X-ray emission in the direction of the SNR G318.2+0.1

Citation
F. Bocchino et al., X-ray emission in the direction of the SNR G318.2+0.1, ASTRON ASTR, 367(2), 2001, pp. 629-634
Citations number
28
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
00046361 → ACNP
Volume
367
Issue
2
Year of publication
2001
Pages
629 - 634
Database
ISI
SICI code
0004-6361(200102)367:2<629:XEITDO>2.0.ZU;2-A
Abstract
We report the discovery of three X-ray sources within the radio shell G318. 2+0.1, one of which may be extended. Two of the sources were detected durin g the BeppoSAX Galactic Plane Survey and one was found in archival ROSAT da ta. The fainter BeppoSAX source is coincident with an ultra-compact galacti c H II region, and we discuss the possibility that it can he a flaring youn g stellar object, while the other BeppoSAX source has no obvious counterpar t. The PSPC source is consistent with emission from a foreground star. The hard spectrum of the brighter BeppoSAX source is consistent with a non-ther mal origin, although a thermal nature cannot be formally excluded. If this source is associated with G318.2+0.1, then its hard spectrum suggests that it may be site of noil-thermal electron acceleration.