GBT21B-259

Followup Timing of Low-declination GBNCC Pulsars

Abstract

We request to use the Green Bank Telescope and its VEGAS backend for observing 12 isolated and binary radio pulsars discovered by the Green Bank North Celestial Cap (GBNCC) survey. We will use the 820-MHz prime focus receiver for all observations, and use VEGAS in its coherent-dispersion "fold" mode for 9 of the sources listed in this proposal that have phase-coherent timing solutions derived from GBNCC searching data; for the other 3 sources, we will acquire timeseries data to establish periodicities and obtain robust timing models when combined with archival GBNCC search data. These observations, while conducive of science projects that span pulsar and multi-messenger astrophysics, can be scheduled in a flexible manner; we will make use of recent algorithmic approaches for pulsar timing from sparse data sets. We nonetheless request observations on our proposed sources as they either yield initial constraints on fundamental parameters, like component masses in binary systems, or will yield similar constraints with occasional, continued timing observations. We request a maximum of 10.5 hours for the 21B semester, with a technical justification and usage plan provided in the attached proposal.

Investigators

Name	Institution
Emmanuel Fonseca *	British Columbia, University of; McGill University; West Virginia University
Ryan Lynch	Green Bank Observatory
David Kaplan	Wisconsin at Milwaukee, University of
Joeri van Leeuwen	Netherlands Institute for Radio Astronomy
Vicky Kaspi	McGill University
William Fiore	British Columbia, University of; West Virginia University
Xavier Siemens	Oregon State University; Wisconsin at Milwaukee, University of
Mayuresh Surnis	Manchester, University of; West Virginia University
Mallory Roberts	Eureka Scientific, Inc.
Megan DeCesar	George Mason University
Scott Ransom	National Radio Astronomy Observatory; Virginia, University of
Lina Levin	Manchester, University of; Manchester, University of
Vlad Kondratiev	Netherlands Institute for Radio Astronomy
Harsha Blumer	West Virginia University
Gabriella Agazie	West Virginia University; Wisconsin at Milwaukee, University of
Michael Mingyar	West Virginia University
Malcolm LaRose	Rochester Institute of Technology
Ingrid Stairs	British Columbia, University of
Hind Al Noori	Abu Dhabi, New York University
Evan Lewis	West Virginia University
Emilie Parent	Instituto de Ciencias del Espacio
Chia Min Tan	Manchester, University of; McGill University
Bradley Meyers	Curtin University
Ann Schmiedekamp	Pennsylvania State University Abington
Joseph Swiggum	West Virginia University; Wisconsin at Milwaukee, University of
Maura McLaughlin	West Virginia University
Alexander McEwen	Wisconsin at Milwaukee, University of

* indicates the PI