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.

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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://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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