Search Results - "Joswiak, D."

Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples by Nakamura, T, Matsumoto, M, Amano, K, Enokido, Y, Zolensky, M E, Mikouchi, T, Genda, H, Tanaka, S, Zolotov, M Y, Kurosawa, K, Wakita, S, Hyodo, R, Nagano, H, Nakashima, D, Takahashi, Y, Fujioka, Y, Kikuiri, M, Kagawa, E, Matsuoka, M, Brearley, A J, Tsuchiyama, A, Uesugi, M, Matsuno, J, Kimura, Y, Sato, M, Milliken, R E, Tatsumi, E, Sugita, S, Hiroi, T, Kitazato, K, Brownlee, D, Joswiak, D J, Takahashi, M, Ninomiya, K, Takahashi, T, Osawa, T, Terada, K, Brenker, F E, Tkalcec, B J, Vincze, L, Brunetto, R, Aléon-Toppani, A, Chan, Q H S, Roskosz, M, Viennet, J-C, Beck, P, Alp, E E, Michikami, T, Nagaashi, Y, Tsuji, T, Ino, Y, Martinez, J, Han, J, Dolocan, A, Bodnar, R J, Tanaka, M, Yoshida, H, Sugiyama, K, King, A J, Fukushi, K, Suga, H, Yamashita, S, Kawai, T, Inoue, K, Nakato, A, Noguchi, T, Vilas, F, Hendrix, A R, Jaramillo-Correa, C, Domingue, D L, Dominguez, G, Gainsforth, Z, Engrand, C, Duprat, J, Russell, S S, Bonato, E, Ma, C, Kawamoto, T, Wada, T, Watanabe, S, Endo, R, Enju, S, Riu, L, Rubino, S, Tack, P, Takeshita, S, Takeichi, Y, Takeuchi, A, Takigawa, A, Takir, D, Tanigaki, T, Taniguchi, A, Tsukamoto, K, Yagi, T, Yamada, S, Yamamoto, K, Yamashita, Y, Yasutake, M, Uesugi, K, Umegaki, I

“…Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon…”
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Carbonaceous aerosols recorded in a southeastern Tibetan glacier: analysis of temporal variations and model estimates of sources and radiative forcing by Wang, M, Xu, B, Cao, J, Tie, X, Wang, H, Zhang, R, Qian, Y, Rasch, P. J, Zhao, S, Wu, G, Zhao, H, Joswiak, D. R, Li, J, Xie, Y

“…High temporal resolution measurements of black carbon (BC) and organic carbon (OC) covering the time period of 1956–2006 in an ice core over the southeastern…”
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Refractory materials in comet samples by Joswiak, D. J., Brownlee, D. E., Nguyen, A. N., Messenger, S.

“…Transmission electron microscope examination of more than 250 fragments, >1 μm from comet Wild 2 and a giant cluster interplanetary dust particle (GCP) of…”
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Temperature lapse rate in complex mountain terrain on the southern slope of the central Himalayas by Kattel, D. B., Yao, T., Yang, K., Tian, L., Yang, G., Joswiak, D.

“…This study presents the first results of monthly, seasonal and annual characteristics of temperature lapse rate on the southern slope of the central Himalayas,…”
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Compositional evidence for chondrule origins of low‐Ca pyroxenes in comet Wild 2 and a giant cluster IDP by Joswiak, D. J., Brownlee, D. E., Westphal, A. J., Gainsforth, Z., Zhang, M., Kita, N. T.

“…A literature compilation of 1136 low‐Ca pyroxene compositions from chondrules from 12 primitive type 2–3 carbonaceous, ordinary and enstatite chondrite groups…”
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Fine‐grained material associated with a large sulfide returned from Comet 81P/Wild 2 by Gainsforth, Z., Westphal, A. J., Butterworth, A. L., Jilly‐Rehak, C. E., Brownlee, D. E., Joswiak, D. J., Ogliore, R. C., Zolensky, M. E., Bechtel, H. A., Ebel, D. S., Huss, G. R., Sandford, S. A., White, A. J.

“…In a consortium analysis of a large particle captured from the coma of comet 81P/Wild 2 by the Stardust spacecraft, we report the discovery of a field of…”
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Diversity of the initial rocky planetary building materials at the edge of the solar system by Brownlee, D. E., Joswiak, D. J.

“…Asteroids and comets are surviving members of the vast planetesimal population that was distributed across the early solar system. They appear to be a diverse…”
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A refractory inclusion returned by Stardust from comet 81P/Wild 2 by SIMON, S. B., JOSWIAK, D. J., ISHII, H. A., BRADLEY, J. P., CHI, M., GROSSMAN, L., ALÉON, J., BROWNLEE, D. E., FALLON, S., HUTCHEON, I. D., MATRAJT, G., McKEEGAN, K. D.

