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51. Advancing Theory and Modeling Efforts in Heliophysics

Author

Guo, Fan, primary, Antiochos, Spiro, additional, Cassak, Paul, additional, Chen, Bin, additional, Chen, Xiaohang, additional, Dong, Chuanfei, additional, Downs, Cooper, additional, Giacalone, Joe, additional, Haggerty, Colby, additional, Ji, Hantao, additional, Karpen, Judith, additional, Klimchuk, James, additional, Li, Wen, additional, Li, Xiaocan, additional, Oka, M., additional, Reeves, Katharine, additional, Swisdak, M., additional, and Tu, Weichao, additional

Published
2022
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52. Probing turbulence in solar flares from SDO/AIA emission lines.

Author

Xie, Xiaoyan, Li, Gang, Reeves, Katharine K., Gou, Tingyu, Rosa, Reinaldo Roberto, and Munoz, Patricio A.

Subjects
SOLAR atmosphere, PLASMA astrophysics, SOLAR spectra, SOLAR corona, SOLAR flares
Abstract

Multiple pieces of evidence have revealed the important role of turbulence in physical processes in solar eruptions, from particle acceleration to the suppression of conductive cooling. Radio observations of density variation have established a Kolmogorov-like spectrum for solar wind density disturbance. Close to the Sun, measurements from extreme ultraviolet (EUV) bands have been used to examine turbulence in the solar atmosphere. The Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory (SDO/AIA) has been frequently used for diagnosing plasma properties due to its complex coverage of temperature response. We compute structure functions (SFs) using SDO/AIA emission measurements for two example of plasma sheets. With the relationship of v ~ b ~ δη and δΙ ~ δ(η0 + δη)2 ~ δη (v, b, δη, and δΙ are turbulent velocity, magnetic field, number density, and intensity, respectively, and η0 is the background density), SFs of δΙ can be regarded as a proxy for those of the turbulent vand b fields in the plasma sheet. We show that by properly accounting for the radial dependence of the emission line intensity, an SF method is capable of probing the presence of turbulence from SDO/AIA emission lines. Compared to ίη situ observations, performing SFs on EUV emissions is advantageous in studying turbulence behavior in the wave-vector space, and it opens a new window for investigating turbulence from massive SDO/AIA observations. [ABSTRACT FROM AUTHOR]

Published
2024
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53. Imaging and spectroscopic observations of magnetic reconnection and chromospheric evaporation in a solar flare

Author

Tian, Hui, Li, Gang, Reeves, Katharine K., Raymond, John C., Guo, Fan, Liu, Wei, Chen, Bin, and Murphy, Nicholas A.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

Magnetic reconnection is believed to be the dominant energy release mechanism in solar flares. The standard flare model predicts both downward and upward outflow plasmas with speeds close to the coronal Alfv\'{e}n speed. Yet, spectroscopic observations of such outflows, especially the downflows, are extremely rare. With observations of the newly launched Interface Region Imaging Spectrograph (IRIS), we report the detection of greatly redshifted ($\sim$125 km s$^{-1}$ along line of sight) Fe {\sc{xxi}} 1354.08\AA{} emission line with a $\sim$100 km s$^{-1}$ nonthermal width at the reconnection site of a flare. The redshifted Fe {\sc{xxi}} feature coincides spatially with the loop-top X-Ray source observed by the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI). We interpret this large redshift as the signature of downward-moving reconnection outflow/hot retracting loops. Imaging observations from both IRIS and the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) also reveal the eruption and reconnection processes. Fast downward-propagating blobs along these loops are also found from cool emission lines (e.g., Si {\sc{iv}}, O {\sc{iv}}, C {\sc{ii}}, Mg {\sc{ii}}) and images of AIA and IRIS. Furthermore, the entire Fe {\sc{xxi}} line is blueshifted by $\sim$260 km s$^{-1}$ at the loop footpoints, where the cool lines mentioned above all exhibit obvious redshift, a result that is consistent with the scenario of chromospheric evaporation induced by downward-propagating nonthermal electrons from the reconnection site., Comment: 5 figures, accepted by ApJL

Published
2014
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54. Mass and energy of erupting solar plasma observed with the X-Ray Telescope on Hinode

Author

Lee, Jin-Yi, Raymond, John C., Reeves, Katharine K., Moon, Yong-Jae, and Kim, Kap-Sung

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We investigate seven eruptive plasma observations by Hinode/XRT. Their corresponding EUV and/or white light CME features are visible in some events. Five events are observed in several passbands in X-rays, which allows the determination of the eruptive plasma temperature using a filter ratio method. We find that the isothermal temperatures vary from 1.6 to 10 MK. These temperatures are an average weighted toward higher temperature plasma. We determine the mass constraints of eruptive plasmas by assuming simplified geometrical structures of the plasma with isothermal plasma temperatures. This method provides an upper limit to the masses of the observed eruptive plasmas in X-ray passbands since any clumping causes the overestimation of the mass. For the other two events, we assume the temperatures are at the maximum temperature of the XRT temperature response function, which gives a lower limit of the masses. We find that the masses in XRT, ~3x10 13 - 5x10 14 g, are smaller in their upper limit than total masses obtained by LASCO, ~1x10 15 g. In addition, we estimate the radiative loss, thermal conduction, thermal, and kinetic energies of the eruptive plasma in X-rays. For four events, we find that the thermal conduction time scales are much shorter than the duration of eruption. This result implies that additional heating during the eruption may be required to explain the plasma observations in X-rays for the four events.

Published
2014
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55. Calibrating Data from the Hinode/X-Ray Telescope and Associated Uncertainties

Author

Kobelski, Adam R., Saar, Steven H., Weber, Mark A., McKenzie, David E., and Reeves, Katharine K.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The X-Ray Telescope (XRT) onboard the Hinode satellite, launched 23 September 2006 by the Japanese Aerospace Exploration Agency (JAXA) is a joint mission between Japan, the United States, and the United Kingdom to study the solar corona. In particular XRT was designed to study solar plasmas with temperatures between 1 and 10 MK with $\approx1''$ pixels ($\approx2''$ resolution). Prior to analysis, the data product from this instrument must be properly calibrated and data values quantified in order to assess accurately the information contained within. We present here the standard methods of calibration for these data. The calibration is performed on an empirical basis which uses the least complicated correction that accurately describes the data while suppressing spurious features. By analyzing the uncertainties remaining in the data after calibration, we conclude that the procedure is successful, as the remaining uncertainty after calibration is dominated by photon noise. This calibration software is available in the Solar Soft software library., Comment: 26 pages, 16 figures, Accepted for publication in Solar Physics

Published
2013
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56. SDO/AIA Observations of a Partially Erupting Prominence

Author

Tripathi, Durgesh, Reeves, Katharine K., Gibson, Sarah E., Srivastava, Abhishek, and Joshi, Navin C.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We report an observation of a partially erupting prominence and associated dynamical plasma processes based on observations recorded by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). The prominence first goes through a slow rise (SR) phase followed by a fast rise (FR). The slow rise phase started after a couple of small brightenings seen toward the footpoints. At the turning point from SR to FR, the prominence had already become kinked. The prominence shows strong brightening at the central kink location during the start of FR. We interpret this as internal magnetic reconnection occurring at a vertical current sheet forming between the two legs of the erupting prominence (flux-rope). The brightening at the central kink location is seen in all the EUV channels of AIA. The contributions of differential emission at higher temperatures are larger compared to that for typical coronal temperatures supporting a reconnection scenario at the central kink location. The plasma above the brightening location gets ejected as a hot plasmoid-like structure embedded in a CME, and those below drain down in the form of blobs moving towards the Sun's surface. The unique time resolution of the AIA has allowed all of these eruptive aspects, including SR-to-FR, kinking, central current sheet formation, plasmoid-like eruption, and filament "splitting", to be observed in a single event, providing strong and comprehensive evidence in favour of the model of partially erupting flux ropes., Comment: 16 pages, 5 figures, Accepted for Publication in ApJ

Published
2013
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57. X-ray and EUV Observations of GOES C8 Solar Flare Events

