activity
20202026
most citedA 350-MHz Green Bank Telescope Survey of Unassociated Fermi LAT Sources: Discovery and Timing of Ten Millisecond Pulsars

8 citations · 21 across the 13 of their papers we have counts for

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13 papers · 1 filter

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 J2101-4802

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.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.HE2025★ 1 cited

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★ 1 cited

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…

astro-ph.HE2024

Unveiling frequency-dependent eclipsing in spider millisecond pulsars using broadband polarization observations with the Parkes

Sangita Kumari, Bhaswati Bhattacharyya, Rahul Sharan +6

This study presents an orbital phase-dependent analysis of three black widow spider millisecond pulsars (BW MSPs), aiming to investigate the magnetic field within the eclipse envir…

astro-ph.HE2024★ 7 cited

Flux Density Stability and Temporal Changes in the Spectra of Millisecond Pulsars using the GMRT

Rahul Sharan, Bhaswati Bhattacharyya, Sangita Kumari +2

This paper presents an investigation of spectral properties of 10 millisecond pulsars (MSPs) discovered by the uGMRT, observed from 2017-2023 using band 3 (300-500 MHz) and 4 (550-…

astro-ph.HE2024

The GMRT High-Resolution Southern Sky Survey for pulsars and transients -- VII: Timing of Spider MSP J1242-4712, A Bridge Between Redback and Black Widow Pulsars

Ankita Ghosh, Bhaswati Bhattacharyya, Andrew Lyne +7

We present the timing solution for the 5.31-ms spider millisecond pulsar (MSP) J1242-4712, discovered with the GMRT. PSR J1242-4712 orbits a companion of minimum mass 0.08 M$_{\odo…

astro-ph.HE2024★ 8 cited

A 350-MHz Green Bank Telescope Survey of Unassociated Fermi LAT Sources: Discovery and Timing of Ten Millisecond Pulsars

P. Bangale, B. Bhattacharyya, F. Camilo +18

We have searched for radio pulsations towards 49 Fermi Large Area Telescope (LAT) 1FGL Catalog -ray sources using the Green Bank Telescope at 350 MHz. We detected 18 millisecond…

astro-ph.HE2023★ 1 cited

First systematic study reporting the changes in eclipse cut-off frequency for pulsar J1544+4937

Sangita Kumari, Bhaswati Bhattacharyya, Rahul Sharan +3

We present results from a long-term monitoring of frequency dependent eclipses of the radio emission from PSR J1544+4937 which is a ``black widow spider'' millisecond pulsar (MSP)…

astro-ph.HE2023

Decade-long timing of four GMRT discovered millisecond pulsars

Shyam S. Sharma, Jayanta Roy, Bhaswati Bhattacharyya +1

The discovery and timing follow-up of millisecond pulsars (MSPs) are necessary not just for their usefulness in Pulsar Timing Arrays (PTAs) but also for investigating their own int…

astro-ph.HE2020★ 3 cited

Evaluating Low-Frequency Pulsar Observations to Monitor Dispersion with the Giant Metrewave Radio Telescope

Megan L. Jones, Maura A. McLaughlin, Jayanta Roy +5

The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) project has the primary goal of detecting and characterizing low-frequency gravitational waves through h…