“…— Among the samples returned from comet 81P/Wild 2 by the Stardust spacecraft is a suite of particles from one impact track (Track 25) that are Ca‐, Al‐rich…”
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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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Constraints on the Formation Age of Cometary Material from the NASA Stardust Mission by Matzel, J.E.P, Ishii, H.A, Joswiak, D, Hutcheon, I.D, Bradley, J.P, Brownlee, D, Weber, P.K, Teslich, N, Matrajt, G, McKeegan, K.D, MacPherson, G.J

“…We measured the ²⁶Al-²⁶Mg isotope systematics of a approximately 5-micrometer refractory particle, Coki, returned from comet 81P/Wild 2 in order to relate the…”
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Possible in situ formation of meteoritic nanodiamonds in the early Solar System by Bradley, J. P, Dai, Z. R, Joswiak, D. J, Brownlee, D. E, Hill, H. G. M, Genge, M. J

“…Grains of dust that pre-date the Sun provide insights into their formation around other stars and into the early evolution of the Solar System. Nanodiamonds…”
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Terminal particle from Stardust track 130: Probable Al-rich chondrule fragment from comet Wild 2 by Joswiak, D.J., Nakashima, D., Brownlee, D.E., Matrajt, G., Ushikubo, T., Kita, N.T., Messenger, S., Ito, M.

“…A 4×6μm terminal particle from Stardust track 130, named Bidi, is composed of a refractory assemblage of Fo97 olivine, Al- and Ti-bearing clinopyroxene and…”
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Kosmochloric Ca-rich pyroxenes and FeO-rich olivines (Kool grains) and associated phases in Stardust tracks and chondritic porous interplanetary dust particles: Possible precursors to FeO-rich type II chondrules in ordinary chondrites by Joswiak, D. J., Brownlee, D. E., Matrajt, G., Westphal, A. J., Snead, C. J.

“…— Terminal particles and mineral fragments from comet 81P/Wild 2 were studied in 16 aerogel tracks by transmission and secondary electron microscopy. In eight…”
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Comparison of the composition of the Tempel 1 ejecta to the dust in Comet C/Hale–Bopp 1995 O1 and YSO HD 100546 by Lisse, C.M., Kraemer, K.E., Nuth, J.A., Li, A., Joswiak, D.

“…Spitzer Infrared Spectrograph observations of the Deep Impact experiment in July 2005 have created a new paradigm for understanding the infrared spectroscopy…”
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Carbon investigation of two Stardust particles: A TEM, NanoSIMS, and XANES study by Matrajt, G., Ito, M., Wirick, S., Messenger, S., Brownlee, D. E., Joswiak, D., Flynn, G., Sandford, S., Snead, C., Westphal, A.

“…— In this work we present the results of a systematic search for cometary organics in 14 Stardust particles (particles from comet 81P/Wild 2, captured by…”
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Comparison of the composition of the Tempel 1 ejecta to the dust in Comet C/Hale–Bopp 1995 O1 and YSO HD 100546 by Lisse, C.M., Kraemer, K.E., Nuth, J.A., Li, A., Joswiak, D.

“…Spitzer Infrared Spectrograph observations of the Deep Impact experiment in July 2005 have created a new paradigm for understanding the infrared spectroscopy…”
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A 70-yr record of oxygen-18 variability in an ice core from the Tanggula Mountains, central Tibetan Plateau by Joswiak, D. R., Yao, T., Wu, G., Xu, B., Zheng, W.

“…A 33 m ice core was retrieved from the Tanggula Mts, central Tibetan Plateau at 5743 m a.s.l. in August 2005. Annual average δ18O values were determined for…”
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A nuclear microprobe study of the distribution and concentration of carbon and nitrogen in Murchison and Tagish Lake meteorites, Antarctic micrometeorites, and IDPs: Implications for astrobiology by Matrajt, G., Taylor, S., Flynn, G., Brownlee, D., Joswiak, D.

“…— Using a nuclear microprobe, we measured the carbon and nitrogen concentrations and distributions in several interplanetary dust particles (IDPs) and…”
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Oxygen isotope measurements of individual unmelted Antarctic micrometeorites by Matrajt, G., Guan, Y., Leshin, L., Taylor, S., Genge, M., Joswiak, D., Brownlee, D.

“…We present oxygen isotope measurements of 28 unmelted Antarctic micrometeorites measuring 150–250 μm (long axis) collected in the South Pole water well. The…”
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THE ORIGIN OF THE 3.4 μm FEATURE IN WILD 2 COMETARY PARTICLES AND IN ULTRACARBONACEOUS INTERPLANETARY DUST PARTICLES by Matrajt, G., Flynn, G., Brownlee, D., Joswiak, D., Bajt, S.

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