Author

Bowen, Trevor A., Testa, Paola, and Reeves, Katharine K.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We present an analysis of soft X-ray (SXR) and extreme-ultraviolet (EUV) observations of solar flares with an approximate C8 GOES class. Our constraint on peak GOES SXR flux allows for the investigation of correlations between various flare parameters. We show that the the duration of the decay phase of a flare is proportional to the duration of its rise phase. Additionally, we show significant correlations between the radiation emitted in the flare rise and decay phases. These results suggest that the total radiated energy of a given flare is proportional to the energy radiated during the rise phase alone. This partitioning of radiated energy between the rise and decay phases is observed in both SXR and EUV wavelengths. Though observations from the EVE show significant variation in the behavior of individual EUV spectral lines during different C8 events, this work suggests that broadband EUV emission is well constrained. Furthermore, GOES and AIA data, allow us to determine several thermal parameters (e.g. temperature, volume, density, and emission measure) for the flares within our sample. Analysis of these parameters demonstrate that, within this constrained GOES class, the longer duration solar flares are cooler events with larger volumes capable of emitting vast amounts of radiation. The shortest C8 flares are typically the hottest events, smaller in physical size, and have lower associated total energies. These relationships are directly comparable with several scaling laws and flare loop models.

Published
2013

58. Dynamics of the Transition corona

Author

Masson, Sophie, McCauley, Patrick, Golub, Leon, Reeves, Katharine K., and DeLuca, Ed

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

Magnetic reconnection between open and closed magnetic field in the corona is believed to play a crucial role in the corona/heliosphere coupling. At large scale, the exchange of open/closed connectivity is expected to occur in pseudo-streamer structures. However, there is neither clear observational evidence of how such coupling occurs in pseudo-streamers, nor evidence for how the magnetic reconnection evolves. Using a newly-developed technique, we enhance the off-limb magnetic fine structures observed with AIA and identify a pseudo-streamer-like feature located close to the northern coronal hole. After extrapolating the magnetic field with the PFSS model, we obtain a pseudo-streamer magnetic topology, null-point related topology bounded by open field. We compare the magnetic configuration with the UV observations and identify the magnetic structures expected to be involved in the event. Using an 3D MHD simulation of interchange reconnection, we showed that the evolution of the UV structures follows the magnetic field dynamics and the UV emitting structures have a pattern very similar to the plasma emission derived from the simulation. Our results highlight that the exchange between open and closed in the pseudo-streamer topology related to an observed event occurs at least partially at the null-point, similarly to the interchange reconnection in a single null-point topology. However, our results also indicate that the interchange reconnection in pseudo-streamers is a gradual physical process which opposes to the impulsive reconnection of the solar-jet model.

Published
2013
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60. The Effects of Including Non-Thermal Particles in Flare Loop Models

Author

Reeves, Katharine K., Winter, Henry D., and Larson, Natalie L.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

In this work, we use HyLoop (Winter et al. 2011), a loop model that can incorporate the effects of both MHD and non-thermal particle populations, to simulate soft X-ray emissions in various situations. First of all, we test the effect of acceleration location on the emission in several XRT filters by simulating a series of post flare loops with different injection points for the non-thermal particle beams. We use an injection distribution peaked at the loop apex to represent a direct acceleration model, and an injection distribution peaked at the footpoints to represent the Alf\'en wave interaction model. We find that footpoint injection leads to several early peaks in the apex-tofootpoint emission ratio. Second, we model a loop with cusp-shaped geometry based on the eruptionmodel developed by Lin & Forbes (2000) and Reeves& Forbes (2005a), and find that early in the flare, emission in the loop footpoints is much brighter in the XRT filters if non-thermal particles are included in the calculation. Finally, we employ a multi-loop flare model to simulate thermal emission and compare with a previous model where a semi-circular geometry was used (Reeves et al. 2007). We compare the Geostationary Operational Environmental Satellite (GOES) emission from the two models and find that the cusp-shaped geometry leads to a smaller GOES class flare., Comment: 11 pages, 9 figures, invited talk at the Hinode 4 conference

Published
2012

61. Re-interpretation of Supra-Arcade Downflows in Solar Flares

Author

Savage, Sabrina L., McKenzie, David E., and Reeves, Katharine K.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Physics - Fluid Dynamics, Physics - Plasma Physics
Abstract

Following the eruption of a filament from a flaring active region, sunward-flowing voids are often seen above developing post-eruption arcades. First discovered using the soft X-ray telescope aboard Yohkoh, these supra-arcade downflows (SADs) are now an expected observation of extreme ultra-violet (EUV) and soft X-ray coronal imagers and spectrographs (e.g, TRACE, SOHO/SUMER, Hinode/XRT, SDO/AIA). Observations made prior to the operation of AIA suggested that these plasma voids (which are seen in contrast to bright, high-temperature plasma associated with current sheets) are the cross-sections of evacuated flux tubes retracting from reconnection sites high in the corona. The high temperature imaging afforded by AIA's 131, 94, and 193 Angstrom channels coupled with the fast temporal cadence allows for unprecedented scrutiny of the voids. For a flare occurring on 2011 October 22, we provide evidence suggesting that SADs, instead of being the cross-sections of relatively large, evacuated flux tubes, are actually wakes (i.e., trailing regions of low density) created by the retraction of much thinner tubes. This re-interpretation is a significant shift in the fundamental understanding of SADs, as the features once thought to be identifiable as the shrinking loops themselves now appear to be "side effects" of the passage of the loops through the supra-arcade plasma. In light of the fact that previous measurements have attributed to the shrinking loops characteristics that may instead belong to their wakes, we discuss the implications of this new interpretation on previous parameter estimations, and on reconnection theory., Comment: 15 pages, 5 figures, Published to ApJL

Published
2011
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62. The Role of Magnetic Topology in the Heating of Active Region Coronal Loops

Author

Lee, J. -Y., Barnes, Graham, Leka, K. D., Reeves, Katharine K., Korreck, K. E., Golub, L., and DeLuca, E. E.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We investigate the evolution of coronal loop emission in the context of the coronal magnetic field topology. New modeling techniques allow us to investigate the magnetic field structure and energy release in active regions. Using these models and high resolution multi-wavelength coronal observations from the Transition Region and Coronal Explorer (TRACE) and the X-ray Telescope (XRT) on Hinode, we are able to establish a relationship between the light curves of coronal loops and their associated magnetic topologies for NOAA Active Region 10963. We examine loops that show both transient and steady emission, and we find that loops that show many transient brightenings are located in domains associated with a high number of separators. This topology provides an environment for continual impulsive heating events through magnetic reconnection at the separators. A loop with relatively constant X-ray and EUV emission, on the other hand, is located in domains that are not associated with separators. This result implies that larger-scale magnetic field reconnections are not involved in heating plasma in these regions, and the heating in these loops must come from another mechanism, such as small-scale reconnections (i.e., nanoflares) or wave heating. Additionally, we find that loops that undergo repeated transient brightenings are associated with separators that have enhanced free energy. In contrast, we find one case of an isolated transient brightening that seems to be associated with separators with a smaller free energy., Comment: 36 pages, 11 figures, To appear in Astrophysical Journal

Published
2010
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63. Reconnection Outflows and Current Sheet Observed with Hinode/XRT in the 2008 April 9 'Cartwheel CME' Flare

Author

Savage, Sabrina L., McKenzie, David E., Reeves, Katharine K., Forbes, Terry G., and Longcope, Dana W.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

Supra-arcade downflows (SADs) have been observed with Yohkoh/SXT (soft X-rays (SXR)), TRACE (extreme ultra-violet (EUV)), SoHO/LASCO (white light), SoHO/SUMER (EUV spectra), and Hinode/XRT (SXR). Characteristics such as low emissivity and trajectories which slow as they reach the top of the arcade are consistent with post-reconnection magnetic flux tubes retracting from a reconnection site high in the corona until they reach a lower-energy magnetic configuration. Viewed from a perpendicular angle, SADs should appear as shrinking loops rather than downflowing voids. We present XRT observations of supra-arcade downflowing loops (SADLs) following a coronal mass ejection (CME) on 2008 April 9 and show that their speeds and decelerations are consistent with those determined for SADs. We also present evidence for a possible current sheet observed during this flare that extends between the flare arcade and the CME. Additionally, we show a correlation between reconnection outflows observed with XRT and outgoing flows observed with LASCO., Comment: 32 pages, 23 figures, Accepted for publication by the Astrophysical Journal (Oct. 2010)

