, P., Houessinon, A., Hourseau, M., Huguet, F., Jadaud, E., Jankowski, R., Jeanne, C., Jegoux, F., Juliéron, M., Kaci, R., Kaminsky, M.-C., de Kermadec, H., Kolb, F., Kreps, S., Laadhari, M., Saint Guily, J. Lacau, Laccoureye, L., Lae, M., Lagarde, F., Lagrange, A., Lallemant, B., Lamuraglia, M., Lang, P., Lapeyre, M., Lapierre, A., Cardon, A. Lasne, Le Tourneau, C., Lefebvre, G, Lefevre, M., Lelonge, Y., Leroy, X., Lesnik, M., Liem, X., Linassier, C., Maingon, P., Majoufre, C., Malard, O., Malouf, G., Marchand, C., Marie, J.-P., Maurina, T., Mauvais, O., Merol, J.-C., Michel, J., Mineur, G., Mirafzal, S., Mirghani, H., Modesto, A., Molinier-Blossier, S., de Monès, E., Morinière, S., Mouawad, F., Moya-Plana, A, Muller, L., Musat, E., Nguyen, F., Noel, G., Obongo-Anga, F.R., Onea, M., Orliac, H., Page, C., Patron, V., Pestre, J., Dang, N. Pham, Philouze, P., Poissonnet, G., Pons, C., Pouliquen, C., Prades, J.-M., Prevost, A., Queiros, C., Rahmani, A., Rambeau, A., Ramin, L., Renard, S., Righini, C.A., Rolland, F., Saada, E., Sacino, F., Salas, S., Saroul, N., Schultz, P., Simonaggio, A., Sterkers, O., Strunski, V., Sudaka, A., Xu-Shan, S., Taouachi, R., Tassart, M., Testelin, S., Thariat, J., David, M. Timar, Timochenko, A., Toussaint, B., Coste, E. Uro, Valette, G., Van den Abbele, T., Varoquaux, A., Vauleon, E., Vergez, S., Verillaud, B., Villa, J., Villepelet, A., Volondat, M., Vulquin, N., Wagner, I., Wassef, M., Webert, L., and Wong, S.
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- 2024
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5. X-ray induced desorption and photochemistry in CO ice
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Dupuy, R., Bertin, M., Féraud, G., Romanzin, C., Putaud, T., Philippe, L., Michaut, X., Jeseck, P., Cimino, R., Baglin, V., and Fillion, J. -H.
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Physics - Chemical Physics ,Astrophysics - Earth and Planetary Astrophysics ,Astrophysics - Astrophysics of Galaxies - Abstract
We report an investigation of X-ray induced desorption of neutrals, cations and anions from CO ice. The desorption of neutral CO, by far the most abundant, is quantified and discussed within the context of its application to astrochemistry. The desorption of many different cations, including large cations up to the mass limit of the spectrometer, are observed. In contrast, the only desorbing anions detected are O$^-$ and C$^-$. The desorption mechanisms of all these species are discussed with the aid of their photodesorption spectrum. The evolution of the X-ray absorption spectrum shows significant chemical modifications of the ice upon irradiation, which along with the desorption of large cations gives a new insight into X-ray induced photochemistry in CO ice., Comment: Accepted in PCCP
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- 2021
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6. Forced labor and Transportation: Multi-disciplinary perspectives
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Kezban Yagci Sokat, Marisa Auguste, Christi Wigle, and Chris Baglin
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Forced labor ,Transportation ,Supply chain ,Human trafficking ,Modern slavery ,Transportation and communications ,HE1-9990 - Abstract
Transportation plays a key role in combating human trafficking. This paper discusses data from the 2021 National Outreach Survey for Transportation (NOST), from the first ever United States Department of Transportation Combating Human Trafficking in Transportation Award winning project. Survey data collected from transportation personnel, victim service providers, and trafficking survivors reinforces the documented perceptions, limitations, and challenges in understanding and combating forced labor discussed among frontline workers. Among 173 respondents working in various state DOT construction units, only 26 % feel slightly or very confident (19 % and 7 %, respectively) about identifying labor trafficking in their work environment. Participating transportation workers confirm specific training topics that may help to identify forced labor proximate to the work environment or within the community, transportation-related venues, and events. Respondents from multiple transport modes also provide valuable suggestions on how personnel and industry leaders can help combat human trafficking in supply chains. For the primarily U.S.-based transportation respondents, the most suggested strategy for encouraging companies to use products free from forced labor in their supply chains was high penalties (1,229 respondents), followed by loss of tax benefits (850 respondents) (total n = 1,766).
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- 2024
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7. Mechanism of Indirect Photon-induced Desorption at the Water Ice Surface
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Dupuy, R., Bertin, M., Féraud, G., Michaut, X., Marie-Jeanne, P., Jeseck, P., Philippe, L., Baglin, V., Cimino, R., Romanzin, C., and Fillion, J. -H.
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Physics - Chemical Physics - Abstract
Electronic excitations near the surface of water ice lead to the desorption of adsorbed molecules, through a so far debated mechanism. A systematic study of photon-induced indirect desorption, revealed by the spectral dependence of the desorption (7 to 13 eV), is conducted for Ar, Kr, N2, and CO adsorbed on H2O or D2O amorphous ices. The mass and isotopic dependence and the increase of intrinsic desorption efficiency with photon energy all point to a mechanism of desorption induced by collisions between adsorbates and energetic H or D atoms, produced by photodissociation of water. This constitutes a direct and unambiguous experimental demonstration of the mechanism of indirect desorption of weakly adsorbed species on water ice, and sheds new light on the possibility of this mechanism in other systems. It also has implications for the description of photon-induced desorption in astrochemical models., Comment: Supplemental Material available freely at https://journals.aps.org/prl/supplemental/10.1103/PhysRevLett.126.156001
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- 2021
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8. Vacuum-UV photodesorption from compact Amorphous Solid Water : photon energy, isotopic and temperature effects
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Fillion, Jean-Hugues, Dupuy, Rémi, Féraud, Géraldine, Romanzin, Claire, Philippe, Laurent, Putaud, Thomas, Baglin, Vincent, Cimino, Roberto, Marie-Jeanne, Patrick, Jeseck, Pascal, Michaut, Xavier, and Bertin, Mathieu
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Physics - Chemical Physics ,Astrophysics - Earth and Planetary Astrophysics ,Astrophysics - Astrophysics of Galaxies - Abstract
Vacuum-UV (VUV) photodesorption from water-rich ice mantles coating interstellar grains is known to play an important role in the gas-to-ice ratio in star- and planet-forming regions. Quantitative photodesorption yields from water ice are crucial for astrochemical models. We aim to provide the first quantitative photon-energy dependent photodesorption yields from water ice in the VUV. This information is important to understand the photodesorption mechanisms and to account for the variation of the yields under interstellar irradiation conditions. Experiments have been performed on the DESIRS beamline at the SOLEIL synchrotron, delivering tunable VUV light, using the SPICES (Surface Processes and ICES) set-up. Compact amorphous solid water ice (H$_2$O and D$_2$O) has been irradiated from 7 to 13.5 eV. Quantitative yields have been obtained by detection in the gas phase with mass-spectrometry for sample temperatures ranging from 15 K to 100 K. Photodesorption spectra of H$_2$O (D$_2$O), OH (OD), H$_2$ (D$_2$) and O$_2$ peak around 9-10 eV and decrease at higher energies. Average photodesorption yields of intact water at 15 K are 5 $\times$ 10$^{-4}$ molecule/photon for H$_2$O and 5 $\times$ 10$^{-5}$ molecule/photon for D$_2$O over the 7-13.5 eV range. The strong isotopic effect can be explained by a differential chemical recombination between OH (OD) and H (D) photofragments originating from lower kinetic energy available for the OH photofragments upon direct water photodissociation and/or possibly by an electronic relaxation process. It is expected to contribute to water fractionation during the building-up of the ice grain mantles in molecular clouds and to favor OH-poor chemical environment in comet-formation regions of protoplanetary disks. The yields of all the detected species except OH (OD) are enhanced above (70 $\pm$10) K, suggesting an ice restructuration at this temperature., Comment: Submitted to A&A. In revision
