A 1.3 cm wavelength radio flare from a deeply embedded source in the Orion BN/KL region
- Author(s)
- J. Forbrich, K. M. Menten, M. J. Reid
- Abstract
Aims:Our aim was to measure and characterize the short-wavelength radio emission from young stellar objects (YSOs) in the Orion Nebula Cluster and the BN/KL star-forming region. Methods: We used the NRAO VeryLarge Array at a wavelength of λ=1.3 cm and we studied archival X-ray, infrared, and radio data. Results: During our observation,a strong outburst (flux increasing >10 fold) occurred in one of the16 sources detected at λ=1.3 cm, while the others remained(nearly) constant. This source does not have an infrared counterpart,but has subsequently been observed to flare in X-rays. Curiously, a very weak variable double radio source was found at other epochs near this position, one of whose components is coincident with it. A very high extinction derived from modeling the X-ray emission and the absence of an infrared counterpart both suggest that this source is very deeply embedded.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Max-Planck-Institut für Radioastronomie, Harvard-Smithsonian Center for Astrophysics
- Journal
- Astronomy & Astrophysics
- Volume
- 477
- Pages
- 267-272
- ISSN
- 0004-6361
- DOI
- https://doi.org/10.1051/0004-6361:20078070
- Publication date
- 01-2008
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103004 Astrophysics
- Keywords
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/6b01c871-9d08-4da3-8950-62f7ca7eaf4e