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The Puzzling Source at the Center of the SNR RCW 103

Published online by Cambridge University Press:  04 June 2018

A. Borghese ,
N. Rea ,
F. Coti Zelati  and
P. Esposito
A. Borghese
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, the Netherlands email: [email protected]
N. Rea
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, the Netherlands email: [email protected] Institute of Space Sciences (IEEC-CSIC), Campus UAB, Barcelona, Spain
F. Coti Zelati
Affiliation:
Institute of Space Sciences (IEEC-CSIC), Campus UAB, Barcelona, Spain
P. Esposito
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, the Netherlands email: [email protected]
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Abstract

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1E 161348-5055 (1E 1613), the source at the center of the supernova remnant RCW 103, has defied any easy classification since its discovery, owing to its long-term variability (a factor of ~ 100 in flux on time scales from months to years) and a periodicity of 6.67 hr with a variable light curve profile across different flux levels. On June 2016, 1E 1613 emitted a magnetar-like millisecond burst of hard X-rays accompanied with a factor ~ 100 brightening in the persistent soft X-ray emission. The duration and spectral decomposition of the burst, the discovery of a hard X-ray tail in the spectrum, and the long-term outburst history suggest that 1E 1613 is an isolated magnetar and the periodicity of 6.67 hr is the rotational spin period, making 1E 1613 the slowest neutron star ever detected.

Keywords

X-rays: starsstars: neutronstars: individual (1E 161348-5055)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S337: Pulsar Astrophysics the Next Fifty Years , September 2017 , pp. 104 - 107
Copyright
Copyright © International Astronomical Union 2018 

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