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- 2021
9. Photodesorption of Water Ices: Highlights from Recent Synchrotron Radiation Studies
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Fillion, Jean-Hugues, Dupuy, Rémi, Féraud, Géraldine, Romanzin, Claire, Marie-Jeanne, Patrick, Jeseck, Pascal, Baglin, Vincent, Cimino, Roberto, Michaut, Xavier, Bertin, Mathieu, Mennella, Vito, editor, and Joblin, Christine, editor
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- 2023
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10. Forced labor and Transportation: Multi-disciplinary perspectives
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Yagci Sokat, Kezban, Auguste, Marisa, Wigle, Christi, and Baglin, Chris
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- 2024
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11. Electron-stimulated desorption from molecular ices in the sub-keV regime
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Dupuy, Rémi, Haubner, Michal, Henrist, Bernard, Fillion, Jean-Hugues, and Baglin, Vincent
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Physics - Chemical Physics ,Physics - Accelerator Physics ,Physics - Applied Physics - Abstract
Electron-stimulated desorption (ESD) of cryosorbed molecules on surfaces is a process of relevance to fields as varied as vacuum dynamics in accelerators and astrochemistry. While desorption from such molecular systems induced by keV electrons and fast ions has been extensively studied, the sub-keV electron regime is comparatively little known. We measured and quantified electron-stimulated desorption from molecular ice systems (layers of N$_2$, CO, CO$_2$, Ar and H$_2$O/D$_2$O condensed at cryogenic temperatures) in the 150-2000 eV electron energy range. In this regime stopping power is no longer sufficient to explain the electron energy dependence of ESD yields. We introduce the notion of desorption-relevant depth, which characterizes the transition between two energy deposition regimes near the surface. We then apply this notion to the different systems, showing how ESD in the sub-keV regime can for example reveal the differences in species diffusion in crystalline and porous amorphous CO$_2$ ices., Comment: The following article has been accepted by the Journal of Applied Physics. After it is published, it will be found at https://publishing.aip.org/resources/librarians/products/journals/
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- 2020
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12. Cryopumping and Vacuum Systems
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Baglin, Vincent
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Physics - Instrumentation and Detectors ,Physics - Accelerator Physics - Abstract
The understanding of complex and/or large vacuum systems operating at cryogenic temperatures requires a specific knowledge of the vacuum science at such temperatures. At room temperature, molecules with a low binding energy to a surface are not pumped. However, at cryogenic temperatures, their sojourn time is significantly increased, thanks to the temperature reduction, which allow a "cryopumping". This lecture gives an introduction to the field of cryogenic vacuum, discussing surface desorption, sticking probability, thermal transpiration, adsorption isotherms, vapour pressure of usual gases, industrial surfaces and roughness factors. These aspects are illustrated with the case of the Large Hardon Collider explaining its beam screen and its cryosorber, leaks and beam vacuum system modelling in a cryogenic environment. Finally, operation of cryogenic beam vacuum systems is discussed for LHC and other cryogenic machines., Comment: 34 pages, contribution to the CAS - CERN Accelerator School: Vacuum for Particle Accelerators, 6-16 June 2017, Glumsl\"ov, Sweden
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- 2020
13. Desorption of neutrals, cations and anions from core-excited amorphous solid water
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Dupuy, R., Féraud, G., Bertin, M, Romanzin, C., Philippe, L., Putaud, T., Michaut, X., Cimino, R., Baglin, V., and Fillion, J. -H.
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Physics - Chemical Physics - Abstract
Core-excitation of water ice releases many different molecules and ions in the gas phase. Studying these desorbed species and the underlying mechanisms can provide useful information on the effects of X-ray irradiation in ice. We report a detailed study of the X-ray induced desorption of a number of neutral, cationic and anionic species from amorphous solid water. We discuss the desorption mechanisms, and the relative contributions of Auger and secondary electrons (X-ray induced Electron Stimulated Desorption) and initial excitation (\rev{direct desorption}) as well as the role of photochemistry. Anions are shown to desorb not just through processes linked with secondary electrons but also through direct dissociation of the core-excited molecule. The desorption spectra of oxygen ions (O$^+$, OH$^+$, H$_2$O$^+$, O$^-$, OH$^-$) give a new perspective on their previously reported very low desorption yields for most types of irradiation of water, showing that they mostly originate from the dissociation of photoproducts such as H$_2$O$_2$., Comment: Accepted in Journal of Chemical Physics
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- 2020
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14. Golf course living leads to a diet shift for American alligators
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Adam E. Rosenblatt, Robert Greco, Eli Beal, Joseph Colbert, Yank Moore, Victoria Baglin, and James C. Nifong
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barrier island ,crocodilian ,feeding pattern ,Georgia ,land use change ,predator ,Ecology ,QH540-549.5 - Abstract
Abstract Human‐driven land use change can fundamentally alter ecological communities, especially the diversity and abundance of large‐bodied predators. Yet, despite the important roles large‐bodied predators play in structuring communities through feeding, there have been only a few investigations of how the feeding patterns of large‐bodied predators change in human‐dominated landscapes. One group of large‐bodied predators that has been largely overlooked in the context of land use change is the crocodilians. To help fill these gaps, we studied the feeding patterns of juvenile American alligators (Alligator mississippiensis) on neighboring barrier islands on the southeast coast of Georgia, USA. Jekyll Island has multiple golf courses and substantial amounts of human activity, while Sapelo Island does not have any golf courses and a much smaller amount of human activity. We found that juvenile alligator populations on both islands ate the same types of prey but in vastly different quantities. Sapelo Island alligators primarily consumed crustaceans while alligators that lived on Jekyll Island's golf courses ate mostly insects/arachnids. Furthermore, the Jekyll Island alligators exhibited a much more generalist feeding pattern (individuals mostly ate the same types of prey in the same quantities) than the more specialized Sapelo Island alligators (diets were more varied across individuals). The most likely explanation for our results is that alligators living on golf courses have different habitat use patterns and have access to different prey communities relative to alligators in more natural habitats. Thus, land use change can strongly alter the feeding patterns of large‐bodied predators and, as a result, may affect their body condition, exposure to human‐made chemicals, and role within ecological communities.
