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Exploring the Effect of Periastron Advance in Small-Eccentricity Binary Pulsars
Abhimanyu Susobhanan, Achamveedu Gopakumar, Bhal Chandra Joshi +1
Short-orbital period small-eccentricity binary pulsars can, in principle, experience substantial advance of periastron. We explore the possibility of measuring this effect by imple…
Radio Pulsation Search and Imaging Study of SGR J1935+2154
Mayuresh Surnis, Bhal Chandra Joshi, Yogesh Maan +3
We present the results obtained from imaging observations, and search for radio pulsations towards the magnetar SGR J1935+2154 made using the Giant Metrewave Radio Telescope, and t…
Frequency independent quenching of pulsed emission
Vishal Gajjar, Bhal Chandra Joshi, Michael Kramer +2
Simultaneous observations at four different frequencies viz. 313, 607, 1380 and 4850 MHz, for three pulsars, PSRs B0031-07, B0809+74 and B2319+60, are reported in this paper. Ident…
On the long nulls of PSRs J1738-2330 and J1752+2359
Vishal Gajjar, Bhal Chandra Joshi, Geoffrey Wright
This paper compares and contrasts the emission of two high nulling fraction pulsars, PSRs J1738-2330 and J1752+2359. In both pulsars the emission bursts appear in a quasi-periodic…
Discovery of an Intermittent Pulsar: PSR J1839+15
M. P. Surnis, B. C. Joshi, M. A. McLaughlin +1
We report the discovery of a new pulsar PSR J1839+15, having a period of 549 ms and a DM of 68 pc-cm^-3. We also present its timing solution and report the intermittent behaviour o…
A survey of nulling pulsars using the Giant Meterwave Radio Telescope
Vishal Gajjar, B. C. Joshi, M. Kramer
Several pulsars show sudden cessation of pulsed emission, which is known as pulsar nulling. In this paper, the nulling behaviour of 15 pulsars is presented. The nulling fractions o…