Discovery of three new pulsars in a 610 MHz pulsar survey with the GMRT

TL;DR

This paper reports the discovery of three new pulsars from a 610 MHz survey of the north Galactic plane using GMRT, including their timing and flux details, and notes nulling behavior in one pulsar.

Contribution

First blind survey at 610 MHz of the north Galactic plane leading to three new pulsar discoveries with detailed timing and flux measurements.

Findings

Discovered three new pulsars with periods of 318, 933, and 1056 ms.

Detected pulse nulling in PSR J2208+5500.

Survey sensitivity was approximately 1 mJy.

Abstract

We report on the discovery of three new pulsars in the first blind survey of the north Galactic plane (45 degrees < l < 135 degrees; |b| < 1 degrees with the Giant Meterwave Radio telescope (GMRT) at an intermediate frequency of 610 MHz. The survey covered 106 square degrees with a sensitivity of roughly 1 mJy to long-period pulsars (pulsars with period longer than 1 s). The three new pulsars have periods of 318, 933, and 1056 ms. Their timing parameters and flux densities, obtained in follow up observations with the Lovell Telescope at Jodrell Bank and the GMRT, are presented. We also report on pulse nulling behaviour in one of the newly discovered pulsars, PSR J2208+5500.