S. Majumder

activity

20102025

most citedWide-band view of High Frequency QPOs of GRS 1915+105 in 'softer' variability classes observed with AstroSat

34 citations · 60 across the 11 of their papers we have counts for

collaborators

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astro-ph.HE2024

Discovery of evolving low-frequency QPOs in hard X-rays ( $\sim 100$ keV) observed in black hole Swift J1727.8-1613 with $A s t r o S a t$

Anuj Nandi, Santabrata Das, Seshadri Majumder +3

We report the first detection of evolving Low-Frequency Quasi-periodic Oscillation (LFQPO) frequencies in hard X-rays upto $100$ keV with $A s t r o S a t / L A X P C$ during `unusual' outburst…

astro-ph.HE2024

First detection of X-ray polarization in Galactic ULX pulsar Swift J0243.6 $+$ 6124 with {\it IXPE}

Seshadri Majumder, Rwitika Chatterjee, Kiran M. Jayasury +2

We report the results of first ever spectro-polarimetric analyses of the Galactic ultra-luminous X-ray pulsar Swift J0243.6 $+ 6124$ during the 2023 outburst using quasi-simultaneous…

Discovery of evolving low-frequency QPOs in hard X-rays (∼100 keV) observed in black hole Swift J1727.8-1613 with AstroSat

First detection of X-ray polarization in Galactic ULX pulsar Swift J0243.6+6124 with {\it IXPE}

Discovery of evolving low-frequency QPOs in hard X-rays ( $\sim 100$ keV) observed in black hole Swift J1727.8-1613 with $A s t r o S a t$

First detection of X-ray polarization in Galactic ULX pulsar Swift J0243.6 $+$ 6124 with {\it IXPE}