The Nature of the Dense Core Population in the Pipe Nebula: A Survey of NH3, CCS, and HC5N Molecular Line Emission

J. M. Rathborne; C. J. Lada; A. A. Muench; J. F. Alves; M. Lombardi

doi:10.1086/522889

The Nature of the Dense Core Population in the Pipe Nebula: A Survey of NH3, CCS, and HC5N Molecular Line Emission

J. M. Rathborne, C. J. Lada, A. A. Muench, J. F. Alves, M. Lombardi

Department of Astrophysics

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Abstract

Recent extinction studies of the Pipe Nebula (d=130 pc) reveal many cores spanning a range in mass from 0.2 to 20.4 Msolar. These dense cores were identified via their high extinction and comprise a starless population in a very early stage of development. Here we present a survey of NH3 (1,1), NH3 (2,2), CCS(21-10), and HC5N (9,8) emission toward46 of these cores. An atlas of the 2MASS extinction maps is also presented. In total, we detect 63% of the cores in NH3 (1,1),22% in NH 3 (2,2), 28% in CCS, and 9% in HC5Nemission. We find the cores are associated with dense gas(~104 cm-3) with 9.5 K

Original language	English
Pages (from-to)	396-425
Journal	The Astrophysical Journal Supplement Series
Volume	174
Issue number	2
DOIs	https://doi.org/10.1086/522889
Publication status	Published - 1 Feb 2008

Austrian Fields of Science 2012

103004 Astrophysics

Keywords

ISM: Dust
Extinction
ISM: Globules
ISM: Molecules
Stars: Formation

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10.1086/522889

http://adsabs.harvard.edu/abs/2008ApJS..174..396R

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title = "The Nature of the Dense Core Population in the Pipe Nebula: A Survey of NH3, CCS, and HC5N Molecular Line Emission",

abstract = "Recent extinction studies of the Pipe Nebula (d=130 pc) reveal many cores spanning a range in mass from 0.2 to 20.4 Msolar. These dense cores were identified via their high extinction and comprise a starless population in a very early stage of development. Here we present a survey of NH3 (1,1), NH3 (2,2), CCS(21-10), and HC5N (9,8) emission toward46 of these cores. An atlas of the 2MASS extinction maps is also presented. In total, we detect 63% of the cores in NH3 (1,1),22% in NH 3 (2,2), 28% in CCS, and 9% in HC5Nemission. We find the cores are associated with dense gas(~104 cm-3) with 9.5 K",

keywords = "ISM: Dust, Extinction, ISM: Globules, ISM: Molecules, Stars: Formation",

author = "Rathborne, {J. M.} and Lada, {C. J.} and Muench, {A. A.} and Alves, {J. F.} and M. Lombardi",

year = "2008",

month = feb,

day = "1",

doi = "10.1086/522889",

language = "English",

volume = "174",

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journal = "The Astrophysical Journal Supplement Series",

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TY - JOUR

T1 - The Nature of the Dense Core Population in the Pipe Nebula: A Survey of NH3, CCS, and HC5N Molecular Line Emission

AU - Rathborne, J. M.

AU - Lada, C. J.

AU - Muench, A. A.

AU - Alves, J. F.

AU - Lombardi, M.

PY - 2008/2/1

Y1 - 2008/2/1

N2 - Recent extinction studies of the Pipe Nebula (d=130 pc) reveal many cores spanning a range in mass from 0.2 to 20.4 Msolar. These dense cores were identified via their high extinction and comprise a starless population in a very early stage of development. Here we present a survey of NH3 (1,1), NH3 (2,2), CCS(21-10), and HC5N (9,8) emission toward46 of these cores. An atlas of the 2MASS extinction maps is also presented. In total, we detect 63% of the cores in NH3 (1,1),22% in NH 3 (2,2), 28% in CCS, and 9% in HC5Nemission. We find the cores are associated with dense gas(~104 cm-3) with 9.5 K

AB - Recent extinction studies of the Pipe Nebula (d=130 pc) reveal many cores spanning a range in mass from 0.2 to 20.4 Msolar. These dense cores were identified via their high extinction and comprise a starless population in a very early stage of development. Here we present a survey of NH3 (1,1), NH3 (2,2), CCS(21-10), and HC5N (9,8) emission toward46 of these cores. An atlas of the 2MASS extinction maps is also presented. In total, we detect 63% of the cores in NH3 (1,1),22% in NH 3 (2,2), 28% in CCS, and 9% in HC5Nemission. We find the cores are associated with dense gas(~104 cm-3) with 9.5 K

KW - ISM: Dust

KW - Extinction

KW - ISM: Globules

KW - ISM: Molecules

KW - Stars: Formation

U2 - 10.1086/522889

DO - 10.1086/522889

M3 - Article

SN - 0067-0049

VL - 174

SP - 396

EP - 425

JO - The Astrophysical Journal Supplement Series

JF - The Astrophysical Journal Supplement Series

IS - 2

ER -

The Nature of the Dense Core Population in the Pipe Nebula: A Survey of NH3, CCS, and HC5N Molecular Line Emission

Abstract

Austrian Fields of Science 2012

Keywords

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