5 papers
VLBI Astrometry of Magnetars
Takuya Akahori, Sujin Eie, Kei Amada +8
The origin of the strongest magnetic fields in the Universe, i.e., the origin of magnetars, is a longstanding question. An enhanced dynamo effect in an irregular supernova explosio…
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…
An Alternative Explanation for the Helium Star Pulsar Binary J19281815: The Most Heavyweight Black Widow System to Date
Hang Gong, Alexey Bobrick, Francisco Garzón +7
We present the results of deep near-infrared imaging of the recently discovered helium star pulsar binary J19281815 situated in the Galactic plane. Our observations did not achi…
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…
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.…