Zobrazeno 1 - 10
of 80
pro vyhledávání: '"T. M. Donahue"'
Autor:
Tobias Owen, D. N. Harpold, Hasso B. Niemann, T. M. Donahue, J. Demick, Paul R. Mahaffy, S. K. Atreya, A. Alpert
Publikováno v:
Journal of Geophysical Research: Planets. 105:15061-15071
The Galileo Probe Mass Spectrometer provided the first data on the noble gas mixing and isotope ratios in the Jovian atmosphere. These measurements and the comparison with solar values constrain models of Jupiter's formation. Significant refinements
Autor:
Sushil K. Atreya, Hasso B. Niemann, T. M. Donahue, Paul R. Mahaffy, Tobias Owen, I. de Pater, A. Bar-Nun
Publikováno v:
Symposium - International Astronomical Union. 197:483-490
The discovery by theGalileoProbe Mass Spectrometer that argon is enriched to the same extent as carbon and sulfur on Jupiter requires a revision of models for the formation of this giant planet. Evidently the excess heavy elements were carried to Jup
Autor:
T. M. Donahue
Publikováno v:
Journal of Geophysical Research: Space Physics. 101:10555-10566
Herein are recounted one aeronomer's recollections of how some advances in our understanding of how the Earth's upper atmosphere works were made during the quarter century beginning in 1950. That period was selected because it spans about half of his
Publikováno v:
Journal of Geophysical Research: Planets. 101:4525-4538
A strong solar cycle variation in hydrogen and deuterium densities is observed in the nightside thermosphere of Venus when Pioneer Venus Orbiter (PVO) measurements made during the first three Venus years of the mission are compared with those made du
Autor:
Bruce P. Block, D. Gautier, G. R. Carignan, Tobias Owen, G. Israel, Hasso B. Niemann, Donald M. Hunten, D. N. Harpold, K. Biemann, Siegfried Bauer, Jonathan I. Lunine, R. L. Frost, J. A. Haberman, François Raulin, S. Way, J. E. Richards, Sushil K. Atreya, Konrad Mauersberger, T. M. Donahue
Publikováno v:
The Cassini-Huygens Mission ISBN: 9789048162086
The Gas Chromatograph Mass Spectrometer (GCMS) on the Huygens Probe will meas- ure the chemical composition of Titan's atmosphere from 170 km altitude (∼ 1h Pa) to the surface (∼1500 hPa) and determine the isotope ratios of the major gaseous cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9687ea5262159f3c291eae22301625d3
https://doi.org/10.1007/978-94-017-3251-2_14
https://doi.org/10.1007/978-94-017-3251-2_14
Autor:
G. R. Carignan, T. C. Owen, Wayne Kasprzak, Donald M. Hunten, Richard E. Hartle, J. A. Haberman, Paul R. Mahaffy, D. N. Harpold, S. H. Way, Sushil K. Atreya, T. M. Donahue, H. B. Niemann
Publikováno v:
Journal of geophysical research. 103(E10)
The Galileo probe mass spectrometer determined the composition of the Jovian atmosphere for species with masses between 2 and 150 amu from 0.5 to 21.1 bars. This paper presents the results of analysis of some of the constituents detected: H2, He, Ne,
Autor:
Paul R. Mahaffy, T. M. Donahue, Donald M. Hunten, Tobias Owen, Wayne Kasprzak, Hasso B. Niemann, D. N. Harpold, N. W. Spencer, J. A. Haberman, Richard E. Hartle, Sushil K. Atreya, G. R. Carignan
Publikováno v:
Advances in space research : the official journal of the Committee on Space Research (COSPAR). 21(11)
The Galileo Probe entered the atmosphere of Jupiter on December 7, 1995. Measurements of the chemical and isotopic composition of the Jovian atmosphere were obtained by the mass spectrometer during the descent over the 0.5 to 21 bar pressure region o