The 10 micron spectra of comet C/2002 V1 (NEAT) and C/2001 RX14 (LINEAR)

Mitsuhiko Honda; Jun Ichi Watanabe; Takuya Yamashita; Hirokazu Kataza; Yoshiko K. Okamoto; Takashi Miyata; Shigeyuki Sako; Takuya Fujiyoshi; Hideyo Kawakita; Reiko Furusho; Daisuke Kinoshita; Tomohiko Sekiguchi; Takafumi Ootsubo; Takashi Onaka

doi:10.1086/380478

The 10 micron spectra of comet C/2002 V1 (NEAT) and C/2001 RX14 (LINEAR)

Mitsuhiko Honda, Jun Ichi Watanabe, Takuya Yamashita, Hirokazu Kataza, Yoshiko K. Okamoto, Takashi Miyata, Shigeyuki Sako, Takuya Fujiyoshi, Hideyo Kawakita, Reiko Furusho, Daisuke Kinoshita, Tomohiko Sekiguchi, Takafumi Ootsubo, Takashi Onaka

Graduate Institute of Astronomy

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

27 Scopus citations

Abstract

We have carried out mid-infrared 8-13 μm spectroscopic observations of C/2002 V1 (NEAT) and C/2001 RX14 (LINEAR) on 2003 January 10-11 UT using the Cooled Mid-Infrared Camera and Spectrometer (COMICS) on the 8.2 m Subaru Telescope. The spectra of C/2002 V1 showed the broad silicate feature with the 11.2 μm peak, indicating the presence of crystalline olivine grains. The spectra of C/2001 RX14 also showed the broad trapezoidal silicate feature. The silicate feature profile of C/2002 V1 is explained by a combination of small (0.1 μm) amorphous olivine and pyroxene, large (2.0 μm) amorphous silicate, and small crystalline forsterite grains, while that of C/2001 RX14 is explained by small and large amorphous silicate grains without crystalline silicate grains. The ubiquity of large grains and crystalline silicate grains among these Oort Cloud comets indicates processing of the primordial interstellar matter in the early solar system and incorporation into the region where these cometary nuclei were formed.

Original language	English
Pages (from-to)	577-582
Number of pages	6
Journal	Astrophysical Journal
Volume	601
Issue number	1 I
DOIs	https://doi.org/10.1086/380478
State	Published - 20 Jan 2004

Keywords

Comets: individual (C/2002 V1, C/2001 RX14)
Infrared: solar system

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title = "The 10 micron spectra of comet C/2002 V1 (NEAT) and C/2001 RX14 (LINEAR)",

abstract = "We have carried out mid-infrared 8-13 μm spectroscopic observations of C/2002 V1 (NEAT) and C/2001 RX14 (LINEAR) on 2003 January 10-11 UT using the Cooled Mid-Infrared Camera and Spectrometer (COMICS) on the 8.2 m Subaru Telescope. The spectra of C/2002 V1 showed the broad silicate feature with the 11.2 μm peak, indicating the presence of crystalline olivine grains. The spectra of C/2001 RX14 also showed the broad trapezoidal silicate feature. The silicate feature profile of C/2002 V1 is explained by a combination of small (0.1 μm) amorphous olivine and pyroxene, large (2.0 μm) amorphous silicate, and small crystalline forsterite grains, while that of C/2001 RX14 is explained by small and large amorphous silicate grains without crystalline silicate grains. The ubiquity of large grains and crystalline silicate grains among these Oort Cloud comets indicates processing of the primordial interstellar matter in the early solar system and incorporation into the region where these cometary nuclei were formed.",

keywords = "Comets: individual (C/2002 V1, C/2001 RX14), Infrared: solar system",

author = "Mitsuhiko Honda and Watanabe, {Jun Ichi} and Takuya Yamashita and Hirokazu Kataza and Okamoto, {Yoshiko K.} and Takashi Miyata and Shigeyuki Sako and Takuya Fujiyoshi and Hideyo Kawakita and Reiko Furusho and Daisuke Kinoshita and Tomohiko Sekiguchi and Takafumi Ootsubo and Takashi Onaka",

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T1 - The 10 micron spectra of comet C/2002 V1 (NEAT) and C/2001 RX14 (LINEAR)

AU - Honda, Mitsuhiko

AU - Watanabe, Jun Ichi

AU - Yamashita, Takuya

AU - Kataza, Hirokazu

AU - Okamoto, Yoshiko K.

AU - Miyata, Takashi

AU - Sako, Shigeyuki

AU - Fujiyoshi, Takuya

AU - Kawakita, Hideyo

AU - Furusho, Reiko

AU - Kinoshita, Daisuke

AU - Sekiguchi, Tomohiko

AU - Ootsubo, Takafumi

AU - Onaka, Takashi

PY - 2004/1/20

Y1 - 2004/1/20

N2 - We have carried out mid-infrared 8-13 μm spectroscopic observations of C/2002 V1 (NEAT) and C/2001 RX14 (LINEAR) on 2003 January 10-11 UT using the Cooled Mid-Infrared Camera and Spectrometer (COMICS) on the 8.2 m Subaru Telescope. The spectra of C/2002 V1 showed the broad silicate feature with the 11.2 μm peak, indicating the presence of crystalline olivine grains. The spectra of C/2001 RX14 also showed the broad trapezoidal silicate feature. The silicate feature profile of C/2002 V1 is explained by a combination of small (0.1 μm) amorphous olivine and pyroxene, large (2.0 μm) amorphous silicate, and small crystalline forsterite grains, while that of C/2001 RX14 is explained by small and large amorphous silicate grains without crystalline silicate grains. The ubiquity of large grains and crystalline silicate grains among these Oort Cloud comets indicates processing of the primordial interstellar matter in the early solar system and incorporation into the region where these cometary nuclei were formed.

AB - We have carried out mid-infrared 8-13 μm spectroscopic observations of C/2002 V1 (NEAT) and C/2001 RX14 (LINEAR) on 2003 January 10-11 UT using the Cooled Mid-Infrared Camera and Spectrometer (COMICS) on the 8.2 m Subaru Telescope. The spectra of C/2002 V1 showed the broad silicate feature with the 11.2 μm peak, indicating the presence of crystalline olivine grains. The spectra of C/2001 RX14 also showed the broad trapezoidal silicate feature. The silicate feature profile of C/2002 V1 is explained by a combination of small (0.1 μm) amorphous olivine and pyroxene, large (2.0 μm) amorphous silicate, and small crystalline forsterite grains, while that of C/2001 RX14 is explained by small and large amorphous silicate grains without crystalline silicate grains. The ubiquity of large grains and crystalline silicate grains among these Oort Cloud comets indicates processing of the primordial interstellar matter in the early solar system and incorporation into the region where these cometary nuclei were formed.

KW - Comets: individual (C/2002 V1, C/2001 RX14)

KW - Infrared: solar system

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DO - 10.1086/380478

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JO - Astrophysical Journal

JF - Astrophysical Journal

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ER -

The 10 micron spectra of comet C/2002 V1 (NEAT) and C/2001 RX14 (LINEAR)

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