Submillimeter-wave C I spectral lines from the NGC 1333 region

Tomoharu Oka; Mitsuhiro Iwata; Hiroyuki Maezawa; Masafumi Ikeda; Tetsuya Ito; Kazuhisa Kamegai; Takeshi Sakai; Satoshi Yamamoto

doi:10.1086/381082

Submillimeter-wave C I spectral lines from the NGC 1333 region

Tomoharu Oka, Mitsuhiro Iwata, Hiroyuki Maezawa, Masafumi Ikeda, Tetsuya Ito, Kazuhisa Kamegai, Takeshi Sakai, Satoshi Yamamoto

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

9 Citations (Scopus)

Abstract

We present large (30′ × 40′) maps in the C⁰ ³P₀-³P₀ ([C I]; 492 GHz) and CO J = 3-2 (346 GHz) spectral lines of the NGC 1333 star-forming complex. We also report detections of the C⁰ ³P₂- ³P₁ (809 GHz) spectral line from 3 × 3 positions centered on HH 12. The overall extents of [C I] and CO J = 3-2 emission are similar to those of ¹³CO and C¹⁸O J = 1-0 emission. The CO J = 3-2 intensity peak is adjacent to the illuminating star SVS 3, while the [C I] intensity peaks at 5′ southwest of the reflection nebula, filling a hollow surrounded by a C-shaped dense molecular shell. We suggest that the observed [C I] distributions might be the result of nonequilibrium chemistry on the basis of the time-dependent chemical simulation. A huge expanding H I shell associated with the NGC 1333 cloud lends further support to this notion.

Original language	English
Pages (from-to)	803-815
Number of pages	13
Journal	Astrophysical Journal
Volume	602
Issue number	2 I
DOIs	https://doi.org/10.1086/381082
Publication status	Published - 2004 Feb 20
Externally published	Yes

Keywords

Astrochemistry
ISM: atoms
ISM: individual (NGC 1333)
ISM: molecules
Reflection nebulae

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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title = "Submillimeter-wave C I spectral lines from the NGC 1333 region",

abstract = "We present large (30′ × 40′) maps in the C0 3P0-3P0 ([C I]; 492 GHz) and CO J = 3-2 (346 GHz) spectral lines of the NGC 1333 star-forming complex. We also report detections of the C0 3P2- 3P1 (809 GHz) spectral line from 3 × 3 positions centered on HH 12. The overall extents of [C I] and CO J = 3-2 emission are similar to those of 13CO and C18O J = 1-0 emission. The CO J = 3-2 intensity peak is adjacent to the illuminating star SVS 3, while the [C I] intensity peaks at 5′ southwest of the reflection nebula, filling a hollow surrounded by a C-shaped dense molecular shell. We suggest that the observed [C I] distributions might be the result of nonequilibrium chemistry on the basis of the time-dependent chemical simulation. A huge expanding H I shell associated with the NGC 1333 cloud lends further support to this notion.",

keywords = "Astrochemistry, ISM: atoms, ISM: individual (NGC 1333), ISM: molecules, Reflection nebulae",

author = "Tomoharu Oka and Mitsuhiro Iwata and Hiroyuki Maezawa and Masafumi Ikeda and Tetsuya Ito and Kazuhisa Kamegai and Takeshi Sakai and Satoshi Yamamoto",

year = "2004",

month = feb,

day = "20",

doi = "10.1086/381082",

language = "English",

volume = "602",

pages = "803--815",

journal = "Astrophysical Journal",

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TY - JOUR

T1 - Submillimeter-wave C I spectral lines from the NGC 1333 region

AU - Oka, Tomoharu

AU - Iwata, Mitsuhiro

AU - Maezawa, Hiroyuki

AU - Ikeda, Masafumi

AU - Ito, Tetsuya

AU - Kamegai, Kazuhisa

AU - Sakai, Takeshi

AU - Yamamoto, Satoshi

PY - 2004/2/20

Y1 - 2004/2/20

N2 - We present large (30′ × 40′) maps in the C0 3P0-3P0 ([C I]; 492 GHz) and CO J = 3-2 (346 GHz) spectral lines of the NGC 1333 star-forming complex. We also report detections of the C0 3P2- 3P1 (809 GHz) spectral line from 3 × 3 positions centered on HH 12. The overall extents of [C I] and CO J = 3-2 emission are similar to those of 13CO and C18O J = 1-0 emission. The CO J = 3-2 intensity peak is adjacent to the illuminating star SVS 3, while the [C I] intensity peaks at 5′ southwest of the reflection nebula, filling a hollow surrounded by a C-shaped dense molecular shell. We suggest that the observed [C I] distributions might be the result of nonequilibrium chemistry on the basis of the time-dependent chemical simulation. A huge expanding H I shell associated with the NGC 1333 cloud lends further support to this notion.

AB - We present large (30′ × 40′) maps in the C0 3P0-3P0 ([C I]; 492 GHz) and CO J = 3-2 (346 GHz) spectral lines of the NGC 1333 star-forming complex. We also report detections of the C0 3P2- 3P1 (809 GHz) spectral line from 3 × 3 positions centered on HH 12. The overall extents of [C I] and CO J = 3-2 emission are similar to those of 13CO and C18O J = 1-0 emission. The CO J = 3-2 intensity peak is adjacent to the illuminating star SVS 3, while the [C I] intensity peaks at 5′ southwest of the reflection nebula, filling a hollow surrounded by a C-shaped dense molecular shell. We suggest that the observed [C I] distributions might be the result of nonequilibrium chemistry on the basis of the time-dependent chemical simulation. A huge expanding H I shell associated with the NGC 1333 cloud lends further support to this notion.

KW - Astrochemistry

KW - ISM: atoms

KW - ISM: individual (NGC 1333)

KW - ISM: molecules

KW - Reflection nebulae

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