XMM-Newton observation of the Galactic supernova remnant W51C (G49.1-0.1)
Sasaki M, Heinitz C, Gabriele W, Puehlhofer G (2014)
Publication Status: Published
Publication Type: Journal article
Publication year: 2014
Journal
Publisher: EDP SCIENCES S A
Book Volume: 563
DOI: 10.1051/0004-6361/201323145
Abstract
Context. The supernova remnant (SNR) W51C is a
Galactic object located in a strongly inhomogeneous interstellar medium
with signs of an interaction of the SNR blast wave with dense molecular
gas.
Aims: Diffuse X-ray emission from the interior of the SNR can
reveal element abundances in the different emission regions and shed
light on the type of supernova (SN) explosion and its progenitor. The
hard X-ray emission helps to identify possible candidates for a pulsar
formed in the SN explosion and for its pulsar wind nebula (PWN).
Methods: We have analysed X-ray data obtained with XMM-Newton. Spectral analyses in selected regions were performed.
Results: Ejecta emission in the bright western part of the SNR, located
next to a complex of dense molecular gas, was confirmed. The Ne and Mg
abundances suggest a massive progenitor with a mass of >20 M☉. Two extended regions emitting hard X-rays were identified (corresponding to the known sources [KLS2002] HX3 west and CXO J192318.5+140305
discovered with ASCA and Chandra, respectively), each of which has an
additional point source inside and shows a power-law spectrum with Γ ≈
1.8. Based on their X-ray emission, both sources can be classified as
PWN candidates.
Authors with CRIS profile
Involved external institutions
Germany (DE)How to cite
APA:
Sasaki, M., Heinitz, C., Gabriele, W., & Puehlhofer, G. (2014). XMM-Newton observation of the Galactic supernova remnant W51C (G49.1-0.1). Astronomy & Astrophysics, 563. https://doi.org/10.1051/0004-6361/201323145
MLA:
Sasaki, Manami, et al. "XMM-Newton observation of the Galactic supernova remnant W51C (G49.1-0.1)." Astronomy & Astrophysics 563 (2014).
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