Free Access
Astron. Astrophys. Suppl. Ser.
Volume 138, Number 3, September 1999
Gamma-Ray Bursts in the Afterglow Era Contents Rome, November 3-6, 1998
Page(s) 577 - 578
Published online 15 September 1999
DOI: 10.1051/aas:1999360

Astron. Astrophys. Suppl. Ser. 138, 577-578

LOTIS: GRB follow-up observations at early times

H.S. Park1 - R.A. Porrata1 - G.G. Williams2 - E. Ables1 - D.L. Band5 - S.D. Barthelmy3,7 - R.M. Bionta1 - T.L. Cline3 - G.J. Fishman4 - N. Gehrels3 - D. Hartmann2 - K. Hurley6 - C. Kouveliotou4,7 - C.A. Meegan4

Send offprint request: H.S. Park,

1 - Lawrence Livermore National Laboratory, Livermore, CA 94550, U.S.A.
2 - Dept. of Physics and Astronomy, Clemson University, Clemson, SC 29634, U.S.A.
3 - NASA Goddard Space Flight Center, Greenbelt, MD 20771, U.S.A.
4 - NASA Marshall Space Flight Center, Huntsville, AL 35812, U.S.A.
5 - CASS 0424, University of California, San Diego, La Jolla, CA 92093, U.S.A.
6 - Space Science Laboratory, University of California, Berkeley, CA 94720, U.S.A.
7 - Unversity Space Research Association, U.S.A.

Received December 29, 1998; accepted March 23, 1999


LOTIS is an automated wide field-of-view telescope system capable of responding to GRB events as early as 10 s after a trigger from the GCN which rapidly distributes coordinates from the BeppoSAX, BATSE and RXTE instruments. Measurements of optical activity at these early times will provide important clues to the GRB production mechanism. In over two year's of operation, LOTIS has responded to 40 GCN triggers including GRB 971227 within 10 s and GRB 980703 within 5 hours. We report results from these events and constraints on simultaneous optical signals during these GRBs.

Key words: gamma-rays: bursts

Copyright The European Southern Observatory (ESO)

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.