Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Surface ices"'
Autor:
Richard J. Cartwright, Bryan J. Holler, William M. Grundy, Stephen C. Tegler, Marc Neveu, Ujjwal Raut, Christopher R. Glein, Tom A. Nordheim, Joshua P. Emery, Julie C. Castillo-Rogez, Eric Quirico, Silvia Protopapa, Chloe B. Beddingfield, Matthew M. Hedman, Katherine de Kleer, Riley A. DeColibus, Anastasia N. Morgan, Ryan Wochner, Kevin P. Hand, Geronimo L. Villanueva, Sara Faggi, Noemi Pinilla-Alonso, David E. Trilling, Michael M. Mueller
Publikováno v:
The Astrophysical Journal Letters, Vol 970, Iss 2, p L29 (2024)
The Uranian moon Ariel exhibits a diversity of geologically young landforms, with a surface composition rich in CO _2 ice. The origin of CO _2 and other species, however, remains uncertain. We report observations of Ariel’s leading and trailing hem
Externí odkaz:
https://doaj.org/article/c36f1579479842eab17c56f991c68054
Publikováno v:
The Astrophysical Journal Letters, Vol 962, Iss 2, p L29 (2024)
Europa’s surface is exposed to a constant flow of plasma from its ionosphere and Jupiter’s magnetosphere. As these particles flow onto the surface, an electrostatic surface potential forms. We investigate the electrostatic charging of Europa’s
Externí odkaz:
https://doaj.org/article/bf23554613114c79b4223b8981f654da
Autor:
Anna E. Engle, Jennifer Hanley, Sugata P. Tan, William M. Grundy, Stephen C. Tegler, Gerrick E. Lindberg, Jordan K. Steckloff, Shaelyn M. Raposa, Cecilia L. Thieberger, Shyanne Dustrud, Jessica J. Groven, Logan A. Pearce
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 10, p 224 (2024)
Titan is unique among the icy satellites in that it has a thick atmosphere, stable surficial bodies of liquid, and a precipitation system that promotes interactions between the two. Although Titan’s surface conditions are typically assumed to be ab
Externí odkaz:
https://doaj.org/article/2935275adc8c4e37891b4be7364475db
Autor:
Lauren R. Schurmeier, Gwendolyn E. Brouwer, Jonathan P. Kay, Sarah A. Fagents, Angela G. Marusiak, Steven D. Vance
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 9, p 211 (2024)
Titan’s impact craters are hundreds of meters shallower than expected, compared to similar-sized craters on Ganymede. Only 90 crater candidates have been identified, the majority of which have low certainty of an impact origin. Many processes have
Externí odkaz:
https://doaj.org/article/d18feabbf9ae487790f9956c55a7c304
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 36 (2024)
In the denser and colder regions of the interstellar medium (ISM), gas-phase sulfur is depleted by 2 or 3 orders of magnitude with respect to its cosmic abundance. Thus, which species are the main carriers of sulfur is an open question. Recent studie
Externí odkaz:
https://doaj.org/article/4e8be9c4c5ea42938f7d39f34c4c22a9
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 117 (2024)
Vapor pressure is a relevant quantity that is necessary in order to improve the study of the atmosphere dynamics that take place within astrophysical scenarios. The aim of this study was to obtain the vapor pressure values of the following molecules:
Externí odkaz:
https://doaj.org/article/bffede2876a14834b36c7065fb40ace4
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 2, p 134 (2024)
Infrared (IR) spectra of vapor-deposited amorphous water at low temperatures show two weak peaks at around 3720 and 3696 cm ^−1 assigned to free-OH stretching modes of two- and three-coordinated water molecules (so-called “dangling” OH bonds),
Externí odkaz:
https://doaj.org/article/51797128152842ff94d147ec8319ea15
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 1, p 63 (2024)
Of the about 300 gas-phase molecular species so far detected in the interstellar medium (ISM), mostly via observations of their rotational lines, around 40% contain nitrogen (N) atoms. Likewise, of the less than a dozen interstellar molecules, firmly
Externí odkaz:
https://doaj.org/article/a58a4698479545a5a8c47345179c4966
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 5, p 126 (2024)
Lunar cold traps are defined by extremely low sublimation rates, such that water ice could have accumulated in them. Here time-averaged sublimation rates are calculated for the north polar region of the Moon based on over 14 years of Diviner surface
Externí odkaz:
https://doaj.org/article/48213cbaa3e4471b8b827f5eb994a667
Autor:
Patrick D. Tribbett, Mark J. Loeffler
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 5, p 111 (2024)
NH _3 has long been predicted to be an important component of outer solar system bodies, yet detection of this compound suggests a low abundance or absence on many objects where it would be expected. Here, we demonstrate that a thermally driven oxida
Externí odkaz:
https://doaj.org/article/5055ee18d25a460d942d35a734867674