2 papers
astro-ph.HE2025
Covariance spectrum of MAXI J1820+070: On the nature of the Comptonizing flow
Shuai-Kang Yang, Bei You, Niek Bollemeijer +8
We present an analysis of the covariance spectrum of the black hole X-ray binary MAXI J1820+070 during its hard state. For the first time, we extend coherence and covariance studie…
astro-ph.HE2025
The strong Fe K line and spin of the black-hole X-ray binary MAXI J1631-479
Andrzej A. Zdziarski, Swadesh Chand, Gulab Dewangan +5
We study the transient black hole binary MAXI J1631--479 in its soft spectral state observed simultaneously by the NICER and NuSTAR instruments. Its puzzling feature is the presenc…