Published
2010
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64. Probing the sun with imaging spectrographs

Author

Winebarger, Amy, primary, Athiray, P. S., additional, Caspi, Amir, additional, Champey, Patrick R., additional, Kobayashi, Ken, additional, Kankelborg, Charles, additional, and Reeves, Katharine, additional

Published
2023
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69. A prominence eruption from the Sun to the Parker Solar Probe with multi-spacecraft observations

Author

Niembro, Tatiana, primary, Seaton, Daniel B., additional, Hess, Phillip, additional, Berghmans, David, additional, Andretta, Vincenzo, additional, Reeves, Katharine K., additional, Riley, Pete, additional, Stevens, Michael L., additional, Landini, Federico, additional, Sasso, Clementina, additional, Verbeeck, Cis, additional, Susino, Roberto, additional, and Uslenghi, Michela, additional

Published
2023
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70. COSMO: The COronal Solar Magnetism Observatory

Author

Tomczyk, Steven, primary, Burkepile, Joan, additional, Casini, Roberto, additional, Corchado-Albelo, Marcel, additional, DeLuca, Ed, additional, Toma, Giuliana de, additional, Wijn, Alfred de, additional, Dikpati, Mausumi, additional, Fan, Yuhong, additional, Farid, Samaiyah, additional, Gibson, Sarah, additional, Gilbert, Holly, additional, Judge, Philip, additional, Kucera, Therese, additional, Landi, Enrico, additional, Lin, Haosheng, additional, Martinez-Pillet, Valentin, additional, Morton, Richard, additional, Paraschiv, Alin, additional, Reeves, Katharine, additional, Schad, Thomas A., additional, Seaton, Dan, additional, and Zhang, Jie, additional

Published
2023
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71. Next-Generation Comprehensive Data-Driven Models of Solar Eruptive Events

Author

Allred, Joel C., primary, Kerr, Graham S., additional, Alaoui, Meriem, additional, Buitrago-Casas, Juan Camilo, additional, Caspi, Amir, additional, Chen, Bin, additional, Chen, Thomas Y., additional, Glesener, Lindsay, additional, Guidoni, Silvina E., additional, Guo, Fan, additional, Karpen, Judith, additional, Musset, Sophie, additional, Reeves, Katharine K., additional, and Shih, Albert Y., additional

Published
2023
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72. Work-Life Balance Starts with Proper Deadlines and Exemplary Agencies

Author

Lugaz, Noé, primary, Winslow, Réka M., additional, Al-Haddad, Nada, additional, Lee, Christina O., additional, Vines, Sarah, additional, Reeves, Katharine, additional, Caspi, Amir, additional, Seaton, Daniel, additional, Downs, Cooper, additional, Glesener, Lindsay, additional, Vourlidas, Angelos, additional, Scolini, Camilla, additional, Török, Tibor, additional, Allen, Robert, additional, and Palmerio, Erika, additional

Published
2023
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74. Particle acceleration in solar flares with imaging-spectroscopy in soft X-rays

Author

Oka, Mitsuo, primary, Caspi, Amir, additional, Chen, Bin, additional, Cheung, Mark, additional, Drake, James, additional, Gary, Dale, additional, Glesener, Lindsay, additional, Guo, Fan, additional, Ji, Hantao, additional, Li, Xiaocan, additional, Nakamura, Takuma, additional, Narukage, Noriyuki, additional, Reeves, Katharine K., additional, Saint-Hilaire, Pascal, additional, Sakao, Taro, additional, Shen, Chengcai, additional, WInebarger, Amy, additional, and Woods, Thomas, additional

Published
2023
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75. Early Flare Physics and Flare Alerts

Author

Vievering, Juliana T., primary, Savage, Sabrina, additional, Buitrago-Casas, Juan Camilo, additional, Reeves, Katharine K., additional, Herde, Vicki, additional, Glesener, Lindsay, additional, Oliveros, Juan Carlos Martinez, additional, Athiray, P. S., additional, Golub, Leon, additional, Liang, Gongbo, additional, Chamberlin, Phillip C., additional, Emslie, A. Gordon, additional, Massa, Paolo, additional, Saint-Hilaire, Pascal, additional, Machol, Janet, additional, Peck, Courtney, additional, Winebarger, Amy, additional, Vigil, Genevieve, additional, Peterson, Marianne, additional, Pillet, Valentin Martinez, additional, and Smith, Brent, additional

Published
2023
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76. COMPLETE: a flagship mission for complete understanding of 3D coronal magnetic energy release

Author

Caspi, Amir, primary, Casini, Roberto, additional, Downs, Cooper, additional, Gibson, Sarah, additional, Gilbert, Holly, additional, Glesener, Lindsay, additional, Guidoni, Silvina, additional, Hughes, J. Marcus, additional, McKenzie, David, additional, Plowman, Joseph, additional, Seaton, Daniel, additional, Reeves, Katharine, additional, Saint-Hilaire, Pascal, additional, Shih, Albert Y., additional, West, Matthew, additional, Alaoui, Meriem, additional, Alexander, David, additional, Allred, Joel C., additional, Ashfield, William, additional, Bradshaw, Stephen J., additional, Bröse, Malte, additional, Buitrago-Casas, Juan Camilo, additional, Chamberlin, Phillip, additional, Chandra, Ramesh, additional, Che, Haihong, additional, Chen, Thomas Y., additional, Chen, Bin, additional, Cheng, Xin, additional, Christe, Steven, additional, Dahlin, Joel, additional, Nolfo, Georgia de, additional, Dickson, Ewan C. M., additional, Dudík, Jaroslav, additional, Emslie, Gordon, additional, Erdelyi, Robertus, additional, Gallagher, Peter T., additional, Gan, Weiqun, additional, Gary, Dale, additional, Guo, Fan, additional, Hayes, Laura A., additional, Hudson, Hugh, additional, Ji, Hantao, additional, Jones, Andrew R., additional, Kerr, Graham S., additional, Keshav, Aggarwal, additional, Knuth, Trevor, additional, Kooi, Jason, additional, Kumari, Anshu, additional, Li, Ying, additional, Limousin, Olivier, additional, Longo, Francesco, additional, Maharana, Anwesha, additional, Mandrini, Cristina H., additional, Oliveros, Juan Carlos Martinez, additional, Massone, Anna Maria, additional, McAteer, R. T. James, additional, McConnell, Mark, additional, McTiernan, James, additional, Meuris, Aline, additional, Mitchell, J. Grant, additional, Motorina, Galina, additional, Mrozek, Tomasz, additional, Musset, Sophie, additional, Narukage, Noriyuki, additional, Nayak, Sushree S., additional, Newmark, Jeffrey, additional, Nitta, Nariaki, additional, Panesar, Navdeep, additional, Pariat, Etienne, additional, Piana, Michele, additional, Qiu, Jiong, additional, Raouafi, Nour E., additional, Reale, Fabio, additional, Rozelot, Jean Pierre, additional, Samaiyah, Farid, additional, Sarkar, Ranadeep, additional, Shaik, Shaheda Begum, additional, Skokic, Ivica, additional, Stores, Morgan, additional, Struminsky, Alexei, additional, Su, Yang, additional, Takahashi, Tadayuki, additional, Tiwari, Sanjiv, additional, Tsiklauri, David, additional, Vievering, Juliana T., additional, Warmuth, Alexander, additional, White, Stephen, additional, Zhang, Jie, additional, and Zimovets, Ivan V., additional

Published
2023
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77. Advancing Theory and Modeling Efforts in Heliophysics

