SCUBA sub-millimeter observations of gamma-ray bursts
IV. GRB 021004, 021211, 030115, 030226, 041006
Smith, I. A., Tilanus, R. P. J., Tanvir, N., Barnard, V. E.,
Moriarty-Schieven, G. H., Frail, D. A., Wijers, R. A. M. J.,
Vreeswijk, P., Rol, E., & Kouveliotou, C.
We discuss our ongoing program of Target of Opportunity (ToO)
sub-millimeter observations of gamma-ray bursts (GRBs) using
the Sub-millimetre Common-User Bolometer Array (SCUBA) on the
James Clerk Maxwell Telescope (JCMT).
In this paper, we present the ToO observations of GRBs 021004,
021211, 030115, 030226, and 041006.
The observations of GRBs 021004, 021211, 030226, and 041006 all
started within ~1 day of the burst, but did not detect any
significant sub-millimeter emission from the reverse shock
and/or afterglow.
These observations put some constraints on the models for the
early emission, although the generally poor observing conditions
and/or the faintness of these afterglows at other wavelengths
limit the inferences that can be drawn from these lack of detections.
However, these observations demonstrate that SCUBA can perform rapid
observations of GRBs, and provide encouragement for future observations
in the Swift era.
None of these GRBs had significant sub-millimeter emission from their
host galaxies.
This adds to the indication that GRBs are not closely linked to the
most luminous dusty star-forming galaxies.
Status: Published 2005, A&A, 439, 987.
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