Issue A&A Volume 439, Number 3, September I 2005 Page(s) 987 - 996 Section Extragalactic astronomy DOI http://dx.doi.org/10.1051/0004-6361:20053107

A&A 439, 987-996 (2005)
DOI: 10.1051/0004-6361:20053107

SCUBA sub-millimeter observations of gamma-ray bursts

IV. GRB 021004, 021211, 030115, 030226, 041006

I. A. Smith¹, R. P. J. Tilanus², N. Tanvir³, V. E. Barnard², G. H. Moriarty-Schieven², D. A. Frail⁴, R. A. M. J. Wijers⁵, P. Vreeswijk⁶, E. Rol⁷ and C. Kouveliotou<sup>8, 9

1</sup>  Department of Physics and Astronomy, Rice University, 6100 South Main, MS-108, Houston, TX 77005-1892, USA
    e-mail: iansmith@rice.edu
²  Joint Astronomy Centre, 660 N. Aohoku Place, Hilo, HI 96720, USA
³  Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield, Herts AL10 9AB, UK
⁴  National Radio Astronomy Observatory, PO Box O, Socorro, NM 87801, USA
⁵  Astronomical Institute "Anton Pannekoek", University of Amsterdam and Center for High-Energy Astrophysics, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands
⁶  European Southern Observatory, Alonso de Córdova 3107, Casilla 19001, Santiago 19, Chile
⁷  Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK
⁸  NASA Marshall Space Flight Center, SD-50, NSSTC, 320 Sparkman Drive, Huntsville, AL 35805, USA
⁹  Universities Space Research Association

(Received 22 March 2005 / Accepted 10 May 2005 )

Abstract
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.

Key words: gamma rays: bursts -- submillimeter

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