Author

Guo, Fan, primary, Antiochos, Spiro, additional, Cassak, Paul, additional, Chen, Bin, additional, Chen, Xiaohang, additional, Dong, Chuanfei, additional, Downs, Cooper, additional, Giacalone, Joe, additional, Haggerty, Colby, additional, Ji, Hantao, additional, Karpen, Judith, additional, Klimchuk, James, additional, Li, Wen, additional, Li, Xiaocan, additional, Oka, Mitsuo, additional, Reeves, Katharine, additional, Swisdak, Marc, additional, and Tu, Weichao, additional

Published
2023
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78. Improving Multi-Dimensional Data Formats, Access, and Assimilation Tools for the Twenty-First Century

Author

Seaton, Daniel, primary, Caspi, Amir, additional, Casini, Roberto, additional, Downs, Cooper, additional, Gibson, Sarah, additional, Gilbert, Holly, additional, Glesener, Lindsay, additional, Guidoni, Silvina, additional, Hughes, J. Marcus, additional, McKenzie, David, additional, Plowman, Joseph, additional, Reeves, Katharine, additional, Saint-Hilaire, Pascal, additional, Shih, Albert Y., additional, West, Matthew, additional, Alaoui, Meriem, additional, Alzate, Nathalia, additional, Ashfield, William, additional, Bradshaw, Stephen J., additional, Buitrago-Casas, Juan Camilo, additional, Che, Haiong, additional, Chen, Thomas Y., additional, Christe, Steven, additional, Erdelyi, Robertus, additional, Farid, Samaiyah, additional, Gallagher, Peter T., additional, Gary, Dale, additional, Gilly, Chris, additional, Guo, Fan, additional, Hayes, Laura A., additional, Hudson, Hugh, additional, Ji, Hantao, additional, Jones, Andrew R., additional, Keshav, Aggarwal, additional, Kirk, Michael S., additional, Knuth, Trevor, additional, Kobelski, Adam, additional, Kooi, Jason, additional, Kumari, Anshu, additional, Li, Ying, additional, Li, Jing, additional, Lowder, Chris, additional, Mandrini, Cristina H., additional, Oliveros, Juan Carlos Martinez, additional, Mason, James Paul, additional, Mason, E. I., additional, Massone, Anna Maria, additional, McAteer, R. T. James, additional, McTiernan, James, additional, Motorina, Galina, additional, Nayak, Sushree S., additional, Nitta, Nariaki, additional, Panesar, Navdeep, additional, Pariat, Etienne, additional, Piana, Michele, additional, Reale, Fabio, additional, Reardon, Kevin, additional, Rivera, Yeimy, additional, Sarkar, Ranadeep, additional, Shaikh, Zubair, additional, Stores, Morgan, additional, Tiwari, Sanjiv, additional, Warmuth, Alexander, additional, and White, Stephen, additional

Published
2023
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79. The need for focused, hard X-ray investigations of the Sun

Author

Glesener, Lindsay, primary, Shih, Albert Y., additional, Caspi, Amir, additional, Milligan, Ryan, additional, Hudson, Hugh, additional, Oka, Mitsuo, additional, Buitrago-Casas, Juan Camilo, additional, Guo, Fan, additional, Ryan, Dan, additional, Kontar, Eduard, additional, Veronig, Astrid, additional, Hayes, Laura A., additional, Inglis, Andrew, additional, Golub, Leon, additional, Vilmer, Nicole, additional, Gary, Dale, additional, Reid, Hamish, additional, Hannah, Iain, additional, Kerr, Graham S., additional, Reeves, Katharine K., additional, Allred, Joel, additional, Guidoni, Silvina, additional, Yu, Sijie, additional, Christe, Steven, additional, Musset, Sophie, additional, Dennis, Brian, additional, Oliveros, Juan Carlos Martinez, additional, Athiray, P. S., additional, Vievering, Juliana, additional, White, Stephen, additional, Winebarger, Amy, additional, Drake, James, additional, Jeffrey, Natasha, additional, Antiochos, Spiro, additional, Duncan, Jessie, additional, Zhang, Yixian, additional, Alaoui, Meriem, additional, Simões, Paulo J. A., additional, Battaglia, Marina, additional, Setterberg, William, additional, Masek, Reed, additional, Chen, Thomas Y., additional, Peterson, Marianne, additional, Krucker, Säm, additional, Temmer, Manuela, additional, Saint-Hilaire, Pascal, additional, Petrosian, Vahe, additional, Knuth, Trevor, additional, and Moore, Christopher, additional

Published
2023
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80. A Strategy to Close Key Questions about the Middle Solar Corona During this Decade

Author

Seaton, Daniel, primary, West, Matthew, additional, Wexler, David, additional, Gilly, Chris, additional, Kooi, Jason, additional, Mason, Emily, additional, Mason, James, additional, Rachmeler, Laurel, additional, Chitta, Lakshmi Pradeep, additional, Rivera, Yeimy, additional, Raymond, John, additional, Reeves, Katharine K., additional, Golub, Leon, additional, Kooten, Samuel Van, additional, Vourlidas, Angelos, additional, Kobelski, Adam, additional, Downs, Cooper, additional, Caspi, Amir, additional, Nykyri, Katariina, additional, DeForest, Craig, additional, Chen, Bin, additional, Viall, Nicholeen, additional, Savage, Sabrina, additional, Raouafi, Nour, additional, Zanna, Giulio Del, additional, Ko, Yuan-Kuen, additional, Andretta, Vincenzo, additional, Giordano, Silvio, additional, Harra, Louise, additional, Gibson, Sarah, additional, Reardon, Kevin, additional, Alzate, Nathalia, additional, and Zhukov, Andrei, additional

Published
2023
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81. Frequency Agile Solar Radiotelescope

Author

Gary, Dale, primary, Chen, Bin, additional, White, Stephen, additional, Bastian, Timothy, additional, Saint-Hilaire, Pascal, additional, Drake, James, additional, Glesener, Lindsay, additional, Yu, Sijie, additional, Mondal, Surajit, additional, Fleishman, Gregory, additional, Vourlidas, Angelos, additional, Bale, Stuart, additional, Chhabra, Sherry, additional, Cohen, Christina, additional, DeForest, Craig, additional, Oliveros, Juan Carlos Martinez, additional, Ji, Hantao, additional, Buitrago-Casas, Juan Camilo, additional, Habbal, Shadia, additional, Lanzerotti, Louis J., additional, Shaik, Shaheda Begum, additional, Molnar, Momchil, additional, Nita, Gelu, additional, Emslie, Gordon, additional, Reardon, Kevin, additional, Guo, Fan, additional, Oka, Mitsuo, additional, Nitta, Nariaki, additional, Sun, Xudong, additional, Landi, Enrico, additional, Ofman, Leon, additional, Lee, Jeongwoo, additional, Hudson, Hugh, additional, Veronig, Astrid, additional, Qiu, Jiong, additional, Leka, KD, additional, Harvey, John, additional, Chen, Thomas Y., additional, Antiochos, Spiro, additional, Moore, Ron, additional, West, Matthew, additional, Dahlin, Joel, additional, Kosovichev, Alexander, additional, Knipp, Delores, additional, Raouafi, Nour, additional, Li, Xiaocan, additional, Schad, Thomas, additional, Kontar, Eduard, additional, Hayes, Laura, additional, Shen, Chengcai, additional, Castro, Guillermo Giménez de, additional, Hannah, Iain, additional, Solanki, Sami K., additional, Arnold, Harry, additional, Yurchyshyn, Vasyl, additional, Cheung, Mark, additional, Pillet, Valentin Martinez, additional, Tarr, Lucas, additional, Karpen, Judy, additional, Caspi, Amir, additional, Shih, Albert Y., additional, Anan, Tetsu, additional, Battaglia, Andrea Francesco, additional, Lin, Haosheng, additional, Alaoui, Meriem, additional, Reeves, Katharine K., additional, Guidoni, Silvina, additional, Klimchuk, James, additional, Kooi, Jason, additional, Kazachenko, Maria, additional, Beltran, Samuel Tun, additional, McTiernan, James, additional, Kuroda, Natsuha, additional, Schonfeld, Samuel, additional, Kahler, Stephen, additional, Downs, Cooper, additional, Cauzzi, Gianna, additional, Musset, Sophie, additional, Gilly, Chris R., additional, Asai, Ayumi, additional, Welsch, Brian, additional, Shimojo, Masumi, additional, Fan, Yuhong, additional, Masuda, Satoshi, additional, O’Donnell, Brian, additional, and Kumar, Pankaj, additional

