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astro-ph.HE2026
Probing heartbeat oscillations from the black hole X-ray binary GRS 1915+105 using spectral-timing analysis
Karan Akbari, Chintan Patel, Sayantan Bhattacharya +2
GRS 1915+105 is a black hole X-ray binary whose -class ("heartbeat") oscillations (50--100 s) are attributed to radiation-pressure instabilities in the inner accretion dis…
astro-ph.HE2025★ 1 cited
A continuous transition from Type-C Quasi Periodic Oscillations to the Heartbeat state in the Black hole X-ray binary 4U 1630-47
Chintan Patel, Sayantan Bhattacharya, Karan Akbari +2
We present a timing analysis of the black hole X-ray binary (BHXRB) 4U 1630-47 using AstroSat observations from 10-19 March 2023, for the first time capturing a rare and rapid tran…