  Since its discovery in 1992, the superluminal X-ray transient GRS 1915+105
has been extensively observed in an attempt to understand its behaviour. We
present here first results from a multi-wavelength campaign undertaken from
July to September 1996. This study includes X-ray data from the RXTE All Sky
Monitor and BATSE, two-frequency data from the Nancay radio telescope, and
infrared photometry from the 1.8m Perkins telescope at Lowell Observatory. The
first long-term well-sampled IR light curve of GRS 1915+105 is presented herein
and is consistent with the interpretation of this source as a long-period
binary. We compare the various light curves, searching for correlations in the
behaviour of the source at differing wavelengths and for possible
periodicities.

Astrophysics