Zobrazeno 1 - 10
of 195
pro vyhledávání: '"R C, Allen"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Externí odkaz:
https://doaj.org/article/20e04e6f9591409ebe9559c8aa817ba3
Autor:
G. M. Mason, A. Kouloumvakos, G. C. Ho, R. C. Allen, R. Gómez-Herrero, R. F. Wimmer-Schweingruber, J. Rodríguez-Pacheco
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 54 (2024)
We have surveyed ^3 He-rich events on the Solar Orbiter mission from 2020 April to 2024 April, selecting isolated injections whose rollover ^3 He spectral shape is presumed to represent the initial acceleration state, unprocessed by subsequent activi
Externí odkaz:
https://doaj.org/article/75af4e74d00b4f73b513387b07d108e3
Ultraviolet and magnetic perspectives at Reiner Gamma and the implications for solar wind weathering
Autor:
C. D. Waller, J. T. S. Cahill, K. D. Retherford, A. R. Hendrix, R. C. Allen, S. K. Vines, H. M. Meyer, A. A. Wirth-Singh
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
With the wealth of missions selected to visit the lunar surface in the decade ahead, preparatory investigations into surface conditions are underway to explore potential challenges and science returns during these missions. One such mission, Lunar Ve
Externí odkaz:
https://doaj.org/article/2479f2e9303b4c389199e5b2a3e23686
Autor:
G. C. Ho, G. M. Mason, R. C. Allen, R. F. Wimmer-Schweingruber, J. Rodríguez-Pacheco, R. Gómez-Herrero
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
Solar Orbiter, a joint ESA/NASA mission, is studying the Sun and inner heliosphere in greater detail than ever before. Launched in February 2020, Solar Orbiter has already completed its first three orbits, reaching perihelia of 0.5 au from the Sun in
Externí odkaz:
https://doaj.org/article/e980d02eee294c0f86e423b7f6c738d0
Autor:
G. M. Mason, I. Roth, N. V. Nitta, R. Bučík, D. Lario, G. C. Ho, R. C. Allen, A. Kouloumvakos, R. F. Wimmer-Schweingruber, J. Rodriguez-Pacheco
Publikováno v:
The Astrophysical Journal, Vol 957, Iss 2, p 112 (2023)
We present Solar Orbiter energetic particle observations of two ^3 He-rich events with features more clearly observed than in prior studies. The event of 2022 November 9 observed from 0.59 au contained hundreds of ultraheavy (UH; mass >78 amu) ions w
Externí odkaz:
https://doaj.org/article/bf083efeccb84f639f6bea19a314ec03
Autor:
A. Kouloumvakos, G. M. Mason, G. C. Ho, R. C. Allen, Robert F. Wimmer-Schweingruber, A. P. Rouillard, J. Rodriguez-Pacheco
Publikováno v:
The Astrophysical Journal, Vol 956, Iss 2, p 123 (2023)
Observations of Solar Energetic Particles (SEPs) using the Suprathermal Ion Spectrograph (SIS), which is part of the Energetic Particle Detector suite on the Solar Orbiter mission, present an unprecedented opportunity to investigate the composition a
Externí odkaz:
https://doaj.org/article/4df70f608ac44744a4a291aba91f2ea0
Autor:
S. T. Badman, P. Riley, S. I. Jones, T. K. Kim, R. C. Allen, C. N. Arge, S. D. Bale, C. J. Henney, J. C. Kasper, P. Mostafavi, N. V. Pogorelov, N. E. Raouafi, M. L. Stevens, J. L. Verniero
Publikováno v:
Journal of Geophysical Research: Space Physics. 128
Drawing connections between heliospheric spacecraft and solar wind sources is a vital step in understanding the evolution of the solar corona into the solar wind and contextualizing \textit{in situ} timeseries. Furthermore, making advanced prediction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c29cf37219eb86efa69c8207abf545c
https://doi.org/10.1029/2023ja031359
https://doi.org/10.1029/2023ja031359
Autor:
N. E. Raouafi, L. Matteini, J. Squire, S. T. Badman, M. Velli, K. G. Klein, C. H. K. Chen, W. H. Matthaeus, A. Szabo, M. Linton, R. C. Allen, J. R. Szalay, R. Bruno, R. B. Decker, M. Akhavan-Tafti, O. V. Agapitov, S. D. Bale, R. Bandyopadhyay, K. Battams, L. Berčič, S. Bourouaine, T. A. Bowen, C. Cattell, B. D. G. Chandran, R. Chhiber, C. M. S. Cohen, R. D’Amicis, J. Giacalone, P. Hess, R. A. Howard, T. S. Horbury, V. K. Jagarlamudi, C. J. Joyce, J. C. Kasper, J. Kinnison, R. Laker, P. Liewer, D. M. Malaspina, I. Mann, D. J. McComas, T. Niembro-Hernandez, T. Nieves-Chinchilla, O. Panasenco, P. Pokorný, A. Pusack, M. Pulupa, J. C. Perez, P. Riley, A. P. Rouillard, C. Shi, G. Stenborg, A. Tenerani, J. L. Verniero, N. Viall, A. Vourlidas, B. E. Wood, L. D. Woodham, T. Woolley
Launched on 12 Aug. 2018, NASA's Parker Solar Probe had completed 13 of its scheduled 24 orbits around the Sun by Nov. 2022. The mission's primary science goal is to determine the structure and dynamics of the Sun's coronal magnetic field, understand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::564aec0a61159d55b3ccc75c260fcd40
http://arxiv.org/abs/2301.02727
http://arxiv.org/abs/2301.02727
Particles measured in large gradual solar energetic particle (SEP) events are believed to be predominantly accelerated at shocks driven by coronal mass ejections (CMEs). Ion charge state and composition analyses suggest that the origin of the seed pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7187bd7ad8a3b547946d457dbadbf952
Autor:
G. M. Mason, G. C. Ho, R. C. Allen, A. Kouloumvakos, R. F. Wimmer-Schweingruber, J. Rodriguez-Pacheco
Publikováno v:
Astronomy & Astrophysics. 673:L12
Context. The Solar Orbiter spacecraft made its first close perihelion passes in 2022, reaching 0.32 au on 26 March and 0.29 au on 12 October. Transient activity was relatively low, making it possible to perform measurements of the quiet-time suprathe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78cf8aef4e6d2fc29a2d0ad37ad24fb7
https://doi.org/10.1051/0004-6361/202345978
https://doi.org/10.1051/0004-6361/202345978