5 papers · 1 filter
On the assessment of the disk truncation and detection of type-II-like bursts from the accreting millisecond X-ray Pulsar IGR J17062-6143
Aditya Sow Mondal, Mahasweta Bhattacharya, Swarnendu Jana +2
We present a spectral analysis of the NuSTAR and NICER observations of the accreting millisecond X-ray pulsar IGR J17062-6143, performed in 2022. The source remained in the hard sp…
Probing the accretion geometry of the transient accreting millisecond pulsar SAX J1808.4-3658: transitions to the propeller regime
Mahasweta Bhattacharya, Aditya S. Mondal, Gulab C. Dewangan
We analyze three NuSTAR observations and two NICER observations of the transient accreting millisecond pulsar SAX J1808.4-3658 in the hard spectral state during its most recent out…
Exploring the spectral characteristics of the periodic burster 4U 1323-62: Type-I X-ray burst and persistent emission
Mahasweta Bhattacharya, Aditya S. Mondal, Biplab Raychaudhuri +1
We report on the results obtained by the analysis of persistent and type-I thermonuclear X-ray burst emission observed from the periodic burster 4U 1323-62. These analyses are base…
Relativistic X-ray reflection from the accreting millisecond X-ray pulsar IGR J17498-2921
Mahasweta Bhattacharya, Aditya S. Mondal, Mayukh Pahari +3
The accreting millisecond X-ray pulsar IGR J17498-2921 went into X-ray outburst on April 13-15, 2023, for the first time since its discovery on August 11, 2011. Here, we report on…
NuSTAR view of the X-ray transients Swift J174805.3-244637 and IGR J17511-3057
Aditya S. Mondal, Mahasweta Bhattacharya, Mayukh Pahari +3
We report on the NuSTAR observations of the neutron star low-mass X-ray binary Swift J174805.3-244637 (hereafter Swift~J17480) and the accreting millisecond X-ray pulsar IGR~J17511…