Zobrazeno 1 - 10
of 28
pro vyhledávání: '"R. Richard Hodges"'
Autor:
Paul R. Mahaffy, Ferzan Jaeger, Charles Edmonson, Matthew Lefavor, R. Richard Hodges, Ryan M. Miller, D. N. Harpold, Mehdi Benna, B. D. Prats, T. Nolan, Patrick Kimvilakani, Felix Noreiga, E. Raaen, Steven Battel, John Maurer, Bruce P. Block, Todd King, Kiran Patel, Eric Lyness, Michael Barciniak, Vincent Holmes, Daniel Carigan, Robert Arvey, Florence Tan, Edwin Weidner, Therese Errigo, Christopher S. Johnson, Jerome Hengemihle, Cynthia Gundersen, Marvin Noriega, Mirl Bendt, Omar Quinones, Ken Arnett, Michael Woronowicz, James W. Kellogg, Curt Cooper, Daniel Nguyen
Publikováno v:
The Lunar Atmosphere and Dust Environment Explorer Mission (LADEE) ISBN: 9783319187167
The Neutral Mass Spectrometer (NMS) of the Lunar Atmosphere and Dust Environment Explorer (LADEE) Mission is designed to measure the composition and variability of the tenuous lunar atmosphere. The NMS complements two other instruments on the LADEE s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e19132a705fa09f442b3a0809eef019
https://doi.org/10.1007/978-3-319-18717-4_3
https://doi.org/10.1007/978-3-319-18717-4_3
Autor:
R. Richard Hodges
Publikováno v:
Journal of Geophysical Research: Planets. 105:6971-6981
Hot atomic oxygen velocity distributions and corresponding profiles of density and temperature have been calculated for the Venus and Mars exospheres by Monte Carlo simulation. The Venus results are realistically based on well-established models of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b50ec4f822ed081212db6979628782e
https://doi.org/10.1029/1999je001138
https://doi.org/10.1029/1999je001138
Autor:
R. Richard Hodges
Publikováno v:
Journal of Geophysical Research: Planets. 104:8463-8471
Data from Pioneer Venus provide a basis for estimating current escape rates of H and D from Venus, but there is no consensus in the existing estimates. In an attempt to clarify the effects of exospheric dynamics on escape, models of the distributions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4536b29d64ca672cb7a01607dc1acdfa
https://doi.org/10.1029/1999je900006
https://doi.org/10.1029/1999je900006
Publikováno v:
American Journal of Physics. 62:33-41
Many static configurations involving electrical currents and charges possess angular momentum in electromagnetic form; two examples are discussed here, an electric charge in the field of a magnetic dipole, and an electric charge in the vicinity of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57d7485d2761786a7d0e345b5d3f4454
https://doi.org/10.1119/1.17738
https://doi.org/10.1119/1.17738
Autor:
R. Richard Hodges, Thomas M. Donahue
Publikováno v:
Geophysical Research Letters. 20:591-594
The Pioneer Venus Large Probe Neutral Mass Spectrometer collected data that apparently, but almost surely misleadingly, indicate the presence of a large amount of methane (1000- 6000 ppm) in the atmosphere of Venus from 60 km to the surface. The meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69a2f9351f7f200eeb6bf153defa63cf
https://doi.org/10.1029/93gl00513
https://doi.org/10.1029/93gl00513
Autor:
R. Richard Hodges
Publikováno v:
Journal of Geophysical Research: Space Physics. 98:3799-3805
Modeling the behavior of H and D in planetary exospheres requires detailed knowledge of the differential scattering cross sections for all of the important neutral-neutral and ion-neutral collision processes affecting these species over their entire
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e09d7fa30844f7b3d688b3e167c3640
https://doi.org/10.1029/92ja02606
https://doi.org/10.1029/92ja02606
Autor:
R. Richard Hodges
Publikováno v:
Icarus. 83:410-433
Monte Carlo methods developed for the characterization of velocity-dependent collision processes and ballistic transports in planetary exospheres form the basis of the present computer simulation of icy comet atmospheres, which iteratively undertakes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c581f5c8c1e1dee01768061a3f422474
https://doi.org/10.1016/0019-1035(90)90076-l
https://doi.org/10.1016/0019-1035(90)90076-l
Autor:
R. Richard Hodges
Publikováno v:
Geophysical Research Letters. 29
[1] Photolysis of CO2 in the upper atmosphere of Mars results in escaping oxygen and residual CO. Proceeding at a rate of .5–3 × 1010 mole yr−1, this process could reduce all of the atmospheric CO2 to CO in 20–140 Myr. The persistence of CO2 i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78ff372e09200faf2953e2752b1b31c2
https://doi.org/10.1029/2001gl013853
https://doi.org/10.1029/2001gl013853
Autor:
R. Richard Hodges
Publikováno v:
Journal of Geophysical Research. 107
[1] The common wisdom that water ice may exist in lunar polar cold traps has become a significant factor in the selection of space research objectives. The purpose of this paper is to address two topics that are missing from the discourse on lunar wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19a5f759afe9cf4989b81fbc6936f6cd
https://doi.org/10.1029/2000je001491
https://doi.org/10.1029/2000je001491