Authors:
Gorosabel J., Castro-Tirado A.J., Pedersen H., Greiner J., Thompson D., Guerrero M., Oscoz A., Sabalisck N., Villaver E., Lund N.
Journal:
Astronomy and Astrophysics Supplement Series
Abstract:
We report on near-infrared and optical observations of the GRB 970616 error box and of the X-ray sources discovered by ASCA and ROSAT in the region. No optical transient was found either within the IPN band or in the X-ray error boxes, similarly to other bursts, and we suggest that either considerable intrinsic absorption was present (like GRB 970828) or that the optical transient displayed a very fast decline (like GRB 980326 and GRB 980519).
Keywords:
Gamma-rays: bursts; Methods: observational