A "starless'' core that isn't:: Detection of a source in the L1014 dense core with the Spitzer Space Telescope

被引：151

作者：

Young, CH

Jorgensen, JK

Shirley, YL

Kauffmann, J

Huard, T

Lai, SP

Lee, CW

Crapsi, A

Bourke, TL

Dullemond, CP

Brooke, TY

Porras, A

Spiesman, W

Allen, LE

Blake, GA

Evans, NJ

Harvey, PM

Koerner, DW

Mundy, LG

Myers, PC

Padgett, DL

Sargent, AI

Stapelfeldt, KR

van Dishoeck, EF

Bertoldi, F

Chapman, N

Cieza, L

DeVries, CH

Ridge, NA

Wahhaj, Z

机构：

[1] Univ Texas, Austin, TX 78712 USA

[2] Leiden Observ, NL-2300 RA Leiden, Netherlands

[3] Natl Radio Astron Observ, Socorro, NM 87801 USA

[4] Max Planck Inst Radioastron, D-5300 Bonn, Germany

[5] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[6] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[7] Korea Astron Observ, Taejon 305348, South Korea

[8] Harvard Smithsonian Ctr Astrophys, Submillimeter Array Project, Hilo, HI 96720 USA

[9] Max Planck Inst Astrophys, D-85741 Garching, Germany

[10] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA

[11] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA

[12] No Arizona Univ, Dept Phys & Astron, Flagstaff, AZ 86011 USA

[13] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA

[14] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2004年 / 154卷 / 01期

关键词：

infrared : stars; ISM : individual (L1014); stars : formation; stars; low-mass; brown dwarfs;

D O I：

10.1086/422818

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present observations of L1014, a dense core in the Cygnus region previously thought to be starless, but data from the Spitzer Space Telescope show the presence of an embedded source. We propose a model for this source that includes a cold core, heated by the interstellar radiation field, and a low-luminosity internal source. The low luminosity of the internal source suggests a substellar object. If L1014 is representative, other "starless'' cores may turn out to harbor central sources.

引用

页码：396 / 401

页数：6

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