Published
2023
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83. Quantifying Energy Release in Solar Flares and Solar Eruptive Events: New Frontiers with a Next-Generation Solar Radio Facility

Author

Chen, Bin, primary, Gary, Dale, additional, Yu, Sijie, additional, Mondal, Surajit, additional, Fleishman, Gregory, additional, Li, Xiaocan, additional, Shen, Chengcai, additional, Guo, Fan, additional, White, Stephen, additional, Bastian, Timothy, additional, Saint-Hilaire, Pascal, additional, Veronig, Astrid, additional, Drake, James, additional, Dahlin, Joel, additional, Glesener, Lindsay, additional, Ji, Hantao, additional, Oka, Mitsuo, additional, Asai, Ayumi, additional, Karpen, Judith, additional, Klimchuk, James, additional, Antiochos, Spiro, additional, Buitrago-Casas, Juan Camilo, additional, Cheung, Mark, additional, Shaik, Shaheda Begum, additional, Chhabra, Sherry, additional, Chen, Thomas Y., additional, Hayes, Laura, additional, Kobelski, Adam, additional, West, Matthew, additional, Wang, Haimin, additional, Kumar, Pankaj, additional, Reeves, Katharine K., additional, Kooi, Jason, additional, Hudson, Hugh, additional, Caspi, Amir, additional, Fan, Yuhong, additional, Nita, Gelu, additional, McTiernan, James, additional, Kuroda, Natsuha, additional, Musset, Sophie, additional, and Allred, Joel C., additional

Published
2023
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84. Fundamentals of impulsive energy release in the corona

Author

Shih, Albert Y., primary, Glesener, Lindsay, additional, Krucker, Säm, additional, Guidoni, Silvina, additional, Christe, Steven, additional, Reeves, Katharine K., additional, Gburek, Szymon, additional, Caspi, Amir, additional, Alaoui, Meriem, additional, Allred, Joel C., additional, Battaglia, Marina, additional, Baumgartner, Wayne, additional, Dennis, Brian R., additional, Drake, James, additional, Goetz, Keith, additional, Golub, Leon, additional, Hannah, Iain, additional, Hayes, Laura A., additional, Holman, Gordon, additional, Inglis, Andrew, additional, Ireland, Jack, additional, Kerr, Graham S., additional, Klimchuk, James, additional, McKenzie, David E., additional, Moore, Christopher, additional, Musset, Sophie, additional, Reep, Jeffrey, additional, Ryan, Daniel, additional, Saint-Hilaire, Pascal, additional, Savage, Sabrina, additional, Seaton, Daniel B., additional, Stęślicki, Marek, additional, and Woods, Thomas, additional

Published
2023
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85. Firefly: The Case for a Holistic Understanding of the Global Structure and Dynamics of the Sun and the Heliosphere

