The geometric distance and binary orbit of PSR B1259-63

Abstract

The pulsar/massive star binary system PSR B1259-63 / LS 2883 is one of the best-studied gamma-ray binaries, a class of systems whose bright gamma-ray flaring can provide important insights into high-energy physics. Using the Australian Long Baseline Array we have conducted very long baseline interferometric observations of PSR B1259-63 over 4.4 years, fully sampling the 3.4-year orbital period. From our measured parallax of $0.38\pm 0.05$ mas we use a Bayesian approach to infer a distance of $2.6_{-0.3}^{+0.4}$ kpc. We find that the binary orbit is viewed at an angle of $154\pm 3$ degrees to the line of sight, implying that the pulsar moves clockwise around its orbit as viewed on the sky. Taking our findings together with previous results from pulsar timing observations, all seven orbital elements for the system are now fully determined. We use our measurement of the inclination angle to constrain the mass of the stellar companion to lie in the range 15-31$M_{\odot }$. Our measured distance and proper motion are consistent with the system having originated in the Cen OB1 association and receiving a modest natal kick, causing it to have moved $\sim$8 pc from its birthplace over the past $\sim 3\times 10^5$ years. The orientation of the orbit on the plane of the sky matches the direction of motion of the X-ray synchrotron-emitting knot observed by the Chandra X-ray Observatory to be moving away from the system.

Accepted by MNRAS. v2 is the journal-accepted version. Changes since v1 include a Bayesian approach to distance estimation, and discussion of Gaia DR2 results. 13 pages, 7 figures, 3 tables

References in corpus (13)

• The Gaia mission
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Gaia Data Release 1: Astrometry - one billion positions, two million proper motions and parallaxes
• DiFX: A software correlator for very long baseline interferometry using multi-processor computing environments
• Gamma-ray binaries: pulsars in disguise ?
• On Pulsar Distance Measurements and their Uncertainties
• Dos and don'ts of reduced chi-squared
• Discovery of High-Energy Gamma-Ray Emission from the Binary System PSR B1259-63/LS 2883 Around Periastron with Fermi
• Gaia data release 1: Principles of the photometric calibration of the G band
• Gaia data release 1, the photometric data
• The LBA Calibrator Survey of southern compact extragalactic radio sources - LCS1
• Sizing up the population of gamma-ray binaries
• Gaia Data Release 1: Validation of the photometry

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