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- 2023
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15. Reporting on human trafficking crimes: a national transportation survey
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Auguste, Marisa E., Sokat, Kezban Yagci, Wigle, Christi, and Baglin, Christine
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- 2024
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16. Photodesorption of Water Ices: Highlights from Recent Synchrotron Radiation Studies
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Fillion, Jean-Hugues, primary, Dupuy, Rémi, additional, Féraud, Géraldine, additional, Romanzin, Claire, additional, Marie-Jeanne, Patrick, additional, Jeseck, Pascal, additional, Baglin, Vincent, additional, Cimino, Roberto, additional, Michaut, Xavier, additional, and Bertin, Mathieu, additional
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- 2023
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17. The Animus of Identity: Shame
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Lee Baglin and Lee Baglin
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- 2023
18. Synchrotron radiation interaction with cryosorbed layers for astrochemical investigations
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Dupuy, Rémi, Bertin, Mathieu, Féraud, Géraldine, Michaut, Xavier, Putaud, Thomas, Philippe, Laurent, Jeseck, Pascal, Cimino, Roberto, Baglin, Vincent, Romanzin, Claire, and Fillion, Jean-Hugues
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Astrophysics - Astrophysics of Galaxies ,Physics - Accelerator Physics ,Physics - Chemical Physics - Abstract
Photon-stimulated desorption (PSD) is a process of interest for the two seemingly unrelated topics of accelerator vacuum dynamics and astrochemistry. Here we present an approach to studying PSD of interstellar ice analogs, i.e. condensed films of molecules of astrophysical interest at cryogenic temperatures, using synchrotron radiation. We present results obtained in the VUV range on various pure and layered ices, focusing on elucidating the desorption mechanisms, and results in the X-ray range for H$_2$O., Comment: Proceedings of the ECLOUD'18 6th workshop on electron-cloud effects (3-7 June 2018 La Biodola (Isola d'Elba) Italy). To be published as a CERN yellow report
- Published
- 2018
19. Electron conditioning of technical surfaces at cryogenic and room temperature in the 0–1 keV energy range
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Haubner, Michal, Baglin, Vincent, and Henrist, Bernard
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- 2023
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20. LHC Upgrades in preparation of Run 3
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Arduini, G., primary, Baglin, V., additional, Bartosik, H., additional, Bottura, L., additional, Bracco, C., additional, Bradu, B., additional, Bregliozzi, G., additional, Brodzinski, K., additional, Bruce, R., additional, Calviani, M., additional, Chiggiato, P., additional, Cruikshank, P., additional, Claudet, S., additional, Delikaris, D., additional, Fartoukh, S., additional, Garion, C., additional, Himmerlich, M., additional, Hostettler, M., additional, Iadarola, G., additional, Kostoglou, S., additional, Le Naour, S., additional, Lechner, A., additional, Lefevre, T., additional, Mether, L., additional, Papaphilippou, Y., additional, Petit, V., additional, Pojer, M., additional, Poyet, A., additional, Redaelli, S., additional, Rodriguez Mateos, F., additional, Rumolo, G., additional, Salvant, B., additional, Sanchez Galan, F., additional, Siemko, A., additional, Solfaroli-Camillocci, M., additional, Sterbini, G., additional, Taborelli, M., additional, Tavian, L., additional, Timko, H., additional, Tock, J.-Ph., additional, Verweij, A., additional, Wendt, M., additional, Wenninger, J., additional, Wollmann, D., additional, and Yin Vallgren, Ch., additional
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- 2024
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21. A Second-Generation (44-Channel) Suprachoroidal Retinal Prosthesis: A Single-Arm Clinical Trial of Feasibility
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Petoe, Matthew A., primary, Abbott, Carla J., additional, Titchener, Samuel A., additional, Kolic, Maria, additional, Kentler, William G., additional, Nayagam, David A.X., additional, Baglin, Elizabeth K., additional, Kvansakul, Jessica, additional, Barnes, Nick, additional, Walker, Janine G., additional, Karapanos, Lewis, additional, McGuinness, Myra B., additional, Ayton, Lauren N., additional, Luu, Chi D., additional, Allen, Penelope J., additional, Blamey, Peter J., additional, Briggs, Robert J., additional, Burns, Owen, additional, Epp, Stephanie B., additional, Johnson, Dean, additional, McDermott, Hugh J., additional, McGowan, Ceara, additional, Millard, Rodney E., additional, Seligman, Peter M., additional, Shepherd, Robert K., additional, Shivdasani, Mohit N., additional, Sinclair, Nicholas C., additional, Thien, Patrick C., additional, Villalobos, Joel, additional, Williams, Chris E., additional, Yeoh, Jonathan, additional, and Young, Kiera A., additional
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- 2024
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22. X-ray photodesorption from water ice in protoplanetary disks and X-ray dominated regions
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Dupuy, Rémi, Bertin, Mathieu, Féraud, Géraldine, Hassenfratz, Maud, Michaut, Xavier, Putaud, Thomas, Philippe, Laurent, Jeseck, Pascal, Angelucci, Marco, Cimino, Roberto, Baglin, Vincent, Romanzin, Claire, and Fillion, Jean-Hugues
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Astrophysics - Astrophysics of Galaxies ,Physics - Chemical Physics - Abstract
Water is the main constituent of interstellar ices, and it plays a key role in the evolution of many regions of the interstellar medium, from molecular clouds to planet-forming disks. In cold regions of the ISM, water is expected to be completely frozen out onto the dust grains. Nonetheless, observations indicate the presence of cold water vapor, implying that non-thermal desorption mechanisms are at play. Photodesorption by UV photons has been proposed to explain these observations, with the support of extensive experimental and theoretical work on ice analogues. In contrast, photodesorption by X-rays, another viable mechanism, has been little studied. The potential of this process to desorb key molecules, such as water, intact rather than fragmented or ionised, remains unexplored. We experimentally investigated X-ray photodesorption from water ice, monitoring all desorbing species. We find that desorption of neutral water is efficient, while ion desorption is minor. We derive for the first time yields that can be implemented in astrochemical models. These results open up the possibility of taking into account the X-ray photodesorption process in the modelling of protoplanetary disks or X-ray dominated regions.
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- 2018
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23. Collector-based measurement of gas desorption and secondary electron emission induced by 0–1.4 keV electrons from LHC-grade copper at 15 K
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Haubner, Michal, Baglin, Vincent, and Henrist, Bernard
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- 2022
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24. The efficient photodesorption of nitric oxide (NO) ices A laboratory astrophysics study
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Dupuy, R., Féraud, G., Bertin, M., Michaut, X., Putaud, T., Jeseck, P., Philippe, L., Romanzin, C., Baglin, V., Cimino, R., and Fillion, J. -H.
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Astrophysics - Astrophysics of Galaxies ,Astrophysics - Solar and Stellar Astrophysics ,Physics - Chemical Physics - Abstract
The study and quantification of UV photon-induced desorption of frozen molecules furthers our understanding of the chemical evolution of cold interstellar regions. Nitric oxide (NO) is an important intermediate species in both gas-phase and solid-phase chemical networks. In this work, we present quantitative measurements of the photodesorption of a pure NO ice.We used the tunable monochromatic synchrotron light of the DESIRS beamline of the SOLEIL facility near Paris to irradiate NO ices in the 6 - 13.6 eV range and measured desorption by quadrupole mass spectrometry.We find that NO photodesorption is very efficient, its yield being around 1e-2 molecule per incident photon for UV fields relevant to the diffuse and dense interstellar medium. We discuss the extrapolation of our results to an astrophysical context and we compare photodesorption of NO to previously studied molecules., Comment: A&A, Accepted
- Published
- 2017
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25. FCC-hh: The Hadron Collider
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Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Abelleira Fernandez, J, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Alemany Fernandez, RM, Alexahin, Y, Alía, RG, Alioli, S, Alipour Tehrani, N, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, A, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
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Mathematical Sciences ,Physical Sciences ,Applied Physics ,Fluids & Plasmas - Abstract
In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100 km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100 TeV. Its unprecedented centre of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries.
