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arXiv · 1807.04249

PSR J0636+5128: A Heated Companion in a Tight Orbit

Paul Draghis·Roger W. Romani
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Abstract

We present an analysis of archival Gemini g', r', K and Keck H, K_s imaging of this nearby short period binary (P_B=95.8min) 2.87ms pulsar. The heated companion is clearly detected. Direct pulsar heating provides an acceptable model at the revised >700pc parallax distance. The relatively shallow light curve modulation prefers an inclination i<40deg; this high latitude view provides a likely explanation for the lack of radio signatures of wind dispersion or eclipse. It also explains the low minimum companion mass and, possibly, the faintness of the source in X- and gamma-rays.

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Paul Draghis, Roger W. Romani. 2018-07-11. PSR J0636+5128: A Heated Companion in a Tight Orbit. https://doi.org/10.3847/2041-8213/aad2db

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