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2013-11

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/48355

Studying the non-thermal lobes of IRAS 16547-4247 through a multi-wavelength approach

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Recurs relacionat

http://dx.doi.org/10.1051/0004-6361/201321959

Resum

In recent years, massive protostars have turned out to be a possible population of high-energy emitters. Among the best candidates is IRAS 16547-4247, a protostar that presents a powerful outflow with clear signatures of interaction with its environment. This source has been revealed to be a potential high-energy source because it displays non-thermal radio emission of synchrotron origin, which is evidence of relativistic particles. To improve our understanding of IRAS 16547-4247 as a high-energy source, we analyzed XMM-Newton archival data and found that IRAS 16547-4247 is a hard X-ray source. We discuss these results in the context of a refined one-zone model and previous radio observations. From our study we find that it may be difficult to explain the X-ray emission as non-thermal radiation coming from the interaction region, but it might be produced by thermal Bremsstrahlung (plus photo-electric absorption) by a fast shock at the jet end. In the high-energy range, the source might be detectable by the present generation of Cherenkov telescopes, and may eventually be detected by Fermi in the GeV range.

Matèries

Estels, Astronomia de raigs gamma, Astronomia de raigs X, Jets (Astrofísica), Matèria interstel·lar

Matèries (anglès)

Stars, Gamma ray astronomy, X-ray astronomy, Astrophysical jets, Interstellar matter

Citació

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Articles publicats en revistes (Física Quàntica i Astrofísica)
Publicacions de projectes de recerca finançats per la UE

Citació

MUNAR I ADROVER, Pere, et al. Studying the non-thermal lobes of IRAS 16547-4247 through a multi-wavelength approach. Astronomy and Astrophysics. 2013. Vol. 559, num. A13, pags. 1-6. ISSN 0004-6361. [consulted: 8 of August of 2026]. Available at: https://hdl.handle.net/2445/48355

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