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http://hdl.handle.net/2445/48353
Title: | The star forming region Monoceros R2 as a gamma-ray source |
Author: | Martí Ribas, Josep Luque Escamilla, Pedro L. Muñoz-Arjonilla, A. J. Sánchez-Ayaso, Estrella Munar i Adrover, Pere Sánchez-Sutil, J. R. Romero, Gustavo E. Paredes i Poy, Josep Maria Combi, J. A. |
Keywords: | Estels Formació d'estels Astronomia de raigs gamma Astronomia de raigs X Radioastronomia Stars Star formation Gamma ray astronomy X-ray astronomy Radio astronomy |
Issue Date: | Aug-2013 |
Publisher: | Springer Verlag |
Abstract: | After the release of the gamma-ray source catalog produced by the Fermi satellite during its first two years of operation, a significant fraction of sources still remain unassociated at lower energies. In addition to well-known high-energy emitters (pulsars, blazars, supernova remnants, etc.), theoretical expectations predict new classes of gamma-ray sources. In particular, gamma-ray emission could be associated with some of the early phases of stellar evolution, but this interesting possibility is still poorly understood. Aims: The aim of this paper is to assess the possibility of the Fermi gamma-ray source 2FGL J0607.5-0618c being associated with the massive star forming region Monoceros R2. Methods: A multi-wavelength analysis of the Monoceros R2 region is carried out using archival data at radio, infrared, X-ray, and gamma-ray wavelengths. The resulting observational properties are used to estimate the physical parameters needed to test the different physical scenarios. Results: We confirm the 2FGL J0607.5-0618c detection with improved confidence over the Fermi two-year catalog. We find that a combined effect of the multiple young stellar objects in Monoceros R2 is a viable picture for the nature of the source. |
Note: | Versió postprint del document publicat a: http://dx.doi.org/10.1051/0004-6361/201220791 |
It is part of: | Astronomy and Astrophysics, 2013, vol. 556, num. A131, p. 1-8 |
URI: | http://hdl.handle.net/2445/48353 |
Related resource: | http://dx.doi.org/10.1051/0004-6361/201220791 |
ISSN: | 0004-6361 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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