A nova-like red variable in M31
J Mould, J Cohen, JR Graham, D Hamilton, K Matthews, A Picard, N Reid, M Schmidt, T Soifer, C Wilson, RM Rich, J Gunn
Astrophysical Journal | Published : 1990
A late-type supergiant which appeared in the bulge of M31 in the last observing season faded 3 bolometric magnitudes in 100 days and is now no longer detectable. We suggest the object was a nova of an unusual type. © 1990. The American Astronomical Society. All rights reserved.