185 citations · 536 across the 27 of their papers we have counts for
8 papers · 1 filter
Probing the origin of the extended flaring branch of Z-type X-ray binaries GX 340+0 and GX 5-1 using AstroSat
Tanmoy Dutta, Mayukh Pahari, Anish Sarkar +2
`Z' type neutron star low-mass X-ray binaries typically show a `Z'-like three-branched track in their hardness intensity diagram. However, a few such `Z' sources show an additional…
X-ray and Radio Campaign of the Z-source GX 340+0 II: the X-ray polarization in the normal branch
Yash Bhargava, Thomas D. Russell, Mason Ng +11
We present the first X-ray polarization measurement of the neutron star low-mass X-ray binary and Z-source, GX 3400, in the normal branch (NB) using a 200 ks observation with th…
Long-term evolution of spin and other properties of neutron star low-mass X-ray binaries: implications for millisecond X-ray pulsars
Abhijnan Kar, Pulkit Ojha, Sudip Bhattacharyya
A neutron star (NS) accreting matter from a companion star in a low-mass X-ray binary (LMXB) system can spin up to become a millisecond pulsar (MSP). Properties of many such MSP sy…
XMM-Newton high-resolution spectroscopy of EXO 0748-676 after its re-emergence from a long quiescence
Sayantan Bhattacharya, Sudip Bhattacharyya, Gargi Shaw
EXO 0748-676 is a well-studied, high-inclination, dipping, and eclipsing neutron star low-mass X-ray binary that has recently emerged from 16 years of quiescence into a new outburs…
Probing outbursts of the transient neutron star low mass X-ray binary Aql X-1 with NICER: a study of spectral evolution
Karthik Gananath Putha, Yash Bhargava, Sudip Bhattacharyya
X-ray observations of neutron star (NS) low mass X-ray binaries (LMXBs) are useful to probe physical processes close to the NS and to constrain source parameters. Aql X-1 is a tran…
An IXPE-Led X-ray Spectro-Polarimetric Campaign on the Soft State of Cygnus X-1: X-ray Polarimetric Evidence for Strong Gravitational Lensing
James F. Steiner, Edward Nathan, Kun Hu +134
We present the first X-ray spectropolarimetric results for Cygnus X-1 in its soft state from a campaign of five IXPE observations conducted during 2023 May-June. Companion multiwav…