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Title:
X-ray emission in the direction of the SNR G318.2+0.1
Authors:
Bocchino, F.; Parmar, A. N.; Mereghetti, S.; Orlandini, M.; Santangelo, A.; Angelini, L.
Affiliation:
AA(Astrophysics Division, Space Science Dept. of ESA, ESTEC, Postbus 299, 2200 AG Noordwijk, The Netherlands; Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy), AB(Astrophysics Division, Space Science Dept. of ESA, ESTEC, Postbus 299, 2200 AG Noordwijk, The Netherlands), AC(Istituto di Fisica Cosmica e Tecnologie Relative, CNR, Via Bassini 15, 20133 Milano, Italy), AD(Istituto Tecnologie e Studio Radiazioni Extraterrestri, CNR, Via Gobetti 101, 40129 Bologna, Italy), AE(Istituto di Fisica Cosmica ed Applicazioni all'Informatica, CNR, Via U. La Malfa 153, 90146 Palermo, Italy), AF(Laboratory for High Energy Astrophysics, Code 660.2, NASA/Goddard Space Flight Center, MD 20771, USA)
Publication:
Astronomy and Astrophysics, v.367, p.629-634 (2001) (A&A Homepage)
Publication Date:
02/2001
Origin:
A&A
A&A Keywords:
SUPERNOVAE: GENERAL, ISM: INDIVIDUAL OBJECT: G318.2+0.1, ISM: SUPERNOVA REMNANTS, X-RAYS: ISM
DOI:
10.1051/0004-6361:20000430
Bibliographic Code:
2001A&A...367..629B

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 during the BeppoSAX Galactic Plane Survey and one was found in archival ROSAT data. The fainter BeppoSAX source is coincident with an ultra-compact galactic H ii region, and we discuss the possibility that it can be a flaring young stellar object, while the other BeppoSAX source has no obvious counterpart. The PSPC source is consistent with emission from a foreground star. The hard spectrum of the brighter BeppoSAX source is consistent with a non-thermal 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 non-thermal electron acceleration.
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