Constant cyclotron line energy in hercules X–1 - joint insight-HXMT and NuSTAR observations

Xiao, G. C. and Ji, L. and Staubert, R. and Ge, M. Y. and Zhang, S. and Zhang, S. N. and Santangelo, A. and Ducci, L. and Liao, J. Y. and Guo, C. C. and (Insight-HXMT Collaboration), Insight-HXMT and Güngör, Can (2019) Constant cyclotron line energy in hercules X–1 - joint insight-HXMT and NuSTAR observations. Journal of High Energy Astrophysics, 23 . pp. 29-32. ISSN 2214-4048 (Print) 2214-4056 (Online)

[thumbnail of Open Access] PDF (Open Access)
1-s2.0-S2214404819300618-main.pdf

Download (469kB)

Abstract

The long-term evolution of the centroid energy of the CRSF in Her X-1 is still a mystery. We report a new measurement from a campaign between Insight-HXMT and NuSTAR performed in February 2018. Generally, the two satellites show well consistent results of timing and spectral properties. The joint spectral analysis confirms that the previously observed long decay phase has ended, and that the line energy instead keeps constant around 37.5 keV after flux correction.
Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Engineering and Natural Sciences > Basic Sciences > Physics
Faculty of Engineering and Natural Sciences
Depositing User: Can Güngör
Date Deposited: 01 Nov 2019 15:22
Last Modified: 26 Apr 2022 10:12
URI: https://research.sabanciuniv.edu/id/eprint/39364

Actions (login required)

View Item
View Item