<i>Hubble</i> spectroscopy of LB-1: Comparison with B+black-hole and Be+stripped-star models
<i>Hubble</i> spectroscopy of LB-1: Comparison with B+black-hole and Be+stripped-star models
LB-1 has variously been proposed as either an X-ray dim B-type star plus black hole (B+BH) binary, or a Be star plus an inflated stripped star (Be+Bstr) binary. The Space Telescope Imaging Spectrograph (STIS) on board HST was used to obtain a flux-calibrated spectrum that is compared with non-LTE spectral …