The Green Bank North Celestial Cap Survey. IX. Timing Follow-up for 128 Pulsars

McEwen, A. E.; Swiggum, J. K.; Kaplan, D. L.; Tan, C. M.; Meyers, B. W.; Fonseca, E.; Agazie, G. Y.; Chawla, P.; Crowter, K.; DeCesar, M. E.; Dolch, T.; Dong, F. A.; Fiore, W.; Fonseca, E.; Good, D. C.; Istrate, A. G.; Kaspi, V. M.; Kondratiev, V. I.; van Leeuwen, J.; Levin, L.; Lewis, E. F.; Lynch, R. S.; Masui, K. W.; McKee, J. W.; McLaughlin, M. A.; Al Noori, H.; Parent, E.; Ransom, S. M.; Siemens, X.; Spiewak, R.; Stairs, I. H.

Abstract

The Green Bank North Celestial Cap survey is one of the largest and most sensitive searches for pulsars and transient radio objects. Observations for the survey have finished; priorities have shifted toward long-term monitoring of its discoveries. In this study, we have developed a pipeline to handle large data sets of archival observations and connect them to recent, high-cadence observations taken using the Canadian Hydrogen Intensity Mapping Experiment telescope. This pipeline handles data for 128 pulsars and has produced measurements of spin, positional, and orbital parameters that connect data over observation gaps as large as 2000 days. We have also measured glitches in the timing residuals for five of the pulsars included and proper motion for 19 sources (13 new). We include updates to orbital parameters for 19 pulsars, including nine previously unpublished binaries. For two of these binaries, we provide updated measurements of post-Keplerian binary parameters, which result in much more precise estimates of the total masses of both systems. For PSR J0509+3801, the much improved measurement of the Einstein delay yields much improved mass measurements for the pulsar and its companion, 1.399(6) M ⊙ and 1.412(6) M ⊙, respectively. For this system, we have also obtained a measurement of the orbital decay due to the emission of gravitational waves, P ̇ B = − 1.37 ( 7 ) × 10 − 12 , which is in agreement with the rate predicted by general relativity for these masses.

Citation

McEwen, A. E., Swiggum, J. K., Kaplan, D. L., Tan, C. M., Meyers, B. W., Fonseca, E., …Stairs, I. H. (2024). The Green Bank North Celestial Cap Survey. IX. Timing Follow-up for 128 Pulsars. The Astrophysical journal, 962(2), Article 167. https://doi.org/10.3847/1538-4357/ad11f0

• Journal Article Type: Article
• Acceptance Date: Nov 29, 2023
• Online Publication Date: Feb 16, 2024
• Publication Date: Feb 20, 2024
• Deposit Date: Feb 21, 2024
• Publicly Available Date: Feb 22, 2024
• Journal: Astrophysical Journal
• Print ISSN: 0004-637X
• Electronic ISSN: 1538-4357
• Publisher: American Astronomical Society
• Peer Reviewed: Peer Reviewed
• Volume: 962
• Issue: 2
• Article Number: 167
• DOI: https://doi.org/10.3847/1538-4357/ad11f0
• Keywords: Space and Planetary Science; Astronomy and Astrophysics
• Public URL: https://hull-repository.worktribe.com/output/4556800