Chondrulelike objects in short-period comet 81P/wild 2

Tomoki Nakamura; Takaaki Noguchi; Akira Tsuchiyama; Takayuki Ushikubo; Noriko T. Kita; John W. Valley; Michael E. Zolensky; Yuki Kakazu; Kanako Sakamoto; Etsuko Mashio; Kentaro Uesugi; Tsukasa Nakano

doi:10.1126/science.1160995

Chondrulelike objects in short-period comet 81P/wild 2

Tomoki Nakamura, Takaaki Noguchi, Akira Tsuchiyama, Takayuki Ushikubo, Noriko T. Kita, John W. Valley, Michael E. Zolensky, Yuki Kakazu, Kanako Sakamoto, Etsuko Mashio, Kentaro Uesugi, Tsukasa Nakano

Research output: Contribution to journal › Article › peer-review

202 Citations (Scopus)

Abstract

The Stardust spacecraft returned cometary samples that contain crystalline material, but the origin of the material is not yet well understood. We found four crystalline particles from comet 81P/Wild 2 that were apparently formed by flash-melting at a high temperature and are texturally, mineralogically, and compositionally similar to chondrules. Chondrules are submillimeter particles that dominate chondrites and are believed to have formed in the inner solar nebula. The comet particles show oxygen isotope compositions similar to chondrules in carbonaceous chondrites that compose the middle-to-outer asteroid belt. The presence of the chondrulelike objects in the comet suggests that chondrules have been transported out to the cold outer solar nebula and spread widely over the early solar system.

Original language	English
Pages (from-to)	1664-1667
Number of pages	4
Journal	Science
Volume	321
Issue number	5896
DOIs	https://doi.org/10.1126/science.1160995
Publication status	Published - Sept 19 2008
Externally published	Yes

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title = "Chondrulelike objects in short-period comet 81P/wild 2",

abstract = "The Stardust spacecraft returned cometary samples that contain crystalline material, but the origin of the material is not yet well understood. We found four crystalline particles from comet 81P/Wild 2 that were apparently formed by flash-melting at a high temperature and are texturally, mineralogically, and compositionally similar to chondrules. Chondrules are submillimeter particles that dominate chondrites and are believed to have formed in the inner solar nebula. The comet particles show oxygen isotope compositions similar to chondrules in carbonaceous chondrites that compose the middle-to-outer asteroid belt. The presence of the chondrulelike objects in the comet suggests that chondrules have been transported out to the cold outer solar nebula and spread widely over the early solar system.",

author = "Tomoki Nakamura and Takaaki Noguchi and Akira Tsuchiyama and Takayuki Ushikubo and Kita, {Noriko T.} and Valley, {John W.} and Zolensky, {Michael E.} and Yuki Kakazu and Kanako Sakamoto and Etsuko Mashio and Kentaro Uesugi and Tsukasa Nakano",

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T1 - Chondrulelike objects in short-period comet 81P/wild 2

AU - Nakamura, Tomoki

AU - Noguchi, Takaaki

AU - Tsuchiyama, Akira

AU - Ushikubo, Takayuki

AU - Kita, Noriko T.

AU - Valley, John W.

AU - Zolensky, Michael E.

AU - Kakazu, Yuki

AU - Sakamoto, Kanako

AU - Mashio, Etsuko

AU - Uesugi, Kentaro

AU - Nakano, Tsukasa

PY - 2008/9/19

Y1 - 2008/9/19

N2 - The Stardust spacecraft returned cometary samples that contain crystalline material, but the origin of the material is not yet well understood. We found four crystalline particles from comet 81P/Wild 2 that were apparently formed by flash-melting at a high temperature and are texturally, mineralogically, and compositionally similar to chondrules. Chondrules are submillimeter particles that dominate chondrites and are believed to have formed in the inner solar nebula. The comet particles show oxygen isotope compositions similar to chondrules in carbonaceous chondrites that compose the middle-to-outer asteroid belt. The presence of the chondrulelike objects in the comet suggests that chondrules have been transported out to the cold outer solar nebula and spread widely over the early solar system.

AB - The Stardust spacecraft returned cometary samples that contain crystalline material, but the origin of the material is not yet well understood. We found four crystalline particles from comet 81P/Wild 2 that were apparently formed by flash-melting at a high temperature and are texturally, mineralogically, and compositionally similar to chondrules. Chondrules are submillimeter particles that dominate chondrites and are believed to have formed in the inner solar nebula. The comet particles show oxygen isotope compositions similar to chondrules in carbonaceous chondrites that compose the middle-to-outer asteroid belt. The presence of the chondrulelike objects in the comet suggests that chondrules have been transported out to the cold outer solar nebula and spread widely over the early solar system.

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Chondrulelike objects in short-period comet 81P/wild 2

Abstract

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