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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
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:
It is part of: Astronomy and Astrophysics, 2013, vol. 556, num. A131, p. 1-8
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ISSN: 0004-6361
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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