Author

Raouafi, Nour E., primary, Hoeksema, J. Todd, additional, Newmark, Jeffrey S., additional, Gibson, Sarah, additional, Berger, Thomas E., additional, Upton, Lisa A., additional, Vourlidas, Angelos, additional, Hassler, Donald M., additional, Kinnison, James, additional, Ho, George C., additional, Mason, Glenn M., additional, Vievering, Juliana T., additional, Viall, Nicholeen M., additional, Szabo, Adam, additional, Casti, Marta, additional, Case, Anthony W., additional, Lepri, Susan T., additional, Velli, Marco, additional, Georgoulis, Manolis K., additional, Bourouaine, Sofiane, additional, Jagarlamudi, Vamsee K., additional, Laming, John M., additional, Mason, James P., additional, Harra, Louise, additional, Madjarska, Maria, additional, Chitta, Lakshmi Pradeep, additional, Duran, J. Sebastian Castellanos, additional, Korpi-Lagg, Andreas, additional, Badman, Samuel, additional, Chifu, Iulia, additional, Lario, David, additional, Wing, Simon, additional, Bale, Stuart, additional, Paouris, Evangelos, additional, Narayanamurthy, Smitha, additional, Sinjan, Jonas, additional, Bernasconi, Pietro, additional, Krivova, Natalie, additional, Gizon, Laurent, additional, Leamon, Robert J., additional, Gosain, Sanjay, additional, Kazachenko, Maria, additional, Petrie, Gordon, additional, Pillet, Valentin Martinez, additional, Jain, Kiran, additional, Luhmann, Janet, additional, Bertello, Luca, additional, Toriumi, Shin, additional, Jiang, Chen, additional, Vasko, Ivan, additional, Harvey, John W., additional, Schad, Thomas A., additional, Jebaraj, Immanuel C., additional, Scherrer, Philip, additional, Hofmeister, Stefan, additional, Tiwari, Sanjiv, additional, Wang, Haimin, additional, Roth, Markus, additional, Panesar, Navdeep, additional, Sekii, Takashi, additional, Magyar, Norbert, additional, Guglielmino, Salvo L., additional, Parenti, Susanna, additional, Tremblay, Benoit, additional, Tziotziou, Kostas, additional, Toma, Giuliana de, additional, Chen, Bin, additional, Katsukawa, Yukio, additional, Pontieu, Bart De, additional, Cheng, Xin, additional, Cheung, Mark, additional, Kosovichev, Alexander, additional, Jiang, Jie, additional, Schunker, Hannah, additional, Kawabata, Yusuke, additional, Oba, Takayoshi, additional, Cameron, Robert, additional, Mathew, Shibu K., additional, Rodriguez, Jaime de la Cruz, additional, Kusano, Kanya, additional, Temmer, Manuela, additional, Andretta, Vincenzo, additional, Sven, Wedemeyer, additional, Samara, Evangelia, additional, Heinemann, Stephan G., additional, Warmuth, Alexander, additional, Jafarzadeh, Shahin, additional, Mackay, Duncan H., additional, Fludra, Andrzej, additional, Rubio, Luis Bellot, additional, Suárez, David Orozco, additional, Chen, Thomas Y., additional, Kontogiannis, Ioannis, additional, Yardley, Stephanie, additional, Veronig, Astrid, additional, Joshi, Jayant, additional, Spadaro, Daniele, additional, Kubo, Masahito, additional, Bose, Souvik, additional, González, Nazaret Bello, additional, Solanki, Sami, additional, Denker, Carsten, additional, Verma, Meetu, additional, Vocks, Christian, additional, Borrero, Juan Manuel, additional, Mathews, Nathaniel H., additional, Cury, Shannon, additional, Sasso, Clementina, additional, Stenborg, Guillermo, additional, Tibebu, Getachew, additional, Battams, Karl, additional, Wijsen, Nicolas, additional, Bruno, Alessandro, additional, Peter, Hardi, additional, I., Mason Emily, additional, M., Caplan Ronald, additional, Martinez-Sykora, Juan, additional, Seaton, Daniel, additional, Airapetian, Vladimir, additional, Jian, Lan, additional, Thompson, William T., additional, Ofman, Leon, additional, Wallace, Samantha, additional, Kucera, Therese, additional, Desai, Ravindra, additional, Richardson, Ian, additional, Burkepile, Joan, additional, Cranmer, Steven, additional, Strauss, R. Du Toit, additional, Murabito, Mariarita, additional, Alfred, De Wijn, additional, Xie, Hong, additional, Rempel, Matthias, additional, Webber, Shea Hess, additional, Reeves, Katharine K., additional, Hurlburt, Neal, additional, Berrilli, Francesco, additional, DeLuca, Edward, additional, Egeland, Ricky, additional, Ko, Yuan-Kuen, additional, Kee, Nathaniel Dylan, additional, Mahajan, Sushant S., additional, Craig, DeForest, additional, Wood, Brian E., additional, Chris, Chaston, additional, Nigro, Giuseppina, additional, Shaik, Shaheda Begum, additional, Gosic, Milan, additional, Shimizu, Toshifumi, additional, Zuccarello, Francesca, additional, Nitta, Nariaki, additional, Chatzistergos, Theodosios, additional, Fan, Yuhong, additional, Zhang, Jie, additional, Fehlmann, Andre, additional, Palmerio, Erika, additional, Ishikawa, Ryohtaroh T., additional, Danilovic, Sanja, additional, Skan, Moa, additional, Froment, Clara, additional, Baso, Carlos José Díaz, additional, Liang, Zhi-Chao, additional, Wit, Thierry Dudok de, additional, Barczynski, Krzysztof, additional, Johnston, Craig, additional, Pariat, Etienne, additional, Hadid, Lina, additional, Aulanier, Guillaume, additional, Brun, Allan Sacha, additional, Athanasios, Kouloumvakos, additional, Cauzzi, Gianna, additional, Dredger, Pauline, additional, French, Ryan, additional, Christian, Damian, additional, Linton, Mark, additional, Ireland, Jack, additional, Tarr, Lucas, additional, Strugarek, Antoine, additional, Uritsky, Vadim, additional, DeRosa, Marc, additional, Kretzschmar, Matthieu, additional, García, Rafael A., additional, Monteiro, Mario J. P. F. G., additional, Mathur, Savita, additional, Breton, Sylvain N., additional, Pinto, Rui F., additional, Oliveros, Juan Carlos Martinez, additional, Loper, Robert, additional, Auchère, Frédéric, additional, Wang, Tongjiang, additional, Reginald, Nelson, additional, Cunha, Margarida S., additional, Teriaca, Luca, additional, Chintzoglou, Georgios, additional, Lynch, Benjamin J., additional, Linker, Jon, additional, Beck, Paul, additional, Shannon, Jackson, additional, Clare, Benjamin, additional, Krupiarz, Christopher, additional, Whiting, Ian D., additional, Byerly, Adam, additional, Bushman, Stewart, additional, Carrelli, David, additional, Kijewski, Seth, additional, Englander, Jacob, additional, Mizes, Adam, additional, Porter, Jamie, additional, O’Neill, Michael, additional, Chattopadhyay, Debarati, additional, Albers, Joshua, additional, Rast, Mark, additional, Ermolli, Ilaria, additional, Tzeng, Nigel, additional, Hudson, James F., additional, Giunta, Alessandra, additional, Buchlin, Éric, additional, Bommier, Véronique, additional, Duncan, Nicole, additional, Janvier, Miho, additional, Strecker, Hanna, additional, Siu, Azaymi, additional, Perri, Barbara, additional, Maksimovic, Milan, additional, Vilmer, Nicole, additional, Toledo-Redondo, Sergio, additional, Kuckein, Christoph, additional, Alberti, Tommaso, additional, Antolin, Patrick, additional, Cuadrado, Regina Aznar, additional, Berghmans, David, additional, Brigitte, Schmieder, additional, Bucik, Radoslav, additional, Calchetti, Daniele, additional, Caspi, Amir, additional, Cohen, Christina, additional, Corbard, Thierry, additional, Cremades, Hebe, additional, Cummings, Alan, additional, Dhakal, Suman, additional, Dolla, Laurent, additional, Dominique, Marie, additional, Emslie, Gordon, additional, Ferrente, Fabiana, additional, Finley, Adam J., additional, Fletcher, Lyndsay, additional, Fraschetti, Federico, additional, Gafeira, Ricardo, additional, Gissot, Samuel, additional, Hegde, Dinesha, additional, Hu, Qiang, additional, Innocenti, Maria Elena, additional, Jin, Meng, additional, Klein, Kristopher, additional, Kumar, Pankaj, additional, Lacatus, Daniela, additional, Liewer, Paulett, additional, Magdalenic, Jasmina, additional, Mandal, Sudip, additional, Mandrini, Cristina H., additional, Mierla, Marilena, additional, Miralles, Mari Paz, additional, Moore, Ron, additional, Neville, Jonathan, additional, Niembro, Tatiana, additional, Nikou, Eleni, additional, Nindos, Alexander, additional, Papaioannou, Athanasios, additional, Rajaguru, S. Paul, additional, Reville, Victor, additional, Rochus, Pierre, additional, Rodriguez, Luciano, additional, Romoli, Marco, additional, Shestov, Sergei, additional, Shi, Chen, additional, Sorriso-Valvo, Luca, additional, St. Cyr, O. C., additional, Sterling, Alphohse, additional, Stevens, Michael L., additional, Susino, Roberto, additional, Swisdak, Marc, additional, Thompson, Barbara J., additional, Valliappan, Senthamizh Pavai, additional, Verbeeck, Francis, additional, Bothmer, Volker, additional, Xudong, Sun, additional, Zhukov, Andrei, additional, Katsiyannis, Thanassis, additional, Owen, Christopher, additional, Karna, Nishu, additional, Janssens, Jan, additional, Khomenko, Elena, additional, Gary, Dale, additional, Bandyopadhyay, Riddhi, additional, Chhiber, Rohit, additional, Tenerani, Anna, additional, Rouillard, Alexis, additional, Patsourakos, Spiros, additional, Anastasiadis, Anastasios, additional, Bocchialini, Karine, additional, Moraitis, Kostas, additional, Rivera, Yeimy, additional, Drake, James, additional, Baudin, Frédéric, additional, Chandran, Benjamin, additional, Dayeh, Maher, additional, Reardon, Kevin, additional, Cairns, Iver, additional, Bizien, Nina, additional, Wexler, David, additional, Bahauddin, Shah, additional, Rodriguez-Pacheco, Javier, additional, Yu, Sijie, additional, Lee, Jeongwoo, additional, Gontikakis, Costis, additional, Koukras, Alexandros, additional, Contel, Olivier Le, additional, Pezzi, Oreste, additional, Kintziger, Christian, additional, Boumier, Patrick, additional, Balasis, Georgios, additional, Dikpati, Mausumi, additional, Pesnell, W. Dean, additional, Chai, Yi, additional, Nandy, Dibyendu, additional, Charles, Arge, additional, Corti, Claudio, additional, Zhao, Lulu, additional, Matthaeus, William H., additional, Gilly, Chris R., additional, Erlandson, Robert E., additional, Derouich, Moncef, additional, Zhao, Lingling, additional, Poedts, Stefaan, additional, Vieira, Luis, additional, Adhikari, Laxman, additional, Buitrago-Casas, Juan Camilo, additional, Huang, Jia, additional, Moestl, Christian, additional, Liu, Mingzhe, additional, Oloketuyi, Jacob, additional, Zhuang, Bin, additional, Rodríguez-García, Laura, additional, Perez, Jean Carlos, additional, Xu, Zigong, additional, Kooi, Jason, additional, Woodham, Lloyd D., additional, Tripathi, Durgesh, additional, Young, Peter, additional, López-Portela, Cynthia, additional, Cuesta, Manuel Enrique, additional, and Wilson, Lynn, additional

Published
2023
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86. Magnetic Energy Powers the Corona: How We Can Understand its 3D Storage & Release

