# Targeted search for young radio pulsars in the SMC: Discovery of two new pulsars

## TL;DR

This paper reports the discovery of two new rotation-powered pulsars in the Small Magellanic Cloud through targeted radio surveys, expanding knowledge of pulsar populations in nearby galaxies.

## Contribution

First discovery of young pulsars in the SMC in over a decade using a targeted radio survey with advanced analysis techniques.

## Key findings

- Discovered two new pulsars: PSR J0043-73 and PSR J0052-72.
- Survey sensitivity reached a flux density of 0.039 mJy.
- Detected pulsars with periods of 937 ms and 191 ms.

## Abstract

We report the first rotation powered pulsars discovered in the Small Magellanic Cloud (SMC) in more than a decade. PSR J0043-73 and PSR J0052-72 were discovered during a Parkes Multi-Beam (PMB) survey of MCSNR J0127-7332, and five new, optically selected, supernova remnant (SNR) candidates identified by the XMM Newton survey. In addition to the candidates, we adjusted the PMB rotation to include an additional nine SNRs and pulsar wind nebulae. We searched for young pulsars (1 - 200 ms) employing a Fourier analysis with PRESTO, as well as a search for longer period pulsars (200 ms - 360 s) with a fast folding algorithm. Our targeted survey had a limiting flux density of 0.039 mJy for periods greater than 50 ms. Although not the main target of this search it was also sensitive to millisecond pulsars. PSR J0043-73 has a period and dispersion measure of 937.42937 (26) ms and 115.1 (3.4) pc cm$^{-3}$ respectively, and PSR J0052-72 has a period of 191.444328 (46) ms and a DM of 158.6 (1.6) pc cm$^{-3}$.