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 |
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Pages (from-to) | 396-425 |
Journal | The Astrophysical Journal Supplement Series |
Volume | 174 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Feb 2008 |
Austrian Fields of Science 2012
- 103004 Astrophysics
Keywords
- ISM: Dust
- Extinction
- ISM: Globules
- ISM: Molecules
- Stars: Formation