The binary millisecond pulsar PSR J1023+0038 - II. Optical spectroscopy
We present time-resolved optical spectroscopy of the `redback' binary millisecond pulsar system PSR J1023+0038 during both its radio pulsar (2009) and accretion disc states (2014 and 2016). We provide observational evidence for the companion star being heated during the disc state. We observe a spectral type change along the orbit, from ˜G5 to ˜F6
Shahbaz, T. et al.
Fecha de publicación:
9
2019