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- 2019
26. HE-LHC: The High-Energy Large Hadron Collider
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Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Abelleira Fernandez, J, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Alemany Fernandez, RM, Alexahin, Y, Alía, RG, Alioli, S, Alipour Tehrani, N, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, A, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
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Mathematical Sciences ,Physical Sciences ,Applied Physics ,Fluids & Plasmas - Abstract
In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100 km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100 TeV. Its unprecedented centre-of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries.
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- 2019
27. FCC-ee: The Lepton Collider
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Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Abelleira Fernandez, J, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Alemany Fernandez, RM, Alexahin, Y, Alía, RG, Alioli, S, Alipour Tehrani, N, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, A, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
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Nuclear and Plasma Physics ,Particle and High Energy Physics ,Physical Sciences ,Mathematical Sciences ,Applied Physics ,Fluids & Plasmas ,Mathematical sciences ,Physical sciences - Abstract
In response to the 2013 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) study was launched, as an international collaboration hosted by CERN. This study covers a highest-luminosity high-energy lepton collider (FCC-ee) and an energy-frontier hadron collider (FCC-hh), which could, successively, be installed in the same 100 km tunnel. The scientific capabilities of the integrated FCC programme would serve the worldwide community throughout the 21st century. The FCC study also investigates an LHC energy upgrade, using FCC-hh technology. This document constitutes the second volume of the FCC Conceptual Design Report, devoted to the electron-positron collider FCC-ee. After summarizing the physics discovery opportunities, it presents the accelerator design, performance reach, a staged operation scenario, the underlying technologies, civil engineering, technical infrastructure, and an implementation plan. FCC-ee can be built with today’s technology. Most of the FCC-ee infrastructure could be reused for FCC-hh. Combining concepts from past and present lepton colliders and adding a few novel elements, the FCC-ee design promises outstandingly high luminosity. This will make the FCC-ee a unique precision instrument to study the heaviest known particles (Z, W and H bosons and the top quark), offering great direct and indirect sensitivity to new physics.
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- 2019
28. FCC Physics Opportunities
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Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Fernandez, J Abelleira, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Fernandez, RM Alemany, Alexahin, Y, Alía, RG, Alioli, S, Tehrani, N Alipour, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, Ara, Apyan, Arm, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
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Nuclear and Plasma Physics ,Particle and High Energy Physics ,Physical Sciences ,Atomic ,Molecular ,Nuclear ,Particle and Plasma Physics ,Quantum Physics ,Nuclear & Particles Physics ,Astronomical sciences ,Atomic ,molecular and optical physics ,Particle and high energy physics - Abstract
We review the physics opportunities of the Future Circular Collider, covering its e+e-, pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of electroweak, Higgs and strong interactions, the top quark and flavour, as well as phenomena beyond the Standard Model. We highlight the synergy and complementarity of the different colliders, which will contribute to a uniquely coherent and ambitious research programme, providing an unmatchable combination of precision and sensitivity to new physics.
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- 2019
29. FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1
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Abada, A, Abbrescia, M, AbdusSalam, SS, Abdyukhanov, I, Fernandez, JA, Abramov, A, Aburaia, M, Acar, AO, Adzic, PR, Agrawal, P, Aguilar-Saavedra, JA, Aguilera-Verdugo, JJ, Aiba, M, Aichinger, I, Aielli, G, Akay, A, Akhundov, A, Aksakal, H, Albacete, JL, Albergo, S, Alekou, A, Aleksa, M, Aleksan, R, Fernandez, RMA, Alexahin, Y, Alía, RG, Alioli, S, Tehrani, NA, Allanach, BC, Allport, PP, Altınlı, M, Altmannshofer, W, Ambrosio, G, Amorim, D, Amstutz, O, Anderlini, L, Andreazza, A, Andreini, M, Andriatis, A, Andris, C, Andronic, A, Angelucci, M, Antinori, F, Antipov, SA, Antonelli, M, Antonello, M, Antonioli, P, Antusch, S, Anulli, F, Apolinário, L, Apollinari, G, Apollonio, A, Appelö, D, Appleby, RB, Apyan, A, Arbey, A, Arbuzov, A, Arduini, G, Arı, V, Arias, S, Armesto, N, Arnaldi, R, Arsenyev, SA, Arzeo, M, Asai, S, Aslanides, E, Aßmann, RW, Astapovych, D, Atanasov, M, Atieh, S, Attié, D, Auchmann, B, Audurier, A, Aull, S, Aumon, S, Aune, S, Avino, F, Avrillaud, G, Aydın, G, Azatov, A, Azuelos, G, Azzi, P, Azzolini, O, Azzurri, P, Bacchetta, N, Bacchiocchi, E, Bachacou, H, Baek, YW, Baglin, V, Bai, Y, Baird, S, Baker, MJ, Baldwin, MJ, Ball, AH, Ballarino, A, Banerjee, S, Barber, DP, Barducci, D, and Barjhoux, P
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Quantum Physics ,Atomic ,Molecular ,Nuclear ,Particle and Plasma Physics ,Nuclear & Particles Physics ,Atomic ,Molecular ,Nuclear ,Particle and Plasma Physics - Abstract
We review the physics opportunities of the Future Circular Collider, covering its e+e-, pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of electroweak, Higgs and strong interactions, the top quark and flavour, as well as phenomena beyond the Standard Model. We highlight the synergy and complementarity of the different colliders, which will contribute to a uniquely coherent and ambitious research programme, providing an unmatchable combination of precision and sensitivity to new physics.
- Published
- 2019
30. Engagement d’étudiants de cinquième année de pharmacie dans leurs activités pharmaceutiques, académiques et salariées, au cours de la première période de confinement liée à la pandémie de COVID-19 (16 mars–11 mai 2020)
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Spiesser-Robelet, L., Baglin, I., Moal, F., Lagarce, F., and Eveillard, M.
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- 2022
- Full Text
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31. Vacuum System
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Baglin, V., Chiggiato, P., Cruikshank, P., Gallilee, M., Garion, C., and Kersevan, R.
