Difference between revisions of "Triggers:GRBs"
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* in maximum can reach up to few mag, but the whole range observed | * in maximum can reach up to few mag, but the whole range observed | ||
* host galaxy can be visible | * host galaxy can be visible | ||
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| + | [[File:GRB-schematic_lightcurve.png|300px]] from Piran, 2005. | ||
[[File:GRB06-RAPTOR.png|400px]] from [http://ukads.nottingham.ac.uk/abs/2006ApJ...642L..99W Wozniak et al. 2006] | [[File:GRB06-RAPTOR.png|400px]] from [http://ukads.nottingham.ac.uk/abs/2006ApJ...642L..99W Wozniak et al. 2006] | ||
Revision as of 12:44, 8 September 2009
Very short-lived optical transients associated with enormous gamma-ray outbursts. A catalogue of GRBs is available here. Comprehensive recent review on GRBs and their physics can be found in Piran,2005
- time-scales from seconds to minutes
- in maximum can reach up to few mag, but the whole range observed
- host galaxy can be visible
from Piran, 2005.
from Wozniak et al. 2006
Detecting GRBs with Gaia
Only about 1% of GRBs is detectable by Gaia. The main feature visible in the data is steady and rapid decline over AF CCDs. Time sampling at AF CCDs level is 4.4s per CCD. If we also demand the transient to be visible in the second FOV (after 105 min), the efficiency drops dramatically.
from Piran,2005
