NGC 2264 IRS 1: The Central Engine and Its Cavity
Abstract
We present a high-resolution study of NGC 2264 IRS 1 in CS 2-->1 and in the 3 mm continuum using the IRAM Plateau de Bure interferometer. We complement these radio data with images taken at 2.2, 4.6, and 11.9 μm. The combined information allows a new interpretation of the closest environment of NGC 2264 IRS 1. No disk around the B-type star IRS 1 was found. IRS 1 and its low-mass companions are located in a low-density cavity that is surrounded by the remaining dense cloud core that has a clumpy, shell-like structure. Strong evidence for induced ongoing star formation was found in the surroundings of IRS 1. A deeply embedded very young stellar object 20" to the north of IRS 1 is powering a highly collimated bipolar outflow. Object 8 in the closer environment of IRS 1 is a binary surrounded by dusty circumbinary material and powering two bipolar outflows.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 2003
- DOI:
- 10.1086/379141
- arXiv:
- arXiv:astro-ph/0311156
- Bibcode:
- 2003ApJ...599..335S
- Keywords:
-
- ISM: Individual: NGC Number: NGC 2264 IRS 1;
- ISM: Jets and Outflows;
- Stars: Formation;
- Astrophysics
- E-Print:
- 17 pages, 6 figures, The paper is accepted and will appear in the Astrophysical Journal, Vol 599, No 1 (issue December 10). A high-resolution postscript version of this paper is available here ( http://www.astro.uni-jena.de/Users/martin/publi.html). Furthermore, you can find a high resolution PDF file here ( http://www.tls-tautenburg.de/research/tls-research/pub2003.html)
