Upper Limits for the Visible Counterpart of the Hulse-Taylor Binary Pulsar
The time-averaged intensity of visible pulses from PSR 1913+16 is fainter than V = 23 mag. The absence of visible objects at the pulsar position on the Sky Survey implies a rough limit of M > 3 for the absolute magnitude of the pulsar's binary companion.
Additional Information© 1976 American Astronomical Society. Received 1976 February 6; revised 1976 March 19. We are indebted to J. H. Taylor, R. Hulse, and G. E. Gullahorn for valuable discussions and for providing us with data in advance of publication.
Published - 1976ApJ___206L_143K.pdf