Zobrazeno 1 - 10
of 11 771
pro vyhledávání: '"X-ray reflection"'
Autor:
Datta, Sudeb Ranjan, Dovčiak, Michal, Bursa, Michal, Zhang, Wenda, Horák, Jiří, Karas, Vladimír
Publikováno v:
A&A 691, A85 (2024)
The observed spectra from black hole (BH) X-ray binaries (XRBs) typically consist of two primary components: multitemperature blackbody (BB) originating from the accretion disk in soft X-ray, and a power-law like component in hard X-ray due to Compto
Externí odkaz:
http://arxiv.org/abs/2409.06621
Autor:
Nathan, Edward, Ingram, Adam, Steiner, James F., König, Ole, Dauser, Thomas, Lucchini, Matteo, Mastroserio, Guglielmo, van der Klis, Michiel, García, Javier A., Connors, Riley, Kara, Erin, Wang, Jingyi
The black hole X-ray binary H1743-322 lies in a region of the Galaxy with high extinction, and therefore it has not been possible to make a dynamical mass measurement. In this paper we make use of a recent model which uses the X-ray reflection spectr
Externí odkaz:
http://arxiv.org/abs/2408.05268
Autor:
Bhattacharya, Mahasweta, Mondal, Aditya S., Pahari, Mayukh, Raychaudhuri, Biplab, Ghosh, Rohit, Dewangan, Gulab C.
The accreting millisecond X-ray pulsar IGR J17498-2921 went into X-ray outburst on April 13-15, 2023, for the first time since its discovery on August 11, 2011. Here, we report on the first follow-up \nustar{} observation of the source, performed on
Externí odkaz:
http://arxiv.org/abs/2408.06193
Publikováno v:
Phys. Rev. D 110, 043021 (2024)
Within the disk-corona model, it is natural to expect that a fraction of reflection photons from the disk are Compton scattered by the hot corona (reflection Comptonization), even if this effect is usually ignored in X-ray reflection spectroscopy stu
Externí odkaz:
http://arxiv.org/abs/2404.06893
Autor:
Gediman, B., Miller, J. M., Zoghbi, A., Draghis, P., Arzoumanian, Z., Brandt, W. N ., Gendreau, K.
We report on a study of the narrow Fe K$\alpha$ line and reflection spectrum in the well-known Seyfert-2 AGN, NGC 4388. X-ray spectra summed from two extensive NICER monitoring campaigns, separated by years, show strong evidence of variation in the d
Externí odkaz:
http://arxiv.org/abs/2403.00926
Autor:
Dong, Jameson, Mastroserio, Guglielmo, Garcıa, Javier A., Ingram, Adam, Nathan, Edward, Connors, Riley
Accretion around black holes is very often characterized by distinctive X-ray reflection features (mostly, iron inner-shell transitions), which arise due to the primary radiation being reprocessed by a dense and relatively colder medium, such as an a
Externí odkaz:
http://arxiv.org/abs/2312.09210
Publikováno v:
Mon. Not. Roy. Astron. Soc. 527, 12053-12064 (2024)
The development of techniques to measure accurately black hole spins is crucial to study the physics and astrophysics of these objects. X-ray reflection spectroscopy is currently the most popular method to estimate the spins of accreting black holes;
Externí odkaz:
http://arxiv.org/abs/2309.05018
Autor:
Riaz, Shafqat1,2 (AUTHOR), Mirzaev, Temurbek1 (AUTHOR), Abdikamalov, Askar B.1,3,4 (AUTHOR), Bambi, Cosimo1 (AUTHOR) bambi@fudan.edu.cn
Publikováno v:
European Physical Journal C -- Particles & Fields. Sep2023, Vol. 83 Issue 9, p1-10. 10p.
We present the results from the spectral and timing analysis of the accreting neutron star 1A~1744-361 from the \nustar{} observation performed in its 2022 outbursts. The unabsorbed bolometric X-ray luminosity during this observation in the energy ba
Externí odkaz:
http://arxiv.org/abs/2309.12637
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