Author

Caspi, Amir, primary, Seaton, Daniel, additional, Casini, Roberto, additional, Downs, Cooper, additional, Gibson, Sarah, additional, Gilbert, Holly, additional, Glesener, Lindsay, additional, Guidoni, Silvina, additional, Hughes, J. Marcus, additional, McKenzie, David, additional, Plowman, Joseph, additional, Reeves, Katharine, additional, Saint-Hilaire, Pascal, additional, Shih, Albert Y., additional, West, Matthew, additional, Alaoui, Meriem, additional, Alexander, David, additional, Allred, Joel C., additional, Antiochos, Spiro, additional, Ashfield, William, additional, Ballai, Istvan, additional, Barata, Teresa, additional, Barta, Miroslav, additional, Benz, Arnold O., additional, Berlicki, Arkadiusz, additional, Bradshaw, Stephen J., additional, Bröse, Malte, additional, Buitrago-Casas, Juan Camilo, additional, Cassak, Paul, additional, Chamberlin, Phillip, additional, Che, Haihong, additional, Chen, Thomas Y., additional, Chen, Bin, additional, Cheng, Xin, additional, Christe, Steven, additional, Comisso, Luca, additional, Dahlin, Joel, additional, Nolfo, Georgia de, additional, Dennis, Brian, additional, Dickson, Ewan C. M., additional, Drake, James, additional, Dudík, Jaroslav, additional, Dzifcakova, Elena, additional, Emslie, Gordon, additional, Erdelyi, Robertus, additional, Farid, Samaiyah, additional, Fleishman, Gregory, additional, French, Ryan, additional, Gallagher, Peter T., additional, Gan, Weiqun, additional, Gary, Dale, additional, Guo, Fan, additional, Hayes, Laura A., additional, Hudson, Hugh, additional, Ji, Hantao, additional, Jones, Andrew R., additional, Kansabanik, Devojyoti, additional, Kawate, Tomoko, additional, Kerr, Graham S., additional, Keshav, Aggarwal, additional, Knuth, Trevor, additional, Kobelski, Adam, additional, Kooi, Jason, additional, Kumari, Anshu, additional, Lee, Jeongwoo, additional, Li, Ying, additional, Longo, Francesco, additional, Maharana, Anwesha, additional, Mandrini, Cristina H., additional, Oliveros, Juan Carlos Martinez, additional, Mason, James Paul, additional, Mason, E. I., additional, Massone, Anna Maria, additional, McAteer, R. T. James, additional, McConnell, Mark, additional, McTiernan, James, additional, Mitchell, J. Grant, additional, Mohan, Atul, additional, Motorina, Galina, additional, Mrozek, Tomasz, additional, Musset, Sophie, additional, Narukage, Noriyuki, additional, Nayak, Sushree S., additional, Nitta, Nariaki, additional, Panesar, Navdeep, additional, Pariat, Etienne, additional, Piana, Michele, additional, Pohjolainen, Silja, additional, Qiu, Jiong, additional, Reale, Fabio, additional, Rivera, Yeimy, additional, Rozelot, Jean Pierre, additional, Sarkar, Ranadeep, additional, Setterberg, William, additional, Shaik, Shaheda Begum, additional, Shaikh, Zubair, additional, Sharma, Rohit, additional, Skokic, Ivica, additional, Stores, Morgan, additional, Struminsky, Alexei, additional, Sylwester, Janusz, additional, Takahashi, Tadayuki, additional, Tiwari, Sanjiv, additional, Tsiklauri, David, additional, Vievering, Juliana T., additional, Warmuth, Alexander, additional, White, Stephen, additional, and Zimovets, Ivan V., additional

Published
2023
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88. Temporal trends in admissions for atrial fibrillation and severe bleeding in England: an 18-year longitudinal analysis.

Author

Seidu, Samuel, Gillies, Clare, Zaccardi, Francesco, Reeves, Katharine, Gallier, Suzy, and Khunti, Kamlesh

Abstract

Objective. Temporal trends in admissions for atrial fibrillation (AF) and severe bleeding associated with AF vary worldwide. We aimed to explore their temporal trends in England and their relation to the introduction of DOACs in 2014 in the UK. Design. This longitudinal ecological study utilised aggregated data that was extracted from the Hospital Episode Statistics database, which captured annual admissions for AF and severe bleeding associated with AF between 2001 and 2018. Trends in admissions over the study period and across age groups, gender and regions in England were assessed. Results. In total, there were 11,292,177 admissions for AF and 324,851 admissions for severe bleeding associated with AF. There was a steady rise in admissions for AF from 2001 to 2017 (204,808 to 1,109,295; p for trend<.001). A similar trend was observed for severe bleeding (4940 to 30,169; p for trend <.001), but the increase dropped slightly between 2013 and 2014 and continued thereafter. Conclusions. There was a rise in admissions for AF and severe bleeding in England between 2001 and 2018. There is little evidence that the slight drop in admissions for severe bleeding between 2013 and 2014 may have been caused by the introduction of DOACs in 2014. Contributors to these trends need urgent exploration. [ABSTRACT FROM AUTHOR]

Published
2023
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89. Defining the Middle Corona

Author

West, Matthew J, Seaton, Daniel B, Wexler, David B, Raymond, John C, Del Zanna, Giulio, Rivera, Yeimy J, Kobelski, Adam R, Chen, Bin, DeForest, Craig, Golub, Leon, Caspi, Amir, Gilly, Chris R, Kooi, Jason E, Meyer, Karen A, Alterman, Benjamin L, Alzate, Nathalia, Andretta, Vincenzo, Auchère, Frédéric, Banerjee, Dipankar, Berghmans, David, Chamberlin, Phillip, Chitta, Lakshmi Pradeep, Downs, Cooper, Giordano, Silvio, Harra, Louise, Higginson, Aleida, Howard, Russell A, Kumar, Pankaj, Mason, Emily, Mason, James P, Morton, Richard J, Nykyri, Katariina, Patel, Ritesh, Rachmeler, Laurel, Reardon, Kevin P, Reeves, Katharine K, Savage, Sabrina, Thompson, Barbara J, Van Kooten, Samuel J, Viall, Nicholeen M, Vourlidas, Angelos, Zhukov, Andrei N, West, Matthew J [0000-0002-0631-2393], Seaton, Daniel B [0000-0002-0494-2025], Wexler, David B [0000-0002-5763-6267], Raymond, John C [0000-0002-7868-1622], Del Zanna, Giulio [0000-0002-4125-0204], Rivera, Yeimy J [0000-0002-8748-2123], Kobelski, Adam R [0000-0002-4691-1729], Chen, Bin [0000-0002-0660-3350], DeForest, Craig [0000-0002-7164-2786], Golub, Leon [0000-0001-9638-3082], Caspi, Amir [0000-0001-8702-8273], Gilly, Chris R [0000-0003-0021-9056], Kooi, Jason E [0000-0002-5595-2522], Meyer, Karen A [0000-0001-6046-2811], Alterman, Benjamin L [0000-0001-6673-3432], Alzate, Nathalia [0000-0001-5207-9628], Andretta, Vincenzo [0000-0003-1962-9741], Auchère, Frédéric [0000-0003-0972-7022], Banerjee, Dipankar [0000-0003-4653-6823], Berghmans, David [0000-0003-4052-9462], Chamberlin, Phillip [0000-0003-4372-7405], Chitta, Lakshmi Pradeep [0000-0002-9270-6785], Downs, Cooper [0000-0003-1759-4354], Giordano, Silvio [0000-0002-3468-8566], Harra, Louise [0000-0001-9457-6200], Higginson, Aleida [0000-0003-1380-8722], Howard, Russell A [0000-0001-9027-8249], Kumar, Pankaj [0000-0001-6289-7341], Mason, Emily [0000-0002-8767-7182], Mason, James P [0000-0002-3783-5509], Morton, Richard J [0000-0001-5678-9002], Nykyri, Katariina [0000-0002-6905-9487], Patel, Ritesh [0000-0001-8504-2725], Rachmeler, Laurel [0000-0002-3770-009X], Reardon, Kevin P [0000-0001-8016-0001], Reeves, Katharine K [0000-0002-6903-6832], Savage, Sabrina [0000-0002-6172-0517], Thompson, Barbara J [0000-0001-6952-7343], Van Kooten, Samuel J [0000-0002-4472-8517], Viall, Nicholeen M [0000-0003-1692-1704], Vourlidas, Angelos [0000-0002-8164-5948], Zhukov, Andrei N [0000-0002-2542-9810], and Apollo - University of Cambridge Repository

Subjects
Corona
Abstract

The middle corona, the region roughly spanning heliocentric distances from 1.5 to 6 solar radii, encompasses almost all of the influential physical transitions and processes that govern the behavior of coronal outflow into the heliosphere. The solar wind, eruptions, and flows pass through the region, and they are shaped by it. Importantly, the region also modulates inflow from above that can drive dynamic changes at lower heights in the inner corona. Consequently, the middle corona is essential for comprehensively connecting the corona to the heliosphere and for developing corresponding global models. Nonetheless, because it is challenging to observe, the region has been poorly studied by both major solar remote-sensing and in-situ missions and instruments, extending back to the Solar and Heliospheric Observatory (SOHO) era. Thanks to recent advances in instrumentation, observational processing techniques, and a realization of the importance of the region, interest in the middle corona has increased. Although the region cannot be intrinsically separated from other regions of the solar atmosphere, there has emerged a need to define the region in terms of its location and extension in the solar atmosphere, its composition, the physical transitions that it covers, and the underlying physics believed to shape the region. This article aims to define the middle corona, its physical characteristics, and give an overview of the processes that occur there.

