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Astron. Astrophys. 347, 92-98 (1999)

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4. Discussion

The sub-millimeter is an important band for GRB studies because it is where the emission peaks in some bursts in the days to weeks following the burst. The sub-millimeter emission is not affected by extinction local to the source or interstellar scintillation. We have shown that sub-millimeter observations are important to:

  • Determine the breaks in the radio to sub-millimeter to optical spectrum so that the spectral shape can be compared to the synchrotron models.

  • Determine the evolution of the sub-millimeter flux.

  • Look for underlying quiescent sources that may be dusty star-forming galaxies at high redshifts.

To obtain a detailed understanding of the GRB counterpart behaviors will require observations of many bursters. To this end our program of Target of Opportunity observations using SCUBA is ongoing.

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© European Southern Observatory (ESO) 1999

Online publication: June 18, 1999