Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Paul R, Mahaffy"'
Autor:
Joanna V. Clark, Brad Sutter, Amy C. McAdam, Christine A. Knudson, Patrick Casbeer, Valerie M. Tu, Elizabeth B. Rampe, Douglas W. Ming, Paul D. Archer, Paul R. Mahaffy, Charles Malespin
Publikováno v:
Minerals, Vol 14, Iss 3, p 218 (2024)
The Sample Analysis at Mars-Evolved Gas Analyzer (SAM-EGA) on the Curiosity rover detected hydrogen chloride (HCl) and sulfur dioxide (SO2) gas evolutions above 600 °C and 700 °C, respectively, from several drilled rock and soil samples collected i
Externí odkaz:
https://doaj.org/article/8fd022e7886341beabb77808a040fb90
Autor:
Daniel Y. Lo, Sushil K. Atreya, Michael H. Wong, Melissa G. Trainer, Heather B. Franz, Timothy H. McConnochie, Daniel Viúdez-Moreiras, Paul R. Mahaffy, Charles A. Malespin
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 3, p 65 (2024)
We explore and evaluate various processes that could drive the variations in the volume mixing ratio (VMR) of atmospheric O _2 observed by the quadrupole mass spectrometer (QMS) of the Sample Analysis at Mars (SAM) instrument suite on the Mars Scienc
Externí odkaz:
https://doaj.org/article/43609b8ea99f4dee84757175889c13eb
Autor:
Christopher H. House, Heather B. Franz, Gregory M. Wong, Paul R. Mahaffy, Alexander Pavlov, Andrew Steele, Sushil Atreya, Charles A. Malespin
Publikováno v:
Proceedings of the National Academy of Sciences. 119
Autor:
Jennifer C. Stern, Charles A. Malespin, Jennifer L. Eigenbrode, Christopher R. Webster, Greg Flesch, Heather B. Franz, Heather V. Graham, Christopher H. House, Brad Sutter, Paul Douglas Archer, Amy E. Hofmann, Amy C. McAdam, Douglas W. Ming, Rafael Navarro-Gonzalez, Andrew Steele, Caroline Freissinet, Paul R. Mahaffy
Publikováno v:
Proceedings of the National Academy of Sciences. 119
The Sample Analysis at Mars instrument stepped combustion experiment on a Yellowknife Bay mudstone at Gale crater, Mars revealed the presence of organic carbon of Martian and meteoritic origins. The combustion experiment was designed to access refrac
Publikováno v:
Journal of Geophysical Research: Planets. 127
This is the data set to accompany our publication, "Neutral Composition and Horizontal Variations of the Martian Upper Atmosphere from MAVEN NGIMS" in Journal of Geophysical Research: Planets. The repository contains .csv files. Within the files are
Autor:
Yuanyuan He, Pin Lu, Paul R. Mahaffy, Charles Malespin, Melissa Guzman, Cyril Szopa, Amy J. Williams, Samuel Teinturier, Maeva Millan, Sarah Stewart Johnson, Michel Cabane, Hervé Cottin, Jennifer C. Stern, Jennifer L. Eigenbrode, Rafael Navarro-González, Vincent Butin, Fabien Stalport, Naila Chaouche-Mechidal, Caroline Freissinet, Arnaud Buch, D. Coscia, Daniel P. Glavin, Jamila El Bekri, Jean-Yves Bonnet
Publikováno v:
Astrobiology
Astrobiology, Mary Ann Liebert, 2021, 21 (3), pp.279-297. ⟨10.1089/ast.2020.2252⟩
Astrobiology, Mary Ann Liebert, 2021, 21 (3), pp.279-297. ⟨10.1089/ast.2020.2252⟩
International audience; The Mars Organic Molecule Analyzer (MOMA) and Sample Analysis at Mars (SAM) instruments onboard the Exomars 2022 and Mars Science Laboratory rovers, respectively, are capable of organic matter detection and differentiating pot
