First optical identification of a supersoft X-ray source in M31
First optical identification of a supersoft X-ray source in M31
We propose the first association of an optical counterpart with a luminous supersoft X-ray source in M31, RX J0044.0+4118, observed with ROSAT in July 1991. The PSPC position is at 1.6ยดยด angular distance from a candidate nova in outburst in September of 1990. This is interesting because the incidence of โฆ