3 papers
astro-ph.HE2025
Accretion Flow Properties of Swift J1727.8-1613 and Estimation of the BH Mass
Dipak Debnath, Hsiang-Kuang Chang, Sujoy Kumar Nath +1
The rising phase of the 2023-24 outburst of the recently discovered bright transient black hole candidate Swift J1727.8-1613 was monitored by {\it Insight}-HXMT. We study the evolu…
astro-ph.HE2025
Linear Polarization in a Black Hole, 4U~1957+115 and its X-ray Spectral Analysis
Lev Titarchuk, Elena Seifina, Paolo Soffiitta +1
We present a new spectro-polarimetric method for estimation of the inclination of X-ray binaries using the linear polarization (LP) value in black hole (BH) sources, based on the e…
astro-ph.HE2025
X-ray linear polarization prediction in Black-Hole binaries and Active Galactic Nuclei and its measurements by IXPE
Lev Titarchuk, Paolo Soffitta, Elena Seifina +3
We present a theoretical framework for the formation of X-ray linear polarization in black hole (BH) source. The X-ray linear polarization originates from up-scatterings of initial…