activity
20242026
collaborators

6 papers

astro-ph.HE2026

Detection of giant pulses from the transitional millisecond pulsar J12274853

Saptarshi Sarkar, Jayanta Roy, Bhaswati Bhattacharyya +5

We report the discovery of giant pulse (GP) emission from the transitional millisecond pulsar (tMSP) PSR J12274853, using 174 hours of single-pulse data from the upgraded Giant…

astro-ph.HE2026

The GMRT High-Resolution Southern Sky Survey for pulsars and transients -- VIII: Orbital Variability and the Evolution of a 1-Day He-WD Millisecond Pulsar J2101-4208

Ankita Ghosh, Bhaswati Bhattacharyya, David L. Kaplan +8

We present timing and orbital phase-resolved polarimetry of the millisecond pulsar (MSP) J21014802, having a spin period of 9.48~ms and dispersion measure (DM) $25.05\ \mathrm{p…

astro-ph.HE2026

Temporal Variations in Pulsar Spectro-Polarimetry: Findings from millisecond pulsar J2144-5237 using Parkes UWL receiver

Rahul Sharan, Bhaswati Bhattacharyya, Simon Johnston +2

While the temporal variations of the spectro-polarimetric nature of pulsars remains unexplored, this investigation offers significant potential for uncovering key insights into pul…

astro-ph.HE2025

Deciphering Profile Stability in Millisecond Pulsars: Timescales, Frequency Evolution, and Implications on Emission Mechanisms

Ankita Ghosh, Bhaswati Bhattacharyya, Rahul Sharan +3

Pulse profile stability in millisecond pulsars (MSPs) is a key factor in achieving high-precision timing essential for detecting nanohertz gravitational waves with Pulsar Timing Ar…

astro-ph.HE2025

Exploring Unusual High-frequency Eclipses in MSP J1908+2105

Ankita Ghosh, Bhaswati Bhattacharyya, Sangita Kumari +3

This paper presents a comprehensive study of the eclipse properties of the spider millisecond pulsar (MSP) J19082105, using wide-band observations from the uGMRT and Parkes UWL.…

astro-ph.HE2024

Unveiling Low-Frequency Eclipses in Spider MSPs using wideband GMRT Observations

Sangita Kumari, Bhaswati Bhattacharyya, Devojyoti Kansabanik +3

Eclipses of radio emission have been reported for ~ 58 spider millisecond pulsars (MSP), of which only around 19% have been extensively studied. Such studies at low frequencies are…