Search Results - "Pepin, R. O"

Helium and neon in comet 81P/Wild 2 samples from the NASA Stardust mission by Palma, R. L., Pepin, R. O., Westphal, A. J., Füri, E., Schlutter, D. J., Gainsforth, Z. S., Frank, D. R.

“…Helium and neon distributions are reported for a variety of Stardust comet 81P/Wild 2 samples, including particle tracks and terminal particles, cell surface…”
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Elemental abundances of the bulk solar wind : Analyses from genesis and ACE by REISENFELD, D. B, BURNETT, D. S, SCHLUTTER, D. J, WIELER, R, WIENS, R. C, ZURBUCHEN, T. H, BECKER, R. H, GRIMBERG, A. G, HEBER, V. S, HOHENBERG, C. M, JUREWICZ, A. J. G, MESHIK, A, PEPIN, R. O, RAINES, J. M

“…Issue Title: The Composition of Matter Analysis of the Genesis samples is underway. Preliminary elemental abundances based on Genesis sample analyses are in…”
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Isotopic evidence for a solar argon component in the Earth's mantle by Pepin, R. O

“…Determining the presence of solar argon, krypton and xenon in the Earth's mantle is important for understanding the source, incorporation mechanism and…”
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On Noble Gas Processing in the Solar Accretion Disk by Pepin, RO

“…Two fractionation models are applied to the problem of generating the widely distributed "Q-component" noble gases in meteorites from the solar-like isotopic…”
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The future of Stardust science by Westphal, A. J., Bridges, J. C., Brownlee, D. E., Butterworth, A. L., De Gregorio, B. T., Dominguez, G., Flynn, G. J., Gainsforth, Z., Ishii, H. A., Joswiak, D., Nittler, L. R., Ogliore, R. C., Palma, R., Pepin, R. O., Stephan, T., Zolensky, M. E.

“…Recent observations indicate that >99% of the small bodies in the solar system reside in its outer reaches—in the Kuiper Belt and Oort Cloud. Kuiper Belt…”
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In situ measurement of atmospheric krypton and xenon on Mars with Mars Science Laboratory by Conrad, P.G., Malespin, C.A., Franz, H.B., Pepin, R.O., Trainer, M.G., Schwenzer, S.P., Atreya, S.K., Freissinet, C., Jones, J.H., Manning, H., Owen, T., Pavlov, A.A., Wiens, R.C., Wong, M.H., Mahaffy, P.R.

“…Mars Science Laboratory's Sample Analysis at Mars (SAM) investigation has measured all of the stable isotopes of the heavy noble gases krypton and xenon in the…”
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Irradiation records in regolith materials, II: Solar wind and solar energetic particle components in helium, neon, and argon extracted from single lunar mineral grains and from the Kapoeta howardite by stepwise pulse heating by Palma, R.L, Becker, R.H, Pepin, R.O, Schlutter, D.J

“…High-resolution stepped heating has been used to extract light noble gases implanted in a suite of 13 individual lunar ilmenite and iron grains and in the…”
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Xenon and krypton isotopes in extraterrestrial regolith soils and in the solar wind by Pepin, R.O., Becker, R.H., Rider, P.E.

“…Isotopic distributions of pure solar-wind xenon and krypton are derived from an extensive data base of xenon and krypton compositions evolved from lunar and…”
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Irradiation records in regolith materials. I: isotopic compositions of solar-wind neon and argon in single lunar mineral grains by Pepin, R.O, Becker, R.H, Schlutter, D.J

“…We have applied a stepwise pyrolytic extraction technique to eleven individual lunar regolith grains to investigate the compositions of light noble gases…”
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Meteorites: Evidence of Martian origins by Pepin, R. O

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Noble gases in interplanetary dust particles, I: The excess helium-3 problem and estimates of the relative fluxes of solar wind and solar energetic particles in interplanetary space by PEPIN, R. O., PALMA, R. L., SCHLUTTER, D. J.

