PSR J0636+5128: A Heated Companion in a Tight Orbit
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 = 95.8 minutes) 2.87 ms pulsar. The heated companion is clearly detected. Direct pulsar heating provides an acceptable model at the revised >700 pc parallax distance. The relatively shallow light curve modulation prefers an inclination i < 40° 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-rays and γ-rays.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 2018
- DOI:
- 10.3847/2041-8213/aad2db
- arXiv:
- arXiv:1807.04249
- Bibcode:
- 2018ApJ...862L...6D
- Keywords:
-
- gamma rays: stars;
- pulsars: general;
- pulsars: individual: PSR J0636+5128;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- doi:10.3847/2041-8213/aad2db