1. XMM-Newton and Fermi/LAT view on the supernova remnant 3C434.1.
- Author
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Doroshenko, V., Malyshev, D., Pühlhofer, G., Dincel, B., Sasaki, M., and Santangelo, A.
- Subjects
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SUPERNOVA remnants , *GAMMA ray bursts , *X-rays , *GAMMA rays , *DATA analysis , *NEUTRON stars - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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