185 citations · 536 across the 27 of their papers we have counts for
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Multiple mountains on a pulsar: implications for gravitational waves and the spin-down rate
Paritosh Verma, Sudip Bhattacharyya
A pulsar, i.e., a spinning neutron star, with a deformation could emit gravitational waves continuously. Such continuous waves, which have not been detected yet, will be very usefu…
Measuring accretion disc properties in the transitional millisecond pulsar PSR J1023+0038 using XMM-Newton, NuSTAR, NICER and Chandra
Vishal Jadoliya, Mayukh Pahari, Sudip Bhattacharyya +1
Whether the accretion disc in the X-ray high-mode of transitional millisecond pulsars (tMSP) reaches near the neutron star surface by penetrating the magnetosphere is a crucial que…
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…
The 2024 outburst of the neutron star LMXB EXO 0748-676: an investigation of bursts and eclipses with AstroSat
Aromal P, Unnati Kashyap, Manoneeta Chakraborty +3
We present a detailed analysis of the Type-I (thermonuclear) X-ray bursts and eclipses observed from the neutron star low-mass X-ray binary (LMXB) EXO 0748--676 with AstroSat durin…
Spin period evolution and X-ray spectral characteristics of the SMC pulsar SXP 46.6
Aman Kaushik, Sayantan Bhattacharya, Sudip Bhattacharyya
We characterize the Small Magellanic Cloud (SMC) pulsar SXP 46.6 using NuSTAR observations conducted in 2017. The spin period (P) of this neutron star decreased from its discovered…
Probing the accreting millisecond X-ray pulsar SAX J1808.4-3658 using the evolution of its spectral and aperiodic timing properties
Aman Kaushik, Yash Bhargava, Sudip Bhattacharyya +1
Understanding accretion components in neutron star (NS) low mass X-ray binary (LMXB) systems is important to probe fundamental aspects of accretion mechanism and evolution of the s…