2013A&A...559A..13M


Query : 2013A&A...559A..13M

2013A&A...559A..13M - Astronomy and Astrophysics, volume 559A, 13-13 (2013/11-1)

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

MUNAR-ADROVER P., BOSCH-RAMON V., PAREDES J.M. and IWASAWA K.

Abstract (from CDS):

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.

Abstract Copyright:

Journal keyword(s): stars: protostars - ISM: jets and outflows - gamma rays: stars - X-rays: stars - radiation mechanisms: non-thermal

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 997 2
2 M 1 SNR 05 34 32 +22 00.8           ~ 6002 1
3 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1109 1
4 IRAS 16547-4247 Y*O 16 58 17.21 -42 52 08.9           ~ 153 0
5 CD-42 11721 Be* 16 59 06.7629322176 -42 42 08.404228224 12.16 12.28 11.00     B0IVe 164 0
6 NAME HH 80-81 HH 18 19 06 -20 51.4           ~ 208 0
7 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1049 2

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2023.01.31-02:19:16

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