Zobrazeno 1 - 10
of 152
pro vyhledávání: '"G. Randall Gladstone"'
Autor:
Michael A. Velez, Kurt D. Retherford, Vincent Hue, Joshua A. Kammer, Tracy M. Becker, G. Randall Gladstone, Michael W. Davis, Thomas K. Greathouse, Philippa M. Molyneux, Shawn M. Brooks, Ujjwal Raut, Maarten H. Versteeg
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 4, p 93 (2024)
Ultraviolet spectroscopy is a powerful method to study planetary surface composition through reflectance measurements, atmospheric composition through stellar/solar occultations, transits of other planetary bodies, and direct imaging of airglow and a
Externí odkaz:
https://doaj.org/article/296080a27f4f4b0ca548d1b63127ecef
Autor:
Wayne R. Pryor, G. Randall Gladstone, Kurt D. Retherford, W. Kent Tobiska, Gregory M. Holsclaw, Larry W. Esposito
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 2, p 117 (2024)
The Cassini Orbiter Ultraviolet Imaging Spectrograph (UVIS) obtained interplanetary hydrogen Ly α observations from 1999 to 2017, with mid-2004 to 2017 observations obtained from Saturn orbit. During its Saturn orbital phase, the spacecraft moved fr
Externí odkaz:
https://doaj.org/article/098bc60c367a4a7ab990ddb2acb3725a
Autor:
Jacob N. H. Abrahams, Francis Nimmo, Tracy M. Becker, G. Randall Gladstone, Kurt D. Retherford, Gregor Steinbrügge, Erwan Mazarico
Publikováno v:
Earth and Space Science, Vol 8, Iss 7, Pp n/a-n/a (2021)
Abstract Europa Clipper will arrive at Jupiter at the end of this decade and will explore Europa through a series of flybys. One of its many goals is to characterize Europa's topography and global shape using the Europa Imaging System and Radar for E
Externí odkaz:
https://doaj.org/article/eb36be5e39fb4e09a7215aa60b91bf13
Autor:
J. Hunter Waite, Thomas Greathouse, Shane Carberry Mogan, Rob Ebert, Jack Connerney, William Kurth, G. Randall Gladstone, Frederic Allegrini, Robert Johnson, Audrey Vorberger, Phillip Valek, George Clark, Scott Bolton, Candice Hansen-Koharcheck
Juno flew within 1053 km of the surface of Ganymede on June 7, 2021. A unique data set of the interaction of its magnetosphere with the magnetosphere of Jupiter was obtained during the flyby. Auroral imaging was carried out by the UVS experiment simu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a79ed4cc34e9e69fb32dfe016e4aaa0
https://doi.org/10.5194/egusphere-egu23-9005
https://doi.org/10.5194/egusphere-egu23-9005
Autor:
Ujjwal Raut, Benjamin D. Teolis, Joshua A. Kammer, Caleb J. Gimar, Joshua S. Brody, G. Randall Gladstone, Carly J. A. Howett, Silvia Protopapa, Kurt D. Retherford
We combine novel laboratory experiments and exospheric modeling to reveal that “dynamic” Ly-α photolysis of Plutonian methane generates a photolytic refractory distribution on Charon that increases with latitude, consistent with poleward darkeni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af482577c95bf44db2ac9b49de1fa6c8
https://ora.ox.ac.uk/objects/uuid:028cab08-0c03-453c-bba0-bfb381244bdb
https://ora.ox.ac.uk/objects/uuid:028cab08-0c03-453c-bba0-bfb381244bdb
Autor:
Rohini S. Giles, Vincent Hue, Thomas K. Greathouse, G. Randall Gladstone, Joshua A. Kammer, Maarten H. Versteeg, Bertrand Bonfond, Denis C. Grodent, Jean‐Claude Gérard, James A. Sinclair, Scott J. Bolton, Steven M. Levin
Publikováno v:
Journal of Geophysical Research: Planets. 128
Reflected sunlight observations from the Ultraviolet Spectrograph (UVS) on the Juno spacecraft were used to study the distribution of acetylene (C$_2$H$_2$) at Jupiter's south pole. We find that the shape of the C$_2$H$_2$ absorption feature varies s
Autor:
G. Randall Gladstone, Joachim Saur, P. Molyneux, Lorenz Roth, Nickolay Ivchenko, Denis Grodent, Kurt D. Retherford, Bertrand Bonfond
Publikováno v:
Nature Astronomy. 5:1043-1051
Ganymede's atmosphere is produced by charged particle sputtering and sublimation of its icy surface. Previous far-ultraviolet observations of the O{\small I\,}1356-{\AA} and O{\small I\,}1304-{\AA} oxygen emissions were used to infer sputtered molecu
Autor:
S. Alan Stern, Dana M. Hurley, Maarten H. Versteeg, G. Randall Gladstone, Michael W. Davis, Jasper Halekas, Anthony F. Egan, Paul D. Feldman, Kurt D. Retherford, Danielle Y. Wyrick, David E. Kaufmann, Thomas K. Greathouse, Wayne Pryor, Cesare Grava, Kathleen Mandt
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 501:4438-4451
We report a comprehensive study by the UV spectrograph LAMP (Lyman-Alpha Mapping Project) onboard the Lunar Reconnaissance Orbiter to map the spatial distribution and temporal evolution of helium atoms in the lunar exosphere, via spectroscopy of the
Autor:
Tod R. Lauer, Marc Postman, John R. Spencer, Harold A. Weaver, S. Alan Stern, G. Randall Gladstone, Richard P. Binzel, Daniel T. Britt, Marc W. Buie, Bonnie J. Buratti, Andrew F. Cheng, W. M. Grundy, Mihaly Horányi, J. J. Kavelaars, Ivan R. Linscott, Carey M. Lisse, William B. McKinnon, Ralph L. McNutt, Jeffrey M. Moore, J. I. Núñez, Catherine B. Olkin, Joel W. Parker, Simon B. Porter, Dennis C. Reuter, Stuart J. Robbins, Paul M. Schenk, Mark R. Showalter, Kelsi N. Singer, Anne. J. Verbiscer, Leslie A. Young
We used New Horizons LORRI images to measure the optical-band ($0.4\lesssim\lambda\lesssim0.9{\rm\mu m}$) sky brightness within a high galactic-latitude field selected to have reduced diffuse scattered light from the Milky Way galaxy (DGL), as inferr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dc802b0321b2a1b7590b2a9c643a947
Autor:
Thomas K. Greathouse, Maarten H. Versteeg, G. Randall Gladstone, Joshua A. Kammer, Vincent Hue, Michael W. Davis, Rohini Giles
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems. 7