Autor:
Christopher H. House, Gregory M. Wong, Christopher R. Webster, Gregory J. Flesch, Heather B. Franz, Jennifer C. Stern, Alex Pavlov, Sushil K. Atreya, Jennifer L. Eigenbrode, Alexis Gilbert, Amy E. Hofmann, Maëva Millan, Andrew Steele, Daniel P. Glavin, Charles A. Malespin, Paul R. Mahaffy
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Significance Carbon isotopic analysis is among the most pervasive geochemical approaches because the fractionation of carbon isotopes produces a natural tracer of biological and chemical processes. Rover-based carbon isotopic analyses of sedimentary
Autor:
James B. Garvin, Stephanie A. Getty, Giada N. Arney, Natasha M. Johnson, Erika Kohler, Kenneth O. Schwer, Michael Sekerak, Arlin Bartels, Richard S. Saylor, Vincent E. Elliott, Colby S. Goodloe, Matthew B. Garrison, Valeria Cottini, Noam Izenberg, Ralph Lorenz, Charles A. Malespin, Michael Ravine, Christopher R. Webster, David H. Atkinson, Shahid Aslam, Sushil Atreya, Brent J. Bos, William B. Brinckerhoff, Bruce Campbell, David Crisp, Justin R. Filiberto, Francois Forget, Martha Gilmore, Nicolas Gorius, David Grinspoon, Amy E. Hofmann, Stephen R. Kane, Walter Kiefer, Sebastien Lebonnois, Paul R. Mahaffy, Alexander Pavlov, Melissa Trainer, Kevin J. Zahnle, Mikhail Zolotov
The Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging (DAVINCI) mission described herein has been selected for flight to Venus as part of the NASA Discovery Program. DAVINCI will be the first mission to Venus to incorporate s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54ddedd2d96ccb81cbec07cb296364af
Autor:
Z. E. Gallegos, Rachel Mackelprang, Diana E. Northup, David Beaty, M. A. Nellessen, Vlada Stamenkovic, Paul R. Mahaffy, M. Hoffman, Nina Lanza, Shiladitya DasSarma, J. G. Blank, Patrick J. Gasda, Jie Xu, M. A. Meyer, B. R. W. O'Connor, Brian D. Wade, H. H. Bolivar Torres, C. J. Walker, Priya DasSarma, Aaron E. Engelhart, D. Viola, Zachary Garvin, Corien Bakermans, Larry Matthies, M. S. Bell, J. A. Torres Celis, Carol R. Stoker, Scott Perl, Kennda Lynch, Mark A. Schneegurt, Richard C. Quinn, Boris Sauterey, Laura Rowe, H. D. Smith, A. H. D. Koeppel, Amy J. Williams, Kevin D. Webster, J. L. Eigenbrode, L. A. Scuderi, Luoth Chou, Roger C. Wiens, P. Boston, Petra Schwendner, B. C. Clark, J. M. Williams, Dirk Schulze-Makuch, Rachel L. Harris, Thomas L. Kieft, J. H. Green, Andrew C. Schuerger, R. Bruner, P. A. Lee, J. D. Tarnas, Bonnie K. Baxter, Xiang Li, David J. Des Marais, Natalie Grefenstette, S. A. Benner, Horton E. Newsom, Michael N. Spilde
Publikováno v:
Astrobiology
On November 5–8, 2019, the “Mars Extant Life: What's Next?” conference was convened in Carlsbad, New Mexico. The conference gathered a community of actively publishing experts in disciplines related to habitability and astrobiology. Primary con
Autor:
Yuni Lee, Bruce M. Jakosky, Mehdi Benna, Paul R. Mahaffy, K. Roeten, S. W. Bougher, Erdal Yiğit
Publikováno v:
Science. 366:1363-1366
Mapping winds in Mars' upper atmosphere The atmospheric loss processes that stripped Mars of most of its ancient atmosphere are poorly understood. Benna et al. analyzed atmospheric measurements collected by the Mars Atmosphere and Volatile Evolution