GBT24A-405

The GBT 820MHz & GBNCC Survey: Pulsar Timing & Candidates Confirmation

Abstract

Motivated by the successful reprocessing of pulsar surveys in the past, we have embarked on a project to reprocess a pilot project for an 820 MHz pulsar survey (GBT820) which was conducted using 820 MHz receiver of the Green Bank Telescope. In the first processing, GBT820 revealed three new pulsars, including a relativistic pulsar. Our reprocessing efforts incorporated a GPU acceleration-based search pipeline and resulted in the discovery of three additional pulsars, bolstering the need of reprocessing other pulsar surveys. The first objective of this proposal is to conduct follow-up timing observations of these newly discovered pulsars which would require 10 hours of telescope time. Inspired from the success of reprocessing the GBT820 survey, we plan to reprocess the data of the Green Bank North Celestial Cap (GBNCC) Survey, which utilized the 350 MHz receiver. We are certain to finish the reprocessing of the GBNCC survey before the beginning of semester 2024A. Given the survey's scope and sensitivity, we anticipate discovering 15 to 20 new pulsars. To ensure robust findings, we aim to observe 40 promising candidates, considering 50% of the candidates will be confirmed. The combination of these two projects necessitates 16.7 hours of observing time.

Investigators

Name	Institution
Ryan Lynch	Green Bank Observatory; West Virginia University
Rahul Sengar *	Wisconsin at Milwaukee, University of
Alexander McEwen	Wisconsin at Milwaukee, University of
Emmanuel Fonseca	British Columbia, University of; McGill University; West Virginia University
Maura McLaughlin	West Virginia University
Emilie Parent	Instituto de Ciencias del Espacio
William Fiore	West Virginia University
David Kaplan	Wisconsin at Milwaukee, University of

* indicates the PI