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Physics - Accelerator Physics - Abstract
Chapter 12 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up a new energy frontier for exploration in 2010, it has gathered a global user community of about 7,000 scientists working in fundamental particle physics and the physics of hadronic matter at extreme temperature and density. To sustain and extend its discovery potential, the LHC will need a major upgrade in the 2020s. This will increase its luminosity (rate of collisions) by a factor of five beyond the original design value and the integrated luminosity (total collisions created) by a factor ten. The LHC is already a highly complex and exquisitely optimised machine so this upgrade must be carefully conceived and will require about ten years to implement. The new configuration, known as High Luminosity LHC (HL-LHC), will rely on a number of key innovations that push accelerator technology beyond its present limits. Among these are cutting-edge 11-12 tesla superconducting magnets, compact superconducting cavities for beam rotation with ultra-precise phase control, new technology and physical processes for beam collimation and 300 metre-long high-power superconducting links with negligible energy dissipation. The present document describes the technologies and components that will be used to realise the project and is intended to serve as the basis for the detailed engineering design of HL-LHC., Comment: 11 pages, chapter 12 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report
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- 2017
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32. Demographic Predictors of Students' Science Participation over the Age of 16: An Australian Case Study
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Cooper, Grant, Berry, Amanda, and Baglin, James
- Abstract
Using the Longitudinal Surveys of Australian Youth (LSAY) data, this paper aimed to examine if, and to what extent, demographic factors predict students' participation in science over the age of 16 (post-16). While all the students participating in this study are attending Australian schools, the comprehensiveness of these datasets, together with inclusion of studies from around the world provides a useful reference point for an international audience. Over 7000 students are included in the analysis of this paper. Characteristics of focus in this paper include groups who have been identified as being underrepresented in past studies including Indigenous students, those from lower-socio-economic status (SES) backgrounds, sex differences and immigrants. Among the factors tested, Indigenous status was the strongest negative predictor of post-16 science participation. SES was also a relatively strong predictor of post-16 science participation. Compared to students categorised with an Australian-ancestry, first-generation and foreign-background students were more likely to participate in post-16 science. The findings of this study contribute to existing research on debates about equity and trends in science participation.
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- 2020
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33. An experience of multidisciplinary tutorials sessions about antibiotics in the third year of pharmacy studies in Angers, France: learning assessment and evaluation of students’ feelings by a mixed approach
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Taisne, Audrey, primary, Legeay, Samuel, additional, Baglin, Isabelle, additional, Duval, Olivier, additional, and Eveillard, Matthieu, additional
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- 2024
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34. Modelling User Influence and Rumor Propagation on Twitter using Hawkes Processes.
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H. Ruda Nie, Xiuzhen Zhang 0001, Minyi Li 0001, Anil Dolgun, and James Baglin
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- 2020
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35. Accelerator Engineering and Technology: Accelerator Technology
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Bordry, F., Bottura, L., Milanese, A., Tommasini, D., Jensen, E., Lebrun, Ph., Tavian, L., Burnet, J. P., Bastos, M. Cerqueira, Baglin, V., Jimenez, J. M., Jones, R., Lefevre, T., Schmickler, H., Barnes, M. J., Borburgh, J., Mertens, V., Aβmann, R. W., Redaelli, S., Missiaen, D., Myers, Stephen, editor, and Schopper, Herwig, editor
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- 2020
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36. The CoRoT Legacy Book
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CoRot Team, Annie Baglin, CoRot Team - Coord. By Annie Baglin and CoRot Team, Annie Baglin, CoRot Team - Coord. By Annie Baglin
- Published
- 2021
37. Mucoepidermoid carcinoma of salivary glands: A French Network of Rare Head and Neck Tumors (REFCOR) prospective study of 292 cases
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Albert, S., Andry, G., Babin, E., Bach, C., Badet, J.-M., Badoual, C., Baglin, A.C., Banal, A., Barry, B., Baudin, E., Baujat, B., Bensadoun, R.J., Bertolus, C., Bessède, J.-P., Blanchard, D., Borel, C., Bozorg-Grayeli, A., Breheret, R., Breton, P., Brugel, L., Calais, G., Casiraghi, O., Cassagnau, E., Castillo, L., Ceruse, P., Chabolle, F., Chevalier, D., Chobaut, J.C., Choussy, O., Cosmidis, A., Coste, A., Costes, V., Crampette, L., Darrouzet, V., Demez, P., Dessi, P., Devauchelle, B., Dolivet, G., Dubrulle, F., Duflo, S., Dufour, X., Faivre, S., Fakhry, N., Ferron, C., Floret, F., de Gabory, L., Garrel, R., Geoffrois, L., Gilain, L., Giovanni, A., Girod, A., Guerrier, B., Hans, S., Herman, P., Hofman, P., Housset, M., Jankowski, R., Jegoux, F., Juliéron, M., Kaminsky, M.-C., Kolb, F., St Guily, J. Lacau, Laccoureye, L., Lallemant, B., Lang, P., Lartigau, E., Lavieille, J.-P., Lefevre, M., Leroy, X., Malard, O., Massip, F., Mauvais, O., Merol, J.-C., Michel, J., Mom, T., Morinière, S., de Monès, E., Moulin, G., Noel, G., Poissonnet, G., Prades, J.-M., Radulesco, T., de Raucourt, D., Reyt, E., Righini, C., Robin, Y. Marie, Rolland, F., Ruhin, B., Sarroul, N., Schultz, P., Serrano, E., Sterkers, O., Strunski, V., Sudaka, A., Tassart, M., Testelin, S., Thariat, J., Timochenko, A., Toussaint, B., Coste, E. Uro, Valette, G., Van den Abbeele, T., Varoquaux, A., Veillon, F., Vergez, S., Wassef, M., Dahan, Laurie Saloner, Giorgi, Roch, Vergez, Sébastien, Le Taillandier de Gabory, Ludovic, Costes-Martineau, Valérie, Herman, Philippe, Poissonnet, Gilles, Mauvais, Olivier, Malard, Olivier, Garrel, Renaud, Uro-Coste, Emmanuelle, Barry, Béatrix, Bach, Christine, Chevalier, Dominique, Mouawad, Francois, Merol, Jean-Claude, Bastit, Vianney, Thariat, Juliette, Gilain, Laurent, Dufour, Xavier, Righini, Christian-Adrien, Moya-Plana, Antoine, Even, Caroline, Radulesco, Thomas, Michel, Justin, Baujat, Bertrand, and Fakhry, Nicolas
- Published
- 2021
- Full Text
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38. Galactic Archaeology with asteroseismology and spectroscopy: Red giants observed by CoRoT and APOGEE
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Anders, F., Chiappini, C., Rodrigues, T. S., Miglio, A., Montalbán, J., Mosser, B., Girardi, L., Valentini, M., Noels, A., Morel, T., Johnson, J. A., Schultheis, M., Baudin, F., Peralta, R. de Assis, Hekker, S., Themeßl, N., Kallinger, T., García, R. A., Mathur, S., Baglin, A., Santiago, B. X., Martig, M., Minchev, I., Steinmetz, M., da Costa, L. N., Maia, M. A. G., Prieto, C. Allende, Cunha, K., Beers, T. C., Epstein, C., Pérez, A. E. García, García-Hernández, D. A., Harding, P., Holtzman, J., Majewski, S. R., Mészáros, Sz., Nidever, D., Pan, K., Pinsonneault, M., Schiavon, R. P., Schneider, D. P., Shetrone, M. D., Stassun, K., Zamora, O., and Zasowski, G.
