The Nature of the Dense Core Population in the Pipe Nebula: A Survey of NH3, CCS, and HC5N Molecular Line Emission
- Author(s)
- J. M. Rathborne, C. J. Lada, A. A. Muench, J. F. Alves, M. Lombardi
- 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
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- European Southern Observatory (Germany), Harvard-Smithsonian Center for Astrophysics, Centro Astronómico Hispano Alemán (CAHA)
- Journal
- The Astrophysical Journal Supplement Series
- Volume
- 174
- Pages
- 396-425
- ISSN
- 0067-0049
- DOI
- https://doi.org/10.1086/522889
- Publication date
- 02-2008
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103004 Astrophysics
- Keywords
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/the-nature-of-the-dense-core-population-in-the-pipe-nebula-a-survey-of-nh3-ccs-and-hc5n-molecular-line-emission(23e1f97d-f9c1-4377-b26b-d3f0f01caee5).html