GRB 021004

Last Updated:
2017 Jan 15 15:49 UTC

Source file:
grb021004.txt

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GRB 021004

Position: 00 26 54.689 +18 55 41.3 (2000.0) D.W. Fox et al.

At 1206UT on 2002 October 4 the HETE spacecraft detected a long gamma ray burst. Less than 10 minutes later the Caltech-NRAO GRB collaboration identifed a 15th magnitude optical transient in Pisces. This transient was still visible at around 18th magnitude as night fell in the UK and a number of observers obtained images. To our knowledge these are the first UK detections of a GRB afterglow.

It seems that the redshift of this object is z=2.3 which works out to be around 11 to 12 billion light years away!

Images: 2002 October 4, 1844 (James). This is the first UK detection as far as we know.; 2002 October 4, 1924 (Armstrong),; 2002 October 4, 1940 (James),; 2002 October 4, 1945 (Mobberley),; 2002 October 4, 2058 (Boles),; 2002 October 4, 2348 (Strange),; 2002 October 6, 2037 (Boles),

Spectra

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Lightcurves: Decline 2002 October 4 (James).

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GRB 021004