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Astrophysics - Astrophysics of Galaxies ,Astrophysics - Solar and Stellar Astrophysics - Abstract
With the advent of the space missions CoRoT and Kepler, it has become feasible to determine precise asteroseismic masses and ages for large samples of red-giant stars. In this paper, we present the CoRoGEE dataset -- obtained from CoRoT lightcurves for 606 red giant stars in two fields of the Galactic disc which have been co-observed for an ancillary project of APOGEE. We have used the Bayesian parameter estimation code PARAM to calculate distances, extinctions, masses, and ages for these stars in a homogeneous analysis, resulting in relative statistical uncertainties of $\sim2\%$ in distance, $\sim4\%$ in radius, $\sim9\%$ in mass and $\sim25\%$ in age. We also assess systematic age uncertainties due to different input physics and mass loss. We discuss the correlation between ages and chemical abundance patterns of field stars over a large radial range of the Milky Way's disc (5 kpc $
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- 2016
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39. HD 41641: A classical $\delta$ Sct-type pulsator with chemical signatures of an Ap star
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Escorza, A., Zwintz, K., Tkachenko, A., Van Reeth, T., Ryabchikova, T., Neiner, C., Poretti, E., Rainer, M., Michel, E., Baglin, A., and Aerts, C.
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Astrophysics - Solar and Stellar Astrophysics - Abstract
Among the known groups of pulsating stars, $\delta$ Sct stars are one of the least understood. Theoretical models do not predict the oscillation frequencies that observations reveal. Complete asteroseismic studies are necessary to improve these models and better understand the internal structure of these targets. We study the $\delta$ Sct star HD 41641 with the ultimate goal of understanding its oscillation pattern. The target was simultaneously observed by the CoRoT space telescope and the HARPS high-resolution spectrograph. The photometric data set was analyzed with the software package PERIOD04, while FAMIAS was used to analyze the line profile variations. The method of spectrum synthesis was used for spectroscopically determining the fundamental atmospheric parameters and individual chemical abundances. A total of 90 different frequencies was identified and analyzed. An unambiguous identification of the azimuthal order of the surface geometry could only be provided for the dominant p-mode, which was found to be a nonradial prograde mode with m = +1. Using $T_\mathrm{eff}$ and $\log g$, we estimated the mass, radius, and evolutionary stage of HD 41641. We find HD 41641 to be a moderately rotating, slightly evolved $\delta$ Sct star with subsolar overall atmospheric metal content and unexpected chemical peculiarities. HD 41641 is a pure $\delta$ Sct pulsator with p-mode frequencies in the range from 10 d$^{-1}$ to 20 d$^{-1}$. This pulsating star presents chemical signatures of an Ap star and rotational modulation due to surface inhomogeneities, which we consider indirect evidence of the presence of a magnetic field., Comment: 11 pages, 11 figures, accepted for publication in A&A
- Published
- 2016
- Full Text
- View/download PDF
40. Rotation period distribution of CoRoT and Kepler Sun-like stars
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Leão, I. C., Pasquini, L., Lopes, C. E. Ferreira, Neves, V., Valcarce, A. A. R., de Oliveira, L. L. A., da Silva, D. Freire, de Freitas, D. B., Martins, B. L. Canto, Janot-Pacheco, E., Baglin, A., and De Medeiros, J. R.
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Astrophysics - Solar and Stellar Astrophysics - Abstract
We study the distribution of the photometric rotation period (Prot), which is a direct measurement of the surface rotation at active latitudes, for three subsamples of Sun-like stars: one from CoRoT data and two from Kepler data. We identify the main populations of these samples and interpret their main biases specifically for a comparison with the solar Prot. Prot and variability amplitude (A) measurements were obtained from public CoRoT and Kepler catalogs combined with physical parameters. Because these samples are subject to selection effects, we computed synthetic samples with simulated biases to compare with observations, particularly around the location of the Sun in the HR diagram. Theoretical grids and empirical relations were used to combine physical parameters with Prot and A. Biases were simulated by performing cutoffs on the physical and rotational parameters in the same way as in each observed sample. A crucial cutoff is related with the detectability of the rotational modulation, which strongly depends on A. The synthetic samples explain the observed Prot distributions of Sun-like stars as having two main populations: one of young objects (group I, with ages younger than ~1 Gyr) and another of MS and evolved stars (group II, with ages older than ~1 Gyr). The proportions of groups I and II in relation to the total number of stars range within 64-84% and 16-36%, respectively. Hence, young objects abound in the distributions, producing the effect of observing a high number of short periods around the location of the Sun in the HR diagram. Differences in the Prot distributions between the CoRoT and Kepler Sun-like samples may be associated with different Galactic populations. Overall, the synthetic distribution around the solar period agrees with observations, which suggests that the solar rotation is normal with respect to Sun-like stars within the accuracy of current data., Comment: 13 pages, 8 figures, A&A accepted
- Published
- 2015
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41. HL-LHC IT STRING: Status and Perspectives
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Bajko, M., Baglin, V., Ballarino, A., Bednarek, M. J., Bertolasi, S., Bertone, C., Blanchard, S., Bozzini, D., Coulot, E., Coupat, C., Cruikshank, P., Dangelo, Giorgio, Dragoni, F., Fessia, P., Gascon, J. C., Girardot, G., Heredia Garcia, Nicolas, Herty, A., Kosmicki, A., Lees, A. J., e Naour, S., Nowak, E., Maan, W., Martinez Selles, Alejandro, Martino, M., Metselaar, J., Pojer, M., Otto, T., Rolando, G., Pelletier, S., Perin, A., Piednoir, D., Richards, E., Rodriguez Perez, Marta, Santos, N. Dos, Thiesen, H., Todesco, E., Yammine, S., Zerlauth, M., Zawilinski, J., Vergara Fernandez, Estrella, and Wollmann, D.
- Abstract
The HL-LHC IT STRING, an integrated test stand for the major components of the HL-LHC Inner Triplet (IT) zone, is in its construction phase in a surface building at CERN. The main motivation is to study and validate the collective behavior of the different systems: magnets, circuit protection, cryogenics for magnets and superconducting link, magnet powering, vacuum, alignment, and interconnections between magnets and superconducting link. During the past two years, the major focus has been on the technical infrastructure definition and implementation, while preparing the installation sequences and procedures for the major elements. The String Validation Program (SVP) has been agreed with the HL-LHC Work Packages, allowing to set up a joint and optimized test program and to integrate it in a schedule. In this paper we describe the IT String installations and describe the main differences between the HL-LHC IT String and the future HL-LHC machine. The main line of the test program and the motivation of a full thermal cycle with a cost benefit analysis will be presented.
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- 2024
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42. Improving Your Exploratory Factor Analysis for Ordinal Data: A Demonstration Using FACTOR
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Baglin, James
- Abstract
Exploratory factor analysis (EFA) methods are used extensively in the field of assessment and evaluation. Due to EFA's widespread use, common methods and practices have come under close scrutiny. A substantial body of literature has been compiled highlighting problems with many of the methods and practices used in EFA, and, in response, many guidelines have been proposed with the aim to improve application. Unfortunately, implementing recommended EFA practices has been restricted by the range of options available in commercial statistical packages and, perhaps, due to an absence of clear, practical "how-to" demonstrations. Consequently, this article describes the application of methods recommended to get the most out of your EFA. The article focuses on dealing with the common situation of analysing ordinal data as derived from Likert-type scales. These methods are demonstrated using the free, stand-alone, easy-to-use and powerful EFA package FACTOR (http://psico.fcep.urv.es/utilitats/factor/, Lorenzo-Seva & Ferrando, 2006). The demonstration applies the recommended techniques using an accompanying dataset, based on the Big 5 personality test. The outcomes obtained by the EFA using the recommended procedures through FACTOR are compared to the default techniques currently available in SPSS.
