Zobrazeno 1 - 10
of 495
pro vyhledávání: '"David L Mitchell"'
Autor:
Shaosui Xu, David L. Mitchell, Phyllis Whittlesey, Ali Rahmati, Roberto Livi, Davin Larson, Janet G. Luhmann, Jasper S. Halekas, Takuya Hara, James P. McFadden, Marc Pulupa, Stuart D. Bale, Shannon M. Curry, Moa Persson
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Venus, lacking an intrinsic global dipole magnetic field, serves as a textbook example of an induced magnetosphere, formed by interplanetary magnetic fields (IMF) enveloping the planet. Yet, various aspects of its magnetospheric dynamics and
Externí odkaz:
https://doaj.org/article/1df29dba51f44d3196677a11429c24cc
Autor:
Long Cheng, Robert Lillis, Yuming Wang, Anna Mittelholz, Shaosui Xu, David L. Mitchell, Catherine Johnson, Zhenpeng Su, Jasper S. Halekas, Benoit Langlais, Tielong Zhang, Guoqiang Wang, Sudong Xiao, Zhuxuan Zou, Zhiyong Wu, Yutian Chi, Zonghao Pan, Kai Liu, Xinjun Hao, Yiren Li, Manming Chen, Jared Espley, Frank Eparvier, Shannon Curry
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 16, Pp n/a-n/a (2023)
Abstract The Martian bow shock stands as the first defense against the solar wind and shapes the Martian magnetosphere. Previous studies showed the correlation between the Martian bow shock location and solar wind parameters. Here we present direct e
Externí odkaz:
https://doaj.org/article/560c0450f5e24a12a884b1a0aa4d1ca7
Autor:
Shotaro Sakai, Hiromu Nakagawa, Justin Deighan, Sonal K. Jain, Kei Masunaga, Fuminori Tsuchiya, Naoki Terada, Majd Mayyasi, Nicholas M. Schneider, David L. Mitchell, Christian Mazelle, Mehdi Benna, Robert J. Lillis, Go Murakami, Shannon M. Curry, Kanako Seki
Publikováno v:
The Astrophysical Journal, Vol 977, Iss 2, p 226 (2024)
C ^+ emission is generated by electron impact, dissociative ionization, photoionization, and resonant scattering with carbon-related atoms, molecules, and ions in the Martian ionosphere and thermosphere. The contribution of each mechanism to the emis
Externí odkaz:
https://doaj.org/article/75ece0b585304f36aebe337a8ed61cdf
Autor:
Shaosui Xu, David L. Mitchell, Jasper S. Halekas, James P. McFadden, Christopher M. Fowler, Kathleen Hanley, Gina A. DiBraccio, Christian Mazelle, Hassan Akbari, Shannon M. Curry
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 246 (2024)
It has been long observed at Mars that electron fluxes are enhanced during the tail current sheet crossings, of which the cause is not well understood. We use a novel approach to reveal one of the electron energization mechanisms with observations fr
Externí odkaz:
https://doaj.org/article/4b0a454b3e7c43628ca3e082fba30bce
Autor:
Chi Zhang, Hongyang Zhou, Chuanfei Dong, Yuki Harada, Masatoshi Yamauchi, Shaosui Xu, Hans Nilsson, Yusuke Ebihara, Shannon M. Curry, Junfeng Qin, David L. Mitchell, David A. Brain
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 153 (2024)
Mars lacks a global intrinsic dipole field but possesses localized crustal fields, making it unique in the solar system. Recent observations revealed that electrons can be injected into the crustal fields, and exhibit drift-dispersed bursts due to th
Externí odkaz:
https://doaj.org/article/a6f9add50b4d47ef81ad90bd4ec1cd79
Autor:
Shaosui Xu, Janet G. Luhmann, David L. Mitchell, Tristan Weber, David A. Brain, Yingjuan Ma, Shannon M. Curry, Gina A. DiBraccio, Jasper Halekas, Suranga Ruhunusiri, Christian Mazelle, Robert J. Lillis, Benoit Langlais
Publikováno v:
The Astrophysical Journal Letters, Vol 957, Iss 2, p L29 (2023)
Mars’s magnetosphere is hybrid, having contributions from both an induced magnetosphere like Venus and the localized crustal magnetic fields. However, the planetary fields also include large-scale, more global components. In this study, we investig
Externí odkaz:
https://doaj.org/article/d50c9a857049408a9b3f2d8a6ab733d6
Autor:
Shaosui Xu, David L. Mitchell, James P. McFadden, Christopher M. Fowler, Kathleen Hanley, Tristan Weber, David A. Brain, Yingjuan Ma, Gina A. DiBraccio, Christian Mazelle, Shannon M. Curry
Publikováno v:
Journal of Geophysical Research: Space Physics. 128
Autor:
Shaosui Xu, David L. Mitchell, James P. McFadden, Christopher M. Fowler, Kathleen Hanley, Tristan Weber, David A. Brain, Gina A. DiBraccio, Michael W. Liemohn, Robert J. Lillis, Jasper S. Halekas, Suranga Ruhunusiri, Laila Andersson, Christian Mazelle, Shannon M. Curry
Publikováno v:
Journal of Geophysical Research Space Physics
Journal of Geophysical Research Space Physics, 2022, 127, ⟨10.1029/2022JA030801⟩
Journal of Geophysical Research Space Physics, 2022, 127, ⟨10.1029/2022JA030801⟩
International audience; Discrete aurorae have been observed at Mars by multiple spacecraft, including Mars Express, Mars Atmosphere and Volatile EvolutioN (MAVEN), and most recently the United Arab Emirates Hope spacecraft. Meanwhile, there have been
Autor:
Robin Ramstad, David A. Brain, Yaxue Dong, Jasper S. Halekas, James M. McFadden, David L. Mitchell, Jared Espley, Francis G. Eparvier, Bruce M. Jakosky
Publikováno v:
Icarus. 397:115491
Publikováno v:
Journal of Craniofacial Surgery. 33:375-377
Humanitarian mission trips have been organized by several residency programs and organizations to cater to surgical care in underdeveloped countries. While there is cross-talk on the existence of such opportunities, there is a paucity of guidance to