Zobrazeno 1 - 10
of 2 747
pro vyhledávání: '"Exosphere"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 21, Pp n/a-n/a (2024)
Abstract Mercury's surface undergoes large temperature gradients between day and night, which repeats periodically over the same longitudes due to its 3:2 spin‐orbit resonance. This effect combined with the orbit's eccentricity, creates hot and col
Externí odkaz:
https://doaj.org/article/71347027d22c49d08482ae61c0352388
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Remote sensing observations of far-ultraviolet (FUV) emissions have been used to estimate 3D neutral hydrogen (H) density models of the terrestrial exosphere under solar minimum (2008) and solar maximum (2013 and 2015) conditions. Specifically, we us
Externí odkaz:
https://doaj.org/article/e0d6acf96aa041f883cc11cc8a15ffa5
Autor:
Hyunju K. Connor, Jaewoong Jung, Liying Qian, Eric K. Sutton, Gonzalo Cucho-Padin, Morgen Crow, Sang-Yun Lee
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Recent studies of TWINS Lyman-α observations have reported an increase in geocoronal column brightness during geomagnetic storms, indicating enhanced exospheric hydrogen atom density (NH). This suggests a complex role of exospheric neutrals in deter
Externí odkaz:
https://doaj.org/article/208e0db6fc3e4d79b67464933e23e048
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
The most abundant neutral constituent in the exospheric region (i.e., beyond ≈ 500 km altitude) is the atomic hydrogen (H); however, its density distributions predicted by physics-based models have been challenged by satellite-based observations of
Externí odkaz:
https://doaj.org/article/75a543723b7c4e6ca1243820f6ea92d9
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Weijie Sun, Ryan M. Dewey, Xianzhe Jia, Jim M. Raines, James A. Slavin, Yuxi Chen, Tai Phan, Gangkai Poh, Shaosui Xu, Anna Milillo, Robert Lillis, Yoshifumi Saito, Stefano Livi, Stefano Orsini
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 13, Pp n/a-n/a (2024)
Abstract This study investigates the escape of Mercury's sodium‐group ions (Na+‐group, including ions with m/q from 21 to 30 amu/e) and their dependence on true anomaly angle (TAA), that is, Mercury's orbital phase around the Sun, using measureme
Externí odkaz:
https://doaj.org/article/4f275d61617241f8b1fc6b49c6201356
Publikováno v:
Experimental Astronomy. Apr2018, Vol. 45 Issue 2, p147-163. 17p.
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 6, Pp n/a-n/a (2024)
Abstract The variability of Mars exosphere over monthly to solar‐cycle scales at 251 and 412 km altitude is quantified by analysis of 41‐Ls mean densities derived from precise orbit determination of the Mars Reconnaissance Orbiter (MRO) and Mars
Externí odkaz:
https://doaj.org/article/f366cdaca6f54a82accc598fbe0ef1a5
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-12 (2023)
Abstract In celestial bodies with tenuous collisionless atmospheres, such as Mercury, the spatial distribution of the exosphere is expected to reflect the surface composition. In this study, we discuss whether the distributions of Mg, Ca, and Na, the
Externí odkaz:
https://doaj.org/article/e56feacdea8a4055b4dc0f65b000af03
Publikováno v:
Geoscientific Instrumentation, Methods & Data Systems (GI). 2017, Vol. 6 Issue 1, p1-8. 8p.