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- 2014
43. CoRoT space photometry of seven Cepheids
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Poretti, Ennio, Borgne, Jean-Francois Le, Rainer, Monica, Baglin, Annie, Benko, Jozsef, Debosscher, Jonas, and Weiss, Werner W.
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Astrophysics - Solar and Stellar Astrophysics - Abstract
A few Galactic classical Cepheids were observed in the programmes of space missions as Coriolis, MOST and Kepler. An appealing opportunity was to detect additional nonradial modes, thus opening the possibility to perform asteroseismic studies and making the pulsational content of Galactic Cepheids more similar to that of Magellanic Clouds ones. However, only hints of cycle-to-cycle variations were found, without any strict periodicity. In this context the potential of the CoRoT exoplanetary data base was not fully exploited despite the wide area covered on the Galactic plane. Therefore, we investigated all the candidate Cepheids pointed out by the automatic classification of the CoRoT curves. At the end we could identify seven bona-fide Cepheids. The light curves were investigated to remove some instrumental effects. The frequency analysis was particularly delicate since these small effects can be enhanced by the large amplitude, resulting in the presence of significant, but spurious, peaks in the power spectrum. Indeed, the careful evaluation of a very attracting peak in the spectra of CoRoT 0102618121, allowed us to certify its spurious origin. Once that the instrumental effects were properly removed, no additional mode was detected. On the other hand, cycle-to-cycle variations of the Fourier parameters were observed, but very small and always within 3 sigma. Among the seven Cepheids, there are two Pop. I first-overtone pulsators, four Pop. I fundamental mode pulsators, and one Pop. II star. The CoRoT colours allowed us to measure that times of maximum brightness occur a little earlier (about 0.01 period) at short wavelengths than at long ones., Comment: Accepted for publication in MNRAS. 14 pages, 12 figures, 4 tables. Light-curve solutions reported in Appendix A
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- 2015
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44. Transiting exoplanets from the CoRoT space mission XXVIII. CoRoT-33b, an object in the brown dwarf desert with 2:3 commensurability with its host star
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Csizmadia, Sz., Hatzes, A., Gandolfi, D., Deleuil, M., Bouchy, F., Fridlund, M., Szabados, L., Parviainen, H., Cabrera, J., Aigrain, S., Alonso, R., Almenara, J. M., Baglin, A., Bordé, P., Bonomo, A. S., Deeg, H. J., Dıaz, R. F., Erikson, A., Ferraz-Mello, S., Santos, M. Tadeu dos, Guenther, E. W., Guillot, T., Grziwa, S., Hébrard, G., Klagyivik, P., Ollivier, M., Pätzold, M., Rauer, H., Rouan, D., Santerne, A., Schneider, J., Mazeh, T., Wuchterl, G., Carpano, S., and Ofir, A.
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Astrophysics - Earth and Planetary Astrophysics - Abstract
We report the detection of a rare transiting brown dwarf with a mass of 59 M_Jup and radius of 1.1 R_Jup around the metal-rich, [Fe/H] = +0.44, G9V star CoRoT-33. The orbit is eccentric (e = 0.07) with a period of 5.82 d. The companion, CoRoT-33b, is thus a new member in the so-called brown dwarf desert. The orbital period is within 3% to a 3:2 resonance with the rotational period of the star. CoRoT-33b may be an important test case for tidal evolution studies. The true frequency of brown dwarfs close to their host stars (P < 10 d) is estimated to be approximately 0.2% which is about six times smaller than the frequency of hot Jupiters in the same period range. We suspect that the frequency of brown dwarfs declines faster with decreasing period than that of giant planets., Comment: 13 pages, 8 figures, accepted for publication in A&A
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- 2015
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45. The variability behavior of CoRoT M-giant Stars
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Lopes, C. E. Ferreira, Neves, V., Leão, I. C., de Freitas, D. B., Martins, B. L. Canto, da Costa, A. D., Paz-Chinchón, F., Chagas, M. L. Das, Baglin, A., Janot-Pacheco, E., and De Medeiros, J. R.
- Subjects
Astrophysics - Solar and Stellar Astrophysics - Abstract
For 6 years the Convection, Rotation, and Planetary Transits (CoRoT) space mission has acquired photometric data from more than one hundred thousand point sources towards and directly opposite from the inner and outer regions of the Galaxy. The high temporal resolution of the CoRoT data combined with the wide time span of the observations has enabled the study of short and long time variations in unprecedented detail. From the initial sample of 2534 stars classified as M-giants in the CoRoT databasis, we selected 1428 targets that exhibit well defined variability, using visual inspection. The variability period and amplitude of C1 stars (stars having Teff < 4200 K) were computed using Lomb-Scargle and harmonic fit methods. The trends found in the V-I vs J-K color-color diagram are in agreement with standard empirical calibrations for M-giants. The sources located towards the inner regions of the Galaxy are distributed throughout the diagram while the majority of the stars towards the outer regions of the Galaxy are spread between the calibrations of M-giants and the predicted position for Carbon stars. The stars classified as supergiants follow a different sequence from the one found for giant stars. We also performed a KS test of the period and amplitude of stars towards the inner and outer regions of the Galaxy. We obtained a low probability that the two samples come from the same parent distribution. The observed behavior of the period-amplitude and period-Teff diagrams are, in general, in agreement with those found for Kepler sources and ground based photometry, with pulsation being the dominant cause responsible for the observed modulation. We also conclude that short-time variations on M-Giant stars do not exist orare very rare and the few cases we found are possibly related to biases or background stars., Comment: 11 pages, 6 figures
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- 2015
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46. Models of red giants in the CoRoT asteroseismology fields combining asteroseismic and spectroscopic constraints
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Lagarde, N., Miglio, A., Eggenberger, P., Morel, T., Montalbán, J., Mosser, B., Rodrigues, T. S., Girardi, L., Rainer, M., Poretti, E., Barban, C., Hekker, S., Kallinger, T., Valentini, M., Carrier, F., Hareter, M., Mantegazza, L., Elsworth, Y., Michel, E., and Baglin, A.
