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

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.), theor...

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Bibliographic Details
Authors: 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.
Format: article
Status:Versión aceptada para publicación
Publication Date:2013
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/48353
Online Access:https://hdl.handle.net/2445/48353
Access Level:Open access
Keyword:Estels
Formació d'estels
Astronomia de raigs gamma
Astronomia de raigs X
Radioastronomia
Stars
Star formation
Gamma ray astronomy
X-ray astronomy
Radio astronomy
Description
Summary: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.

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