“…— We report mass‐spectrometric measurements of light noble gases pyrolytically extracted from 28 interplanetary dust particles (IDPs) and discuss these new…”
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The Genesis Solar-Wind Collector Materials by Jurewicz, Ajg, Burnett, Ds, Wiens, Rc, Friedmann, Ta, Hays, Cc, Hohlfelder, Rj, Nishiizumi, K, Stone, Ja, Woolum, Ds, Becker, R, Butterworth, Al, Campbell, Aj, Ebihara, M, Franchi, Ia, Heber, V, Hohenberg, Cm, Humayun, M, Mckeegan, Kd, Mcnamara, K, Meshik, A, Pepin, Ro, Schlutter, D, Wieler, R

“…Genesis (NASA Discovery Mission #5) is a sample return mission. Collectors comprised of ultra-high purity materials will be exposed to the solar wind and then…”
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Noble gases in interplanetary dust particles, II: Excess helium-3 in cluster particles and modeling constraints on interplanetary dust particle exposures to cosmic-ray irradiation by Pepin, R. O., Palma, R. L., Schlutter, D. J.

“…— Measurements of He isotopes in cluster interplanetary dust particles (IDPs) from stratospheric dust collector L2009 reveal anomalous 3He/4He ratios…”
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Isotopic Signatures of Volatiles in Terrestrial Planets - Working Group Report by Becker, R H, Clayton, R N, Galimov, E M, Lammer, H, Marty, B, Pepin, RO, Wieler, R

“…Variations in the isotopic ratios of volatile elements in different reservoirs on the terrestrial planets carry information about processes that operated on…”
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Sun and Protosolar Nebula - Working Group Report by Kallenbach, R, Robert, F, Geiss, J, Herbst, E, Lammer, H, Marty, B, Millar, T J, Ott, U, Pepin, RO

“…Volatile isotope abundances are tracers for the evolutionary processes of the solar system. At the same time they carry information on the galactic…”
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The Future of Stardust Science by Westphal, A. J, Bridges, J. C, Brownlee, D. E, Butterworth, A. L, De Gregorio, B. T, Dominguez, G, Flynn, G. J, Gainsforth, Z, Ishii, H. A, Joswiak, D, Nittler, L. R, Ogliore, R. C, Palma, R, Pepin, R. O, Stephan, T, Zolensky, M. E

“…Recent observations indicate that >99% of the small bodies in the Solar System reside in its outer reaches --- in the Kuiper Belt and Oort Cloud. Kuiper Belt…”
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Origin of Noble Gases in the Terrestrial Planets by Pepin, R O

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An acid-etch study of the Kapoeta achondrite: Implications for the argon-36/argon-38 ratio in the solar wind by BECKER, R. H., SCHLUTTER, D. J., RIDER, P. E., PEPIN, R. O.

“…— Noble gases were measured in the Kapoeta achondrite by means of step‐wise closed‐system acid‐etching with H2SO3. Isotopic ratios indicate that He, Ne and Ar…”
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Isotopic Composition of Rare Gases in Lunar Samples by Pepin, R. O., Nyquist, L. E., Phinney, Douglas, Black, David C.

“…Data from total melt and step-by-step heating experiments on the Apollo 11 lunar samples suggest a close affinity between lunar and meteoritic rare gases…”
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Volatile, Isotope, and Organic Analysis of Martian Fines with the Mars Curiosity Rover by Leshin, L. A., Mahaffy, P. R., Webster, C. R., Cabane, M., Coll, P., Conrad, P. G., Archer, P. D., Atreya, S. K., Brunner, A. E., Buch, A., Eigenbrode, J. L., Flesch, G. J., Franz, H. B., Freissinet, C., Glavin, D. P., McAdam, A. C., Miller, K. E., Ming, D. W., Morris, R. V., Navarro-González, R., Niles, P. B., Owen, T., Pepin, R. O., Squyres, S., Steele, A., Stern, J. C., Summons, R. E., Sumner, D. Y., Sutter, B., Szopa, C., Teinturier, S., Trainer, M. G., Wray, J. J., Grotzinger, J. P.

“…Samples from the Rocknest aeolian deposit were heated to ~835°C under helium flow and evolved gases analyzed by Curiosity's Sample Analysis at Mars instrument…”
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