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Astrophysics - Solar and Stellar Astrophysics - Abstract
Context. The availability of asteroseismic constraints for a large sample of red giant stars from the CoRoT and Kepler missions paves the way for various statistical studies of the seismic properties of stellar populations. Aims. We use the first detailed spectroscopic study of 19 CoRoT red-giant stars (Morel et al 2014) to compare theoretical stellar evolution models to observations of the open cluster NGC 6633 and field stars. Methods. In order to explore the effects of rotation-induced mixing and thermohaline instability, we compare surface abundances of carbon isotopic ratio and lithium with stellar evolution predictions. These chemicals are sensitive to extra-mixing on the red-giant branch. Results. We estimate mass, radius, and distance for each star using the seismic constraints. We note that the Hipparcos and seismic distances are different. However, the uncertainties are such that this may not be significant. Although the seismic distances for the cluster members are self consistent they are somewhat larger than the Hipparcos distance. This is an issue that should be considered elsewhere. Models including thermohaline instability and rotation-induced mixing, together with the seismically determined masses can explain the chemical properties of red-giants targets. However, with this sample of stars we cannot perform stringent tests of the current stellar models. Tighter constraints on the physics of the models would require the measurement of the core and surface rotation rates, and of the period spacing of gravity-dominated mixed modes. A larger number of stars with longer times series, as provided by Kepler or expected with Plato, would help for ensemble asteroseismology., Comment: Accepted 03/05/2015
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- 2015
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47. Transiting exoplanets from the CoRoT space mission XXVII. CoRoT-28b, a planet orbiting an evolved star, and CoRoT-29b, a planet showing an asymmetric transit
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Cabrera, J., Csizmadia, Sz., Montagnier, G., Fridlund, M., Eiff, M. Ammler-von, Chaintreuil, S., Damiani, C., Deleuil, M., Ferraz-Mello, S., Ferrigno, A., Gandolfi, D., Guillot, T., Guenther, E. W., Hatzes, A., Hébrard, G., Klagyivik, P., Parviainen, H., Pasternacki, Th., Pätzold, M., Sebastian, D., Santos, M. Tadeu dos, Wuchterl, G., Aigrain, S., Alonso, R., Almenara, J. -M., Armstrong, J. D., Auvergne, M., Baglin, A., Barge, P., Barros, S. C. C., Bonomo, A. S., Bordé, P., Bouchy, F., Carpano, S., Chaffey, C., Deeg, H. J., Díaz, R. F., Dvorak, R., Erikson, A., Grziwa, S., Korth, J., Lammer, H., Lindsay, C., Mazeh, T., Moutou, C., Ofir, A., Ollivier, M., Pallé, E., Rauer, H., Rouan, D., Samuel, B., Santerne, A., and Schneider, J.
- Subjects
Astrophysics - Earth and Planetary Astrophysics - Abstract
Context. We present the discovery of two transiting extrasolar planets by the satellite CoRoT. Aims. We aim at a characterization of the planetary bulk parameters, which allow us to further investigate the formation and evolution of the planetary systems and the main properties of the host stars. Methods. We used the transit light curve to characterize the planetary parameters relative to the stellar parameters. The analysis of HARPS spectra established the planetary nature of the detections, providing their masses. Further photometric and spectroscopic ground-based observations provided stellar parameters (log g,Teff,v sin i) to characterize the host stars. Our model takes the geometry of the transit to constrain the stellar density into account, which when linked to stellar evolutionary models, determines the bulk parameters of the star. Because of the asymmetric shape of the light curve of one of the planets, we had to include the possibility in our model that the stellar surface was not strictly spherical. Results. We present the planetary parameters of CoRoT-28b, a Jupiter-sized planet (mass 0.484+/-0.087MJup; radius 0.955+/-0.066RJup) orbiting an evolved star with an orbital period of 5.208 51 +/- 0.000 38 days, and CoRoT-29b, another Jupiter-sized planet (mass 0.85 +/- 0.20MJup; radius 0.90 +/- 0.16RJup) orbiting an oblate star with an orbital period of 2.850 570 +/- 0.000 006 days. The reason behind the asymmetry of the transit shape is not understood at this point. Conclusions. These two new planetary systems have very interesting properties and deserve further study, particularly in the case of the star CoRoT-29., Comment: 19 pages, 21 figures. Revised version to update affiliations and title, according to published version
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- 2015
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48. The space photometry revolution and our understanding of RR Lyrae stars
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Szabó, R., Benkő, J. M., Paparó, M., Chapellier, E., Poretti, E., Baglin, A., Weiss, W. W., Kolenberg, K., Guggenberger, E., and Borgne, J. -F. Le
- Subjects
Astrophysics - Solar and Stellar Astrophysics - Abstract
The study of RR Lyrae stars has recently been invigorated thanks to the long, uninterrupted, ultra-precise time series data provided by the Kepler and CoRoT space telescopes. We give a brief overview of the new observational findings concentrating on the connection between period doubling and the Blazhko modulation, and the omnipresence of additional periodicities in all RR Lyrae subtypes, except for non-modulated RRab stars. Recent theoretical results demonstrate that if more than two modes are present in a nonlinear dynamical system such as a high-amplitude RR Lyrae star, the outcome is often an extremely intricate dynamical state. Thus, based on these discoveries, an underlying picture of complex dynamical interactions between modes is emerging which sheds new light on the century-old Blazhko-phenomenon, as well. New directions of theoretical efforts, like multi-dimensional hydrodynamical simulations, future space photometric missions and detailed spectroscopic investigations will pave the way towards a more complete understanding of the atmospheric and pulsation dynamics of these enigmatic touchstone objects., Comment: Proceedings of the CoRoT Symposium 3 / Kepler KASC-7 joint meeting, Toulouse, July 2014. To be published by EPJ Web of Conferences
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- 2014
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49. The CoRoT discovery of a unique triple-mode cepheid in the galaxy
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Poretti, Ennio, Baglin, Annie, and Weiss, Werner W.
- Subjects
Astrophysics - Solar and Stellar Astrophysics - Abstract
The exploitation of the CoRoT treasure of stars observed in the exoplanetary field allowed the detection of a unusual triple-mode Cepheid in the Milky Way, CoRoT 0223989566. The two modes with the largest amplitudes and period ratio of 0.80 are identified with the first (P1=1.29 d) and second (P2=1.03 d) radial overtones. The third period, which has the smallest amplitude but able to produce combination terms with the other two, is the longest one (P3=1.89 d). The ratio of 0.68 between the first-overtone period and the third period is the unusual feature. Its identification with the fundamental radial or a nonradial mode is discussed with respect to similar cases in the Magellanic Clouds. In both cases the period triplet and the respective ratios make the star unique in our Galaxy. The distance derived from the period-luminosity relation and the galactic coordinates put CoRoT~0223989566 in the metal-rich environment of the "outer arm" of the Milky Way., Comment: Published as ApJ Letter
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- 2014
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50. Electron Beam Characterization of REBCO-Coated Conductors at Cryogenic Conditions
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Michal Haubner, Patrick Krkotić, Catarina Serafim, Valentine Petit, Vincent Baglin, Sergio Calatroni, Bernard Henrist, Artur Romanov, Teresa Puig, and Joffre Gutierrez
- Subjects
REBCO ,HTS ,SEY ,ESD ,SEM ,EDS ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
Particle accelerators with superconducting magnets operating at cryogenic temperatures use a beam screen (BS) liner that extracts heat generated by the circulating bunched charge particle beam before it can reach the magnets. The BS surface, commonly made of high–conductivity copper, provides a low impedance for beam stability reasons, low secondary electron yield (SEY) to mitigate the electron–cloud (EC) effect, and low electron–stimulated desorption yield (ESD) to limit the dynamic pressure rise due to EC. Rare–earth barium copper oxide (REBCO) high–temperature superconductors (HTSs) recently reached technical maturity, are produced as coated conductor tapes (REBCO–CCs), and will be considered for application in future colliders to decrease the BS impedance and enable operation at around 50 K, consequently relaxing the cryogenic requirements. Aside from HTS properties, industry–grade REBCO–CCs also need qualification for EC and dynamic vacuum compatibility under accelerator–like conditions. Hence, we report the SEY and ESD measured at cryogenic temperatures of 12 K under low–energy electron irradiation of 0–1.4 keV. We also verify the sample compositions and morphologies using the XPS, SEM, and EDS methods. The energy and dose dependencies of ESD are comparable to those of technical–grade metals and one sample reached SEYMAX = 1.2 after electron conditioning.
- Published
- 2023
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