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Accepted version

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2013-08

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/48353

The star forming region Monoceros R2 as a gamma-ray source

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http://dx.doi.org/10.1051/0004-6361/201220791

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.

Subject

Estels, Formació d'estels, Astronomia de raigs gamma, Astronomia de raigs X, Radioastronomia

Subject (English)

Stars, Star formation, Gamma ray astronomy, X-ray astronomy, Radio astronomy

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

MARTÍ RIBAS, Josep, et al. The star forming region Monoceros R2 as a gamma-ray source. Astronomy and Astrophysics. 2013. Vol. 556, num. A131, pags. 1-8. ISSN 0004-6361. [consulted: 15 of August of 2026]. Available at: https://hdl.handle.net/2445/48353

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