Format

Send to:

Choose Destination
See comment in PubMed Commons below
Science. 1998 Feb 13;279(5353):1011-4.

Photometry and spectroscopy of the GRB 970508 optical counterpart

Author information

  • 1A. J. Castro-Tirado and J. Gorosabel, Laboratorio de Astrofisica Espacial y Fisica Fundamental, INTA, Madrid, Spain. N. Benitez and E. Martinez-Gonzalez, Instituto de Fisica de Cantabria, Santander, Spain. C. Wolf, R. Fockenbrock, K. Birkle, Ma.

Abstract

An optical transient within the error box of the gamma ray burst GRB 970508 was imaged 4 hours after the event. It displayed a strong ultraviolet excess, and reached maximum brightness 2 days later. The optical spectra did not show any emission lines, and no variations on time scales of minutes were observed for 1 hour during the decline phase. According to the fireball and afterglow models, the intensity should rise monotonically before the observed optical maximum, but the data indicate that another physical mechanism may be responsible for the constant phase seen during the first hours after the burst.

PMID:
9461429
[PubMed - as supplied by publisher]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Write to the Help Desk