XMM-Newton and Fermi /LAT view on the supernova remnant 3C434.1
Doroshenko V, Malyshev D, Pühlhofer G, Dincel B, Sasaki M, Santangelo A (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 631
Article Number: A179
DOI: 10.1051/0004-6361/201935487
Abstract
We report on XMM-Newton observations of the supernova remnant (SNR) 3C434.1 (G94.0+1.0), the first in X-rays since the ROSAT era. Our analysis confirms the thermal origin of the observed extended X-ray emission, whose morphology appears more complex than previously reported. In particular, part of the shell shows a significantly harder spectrum which is consistent with a power law, and it is, therefore, likely of non-thermal origin. Motivated by these finding, we revisited the GeV observations of the field taken with the Fermi observatory. A significant excess associated with the remnant was detected, which is likely associated with non-thermal X-ray emission from part of the shell. The analysis of the Fermi data resulted in the serendipity discovery of GeV emission from the nearby SNR G093.7-00.2. Finally, we searched for a possible compact remnants within the shell, however, no obvious candidates could be identified due to the fairly large positional uncertainties.
Authors with CRIS profile
Dmitry Malyshev
Lehrstuhl für Physik
Baha Dincel
Professur für Multiwellenlängenastronomie
Manami Sasaki
Professur für Multiwellenlängenastronomie
Involved external institutions
Germany (DE)How to cite
APA:
Doroshenko, V., Malyshev, D., Pühlhofer, G., Dincel, B., Sasaki, M., & Santangelo, A. (2019). XMM-Newton and Fermi /LAT view on the supernova remnant 3C434.1. Astronomy & Astrophysics, 631. https://dx.doi.org/10.1051/0004-6361/201935487
MLA:
Doroshenko, Victor, et al. "XMM-Newton and Fermi /LAT view on the supernova remnant 3C434.1." Astronomy & Astrophysics 631 (2019).
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