Determination of the orbital parameters of binary pulsars

Abstract

We present a simple method for determination of the orbital parameters of binary pulsars, using data on the pulsar period at multiple observing epochs. This method uses the circular nature of the velocity space orbit of Keplerian motion and produces preliminary values based on two one dimensional searches. Preliminary orbital parameter values are then refined using a computationally efficient linear least square fit. This method works for random and sparse sampling of the binary orbit. We demonstrate the technique on (a) the highly eccentric binary pulsar PSR J0514-4002 (the first known pulsar in the globular cluster NGC 1851) and (b) 47 Tuc T, a binary pulsar with a nearly circular orbit.

7 pages, 7 figures, 2 tables, Accepted by MNRAS, minor clarifications in references added

References in corpus (5)

• Observations of 20 millisecond pulsars in 47 Tucanae at 20 cm
• Timing the millisecond pulsars in 47 Tucanae
• GMRT Discovery of A Millisecond Pulsar in a Very Eccentric Binary System
• Determination of the orbital parameters of binary pulsars
• Timing the Eccentric Binary Millisecond Pulsar in NGC 1851

Cited by in corpus (14)

• The Green Bank North Celestial Cap Pulsar Survey III: 45 New Pulsar Timing Solutions
• PSR J1930-1852: a pulsar in the widest known orbit around another neutron star
• GMRT discovery of PSR J1544+4937, an eclipsing black-widow pulsar identified with a Fermi LAT source
• The Green Bank Northern Celestial Cap Pulsar Survey. VI. Timing and Discovery of PSR J1759+5036: A Double Neutron Star Binary Pulsar
• The Green Bank North Celestial Cap Survey. VII. 12 New Pulsar Timing Solutions
• Serendipitous Discovery of PSR J1431-6328 as a Highly-Polarized Point Source with the Australian SKA Pathfinder
• The MPIfR-MeerKAT Galactic Plane Survey II. The eccentric double neutron star system PSR J1208-5936 and a neutron star merger rate update
• Missing for 20 years: MeerKAT re-detects the elusive binary pulsar M30B
• A pulsar-helium star compact binary system formed by common envelope evolution
• The FAST Galactic Plane Pulsar Snapshot Survey -- V. PSR J1901+0658 in a double neutron star system
• Constraints on Undetected Long-Period Binaries in the Known Pulsar Population
• The FAST Galactic Plane Pulsar Snapshot Survey: VII. Six millisecond pulsars in compact orbits with massive white dwarf companions
• Mass measurements of the double neutron star system PSR J0641+0448
• The FAST Galactic Plane Pulsar Snapshot Survey. IX. Timing Three Binary Pulsars with Wide Orbits and Low Orbital Eccentricities