Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Michael Chaffin"'
Autor:
Fatma Hussain Lootah, Justin Deighan, Matthew Fillingim, Sonal Jain, J. Scott Evans, Hessa Al Matroushi, Michael Chaffin, Gregory Holsclaw, Robert Lillis, Hour Al Mazmi, John Correira, Scott England
Publikováno v:
Geophysical Research Letters, Vol 49, Iss 17, Pp n/a-n/a (2022)
Abstract The Emirates Mars Ultraviolet Spectrometer (EMUS) is a far ultraviolet spectrometer on‐board the Emirates Mars Mission's (EMM) which arrived at Mars on 9 February 2021. EMUS is designed to observe key neutral species in the Martian thermos
Externí odkaz:
https://doaj.org/article/e65b0b6475e74987bb4b7764b6699984
Autor:
Matthew Fillingim, Robert Lillis, Anna Mittelholz, Hessa AlMatroushi, Hoor AlMazmi, Michael Chaffin, Peter Chi, Krishnaprasad Chirakkil, John Corriera, Justin Deighan, Scott England, Scott Evans, Heidi Haviland, Greg Holsclaw, Sonal Jain, Catherine Johnson, Steven Joy, Benoit Langlais, Fatma Lootah, Susarla Raghuram
The Emirates Mars Ultraviolet Spectrometer (EMUS) onboard the Emirates Mars Mission spacecraft, which observes ultraviolet emission between approximately 100 and 170 nm, has observed multiple instances of nightside aurora at Mars. Variations in the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5294224ee218215d527b6caa8dc21d5f
https://doi.org/10.5194/egusphere-egu23-2149
https://doi.org/10.5194/egusphere-egu23-2149
Autor:
Gregory Holsclaw, Justin Deighan, Michael Chaffin, Hessa Al Matroushi, Robert Lillis, Matthew Fillingim, Scott England, Sonal Jain, Fatma Lootah, Hoor Al Mazmi, Gabriel Bershenyi, Emily Pilinski, Thibaud Teil, Jeff Parker, Omran Sharaf
The Emirates Mars Mission (EMM) Hope probe launched on 20 Jul 2020 and entered Mars orbit on 9 Feb 2021, carrying a payload of 3 complementary instruments to characterize the global atmosphere across the full range of altitudes (surface to exosphere)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b3673bbaf247be1ce3f81455645b6dc
https://doi.org/10.5194/egusphere-egu23-10186
https://doi.org/10.5194/egusphere-egu23-10186
Autor:
Susarla Raghuram, Krishnaprasad Chirakkil, Justin Deighan, Michael Chaffin, Sonal Jain, Robert Lillis, Marko Gacesa, Matthew O. Fillingim, David Brain, Ed Thiemann, Frank Eparvier, Greg Holsclaw, Scott England, Scott Evans, Fatma Hussain Lootah, Hoor Abdelrahman Al Mazmi, Shannon Curry, Hessa Rashid Al Matroushi
Atomic hydrogen and oxygen are the dominant species in the Martian exosphere. Atomic hydrogen is essentially produced from the dissociation of H2O, whereas, hot oxygen atoms are populated by non-thermal processes such as the dissociative recombinatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0fae44e61d15a54a1cfc639103fcf33
https://doi.org/10.5194/egusphere-egu23-13324
https://doi.org/10.5194/egusphere-egu23-13324
Autor:
Justin Deighan, Michael Chaffin, Krishnaprasad Chirakkil, Hessa Al Matroushi, Robert Lillis, Matthew Fillingim, Scott England, Sonal Jain, Greg Holsclaw, Fatma Lootah, Hoor Al Mazmi, Susarla Raghuram, Frank Eparvier, Ed Thiemann, Phil Chamberlin, Shannon Curry
One of the primary objectives of the Emirates Mars Mission (EMM) is to study the seasonal variation of the upper atmosphere of Mars and associated changes in the escape of atmosphere to space. Here we present a preliminary analysis of the oxygen popu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ab234d92684b2d339a73765f2334bd0
https://doi.org/10.5194/egusphere-egu23-4712
https://doi.org/10.5194/egusphere-egu23-4712
The Emirates Mars Ultraviolet Spectrometer (EMUS) onboard the Emirates Mars Mission (EMM) observes the Martian dayglow at ultraviolet wavelengths (100-170 nm). EMUS disk observations show unexpected variations in atomic hydrogen, atomic oxygen, and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fefc6318d7f14aa66c506b4c74b16b7
https://doi.org/10.5194/egusphere-egu23-8656
https://doi.org/10.5194/egusphere-egu23-8656
Autor:
John Clarke, Dolon Bhattacharyya, Majd Mayyasi, Valery Shematovich, Dimitri Bisikalo, Jean-Yves Chaufray, Ed Thiemann, Jasper Halekas, Carl Schmidt, Jean-Loup Bertaux, Michael Chaffin, Nick Schneider
The history of water escape from Mars has been a topic of intense interest among the scientific community. Water escape from Mars is generally studied by measuring the escape rate of atomic hydrogen from its exosphere and tracing it back in time to d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa73f9f8766260d7ca40f8d399cfd287
https://doi.org/10.5194/egusphere-egu23-9581
https://doi.org/10.5194/egusphere-egu23-9581
Autor:
Michael Chaffin, Justin Deighan, Sonal Jain, Greg Holsclaw, Raghuram Susarla, Hoor AlMazmi, Krishnaprasad Chirakkil, John Correira, Scott England, Frank Eparvier, J. Scott Evans, Matt Fillingim, Rob Lillis, Fatma Lootah, Ed Thiemann, Shannon Curry, Hessa AlMatroushi
The surface of the planet Mars exhibits a record of dessiccation and oxidation, the legacy of significant water escape to space as hydrogen and oxygen. This H escape can be constrained using ultraviolet observations of the planet's upper atmosphere,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f834f579ec992b1c0668fcc83e251d16
https://doi.org/10.5194/egusphere-egu23-9200
https://doi.org/10.5194/egusphere-egu23-9200
Autor:
Christopher Fowler, Gwen Hanley, James McFadden, Jasper Halekas, Steven Schwartz, Christian Mazelle, Michael Chaffin, David Mitchell, Laila Andersson, Jared Espley, Robin Ramstad, Yaxue Dong, Shannon Curry
Mars is an unmagnetized planet meaning that it has no internally generated global dipole magnetic field; the solar wind interaction with Mars is thus highly dependent on upstream conditions that include the orientation of the Interplanetary Magnetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ace4ba6fa5b29f0febc68df23b1b5c9
https://doi.org/10.5194/epsc2022-233
https://doi.org/10.5194/epsc2022-233
Autor:
Robert Lillis, Justin Deighan, Sonal Jain, Greg Holsclaw, Matthew Fillingim, Krishnaprasad Chirakkil, Scott England, Michael Chaffin, David Brain, Hessa Al Matroushi, Fatma Lootah, Hoor Al Mazmi, Ed Thiemann, Frank Eparvier, Nick Schneider, Jasper Halekas, Suranga Ruhunusiri, Jared Espley, Jacob Gruesbeck, Shaosui Xu
Here we report on synoptic (or “disk”) observations of Martian discrete aurora in the extreme and far ultraviolet (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04d13329aabfb7a2401b5ca125014b65
https://doi.org/10.5194/epsc2022-724
https://doi.org/10.5194/epsc2022-724