Published
2023

90. Heating Features of Interesting Supra-Arcade Downflows

Author

Li, Zhuofei, Kittrell, Deondre, Reeves, Katharine K, Weber, Mark, Mckenzie, David E, and Michael Freed

Subjects
Solar Physics
Abstract

Supra-arcade downflows (SADs) have been observed above flare loops during the decay phase of flare. They appear as tadpole-like dark plasma voids traveling towards the Sun. In areas surrounding where they appear, temperatures are often high. We aim to investigate temperature and heating mechanism of SADs. We apply our analysis to the M1.7 flare that occurred on 2012 July 12 and was observed by the Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory. There are many obvious SADs above the arcade during this event in the AIA 131 Å channel. We calculate the differential emission measure and emission measure weighted temperature with AIA data in the region where SADs are concentrated. We find that the temperature in SADs region tends to be lower than the surrounding plasma. We also calculate velocities of SADs using the Fourier Local Correlation Tracking (FLCT, Fisher & Welsch, 2008) method to derive velocities in the supra-arcade region. Using corks to track the calculated velocities, we find our velocity results are consistent with the SAD motions in the AIA 131 Å intensity movie. We use the velocities to derive the adiabatic heating caused by the compression of plasma. Preliminary results indicate that there is adiabatic heating in front of the SADs.

Published
2019

91. The First Flight of the Marshall Grazing Incidence X-Ray Spectrometer (MaGIXS)

Author

Savage, Sabrina L., primary, Winebarger, Amy R., additional, Kobayashi, Ken, additional, Athiray, P. S., additional, Beabout, Dyana, additional, Golub, Leon, additional, Walsh, Robert W., additional, Beabout, Brent, additional, Bradshaw, Stephen, additional, Bruccoleri, Alexander R., additional, Champey, Patrick R., additional, Cheimets, Peter, additional, Cirtain, Jonathan, additional, DeLuca, Edward E., additional, Del Zanna, Giulio, additional, Dudík, Jaroslav, additional, Guillory, Anthony, additional, Haight, Harlan, additional, Heilmann, Ralf K., additional, Hertz, Edward, additional, Hogue, William, additional, Kegley, Jeffery, additional, Kolodziejczak, Jeffery, additional, Madsen, Chad, additional, Mason, Helen, additional, McKenzie, David E., additional, Ranganathan, Jagan, additional, Reeves, Katharine K., additional, Robertson, Bryan, additional, Schattenburg, Mark L., additional, Scholvin, Jorg, additional, Siler, Richard, additional, Testa, Paola, additional, Vigil, Genevieve D., additional, Warren, Harry P., additional, Watkinson, Benjamin, additional, Weddendorf, Bruce, additional, and Wright, Ernest, additional

Published
2023
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92. The First Flight of the Marshall Grazing Incidence X-Ray Spectrometer (MaGIXS)

Author

Savage, Sabrina L., Winebarger, Amy R., Kobayashi, Ken, Athiray, P. S., Beabout, Dyana, Golub, Leon, Walsh, Robert William, Beabout, Brent, Bradshaw, Stephen, Bruccoleri, Alexander R., Champey, Patrick R., Cheimets, Peter, Cirtain, Jonathan, DeLuca, Edward E., Del Zanna, Giulio, Dudík, Jaroslav, Guillory, Anthony, Haight, Harlan, Heilmann, Ralf K., Hertz, Edward, Hogue, William, Kegley, Jeffery, Kolodziejczak, Jeffery, Madsen, Chad, Mason, Helen, McKenzie, David E., Ranganathan, Jagan, Reeves, Katharine K., Robertson, Bryan, Schattenburg, Mark L., Scholvin, Jorg, Siler, Richard, Testa, Paola, Vigil, Genevieve D., Warren, Harry P., Watkinson, Benjamin, Weddendorf, Bruce, Wright, Ernest, Savage, Sabrina L., Winebarger, Amy R., Kobayashi, Ken, Athiray, P. S., Beabout, Dyana, Golub, Leon, Walsh, Robert William, Beabout, Brent, Bradshaw, Stephen, Bruccoleri, Alexander R., Champey, Patrick R., Cheimets, Peter, Cirtain, Jonathan, DeLuca, Edward E., Del Zanna, Giulio, Dudík, Jaroslav, Guillory, Anthony, Haight, Harlan, Heilmann, Ralf K., Hertz, Edward, Hogue, William, Kegley, Jeffery, Kolodziejczak, Jeffery, Madsen, Chad, Mason, Helen, McKenzie, David E., Ranganathan, Jagan, Reeves, Katharine K., Robertson, Bryan, Schattenburg, Mark L., Scholvin, Jorg, Siler, Richard, Testa, Paola, Vigil, Genevieve D., Warren, Harry P., Watkinson, Benjamin, Weddendorf, Bruce, and Wright, Ernest

Abstract

The Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) sounding rocket experiment launched on 2021 July 30 from the White Sands Missile Range in New Mexico. MaGIXS is a unique solar observing telescope developed to capture X-ray spectral images of coronal active regions in the 6–24 Å wavelength range. Its novel design takes advantage of recent technological advances related to fabricating and optimizing X-ray optical systems, as well as breakthroughs in inversion methodologies necessary to create spectrally pure maps from overlapping spectral images. MaGIXS is the first instrument of its kind to provide spatially resolved soft X-ray spectra across a wide field of view. The plasma diagnostics available in this spectral regime make this instrument a powerful tool for probing solar coronal heating. This paper presents details from the first MaGIXS flight, the captured observations, the data processing and inversion techniques, and the first science results.

Published
2023

100. EUV imaging and spectroscopy for improved space weather forecasting

Author

Golub Leon, Cheimets Peter, DeLuca Edward E., Madsen Chad A., Reeves Katharine K., Samra Jenna, Savage Sabrina, Winebarger Amy, and Bruccoleri Alexander R.

Subjects
coronal mass ejection, space weather forecasts, solar corona, euv instrumentation, Meteorology. Climatology, QC851-999
Abstract

Accurate predictions of harmful space weather effects are mandatory for the protection of astronauts and other assets in space, whether in Earth or lunar orbit, in transit between solar system objects, or on the surface of other planetary bodies. Because the corona is multithermal (i.e., structured not only in space but also in temperature), wavelength-separated data provide crucial information that is not available to imaging methods that integrate over temperature. The extreme ultraviolet (EUV) wavelengths enable us to focus directly on high temperature coronal plasma associated with solar flares, coronal mass ejections (CMEs), and shocked material without being overwhelmed by intensity from the solar disk. Both wide-field imaging and spectroscopic observations of the solar corona taken from a variety of orbits (e.g., Earth, L1, or L5) using suitably-chosen EUV instrumentation offer the possibility of addressing two major goals to enhance our space weather prediction capability, namely: (1) Improve our understanding of the coronal conditions that control the opening and closing of the corona to the heliosphere and consequent solar wind streams, and (2) Improve our understanding of the physical processes that control the early evolution of CMEs and the formation of shocks, from the solar surface out into the extended corona.

Published
2020
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