GRB 011211

GRB 011211
Event type	Gamma-ray burst
Constellation	Crater
Right ascension	168h 49m 4.8s
Declination	−21° 55′ 44.4″
Redshift	2.14 ±0.01, 2.14
Total energy output	5×1052 ergs
Other designations	GRB 011211
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GRB 011211 was a gamma-ray burst (GRB) detected on December 11, 2001. A gamma-ray burst is a highly luminous flash associated with an explosion in a distant galaxy and producing gamma rays, the most energetic form of electromagnetic radiation, and often followed by a longer-lived "afterglow" emitted at longer wavelengths (X-ray, ultraviolet, optical, infrared, and radio).

^ Gandolfi, Giangiacomo (12 December 2001). "GRB011211(=XRF011211): BeppoSAX refined positions". GCN Circulars. 1189: 1. Bibcode:2001GCN..1189....1G. Archived from the original on 31 August 2009. Retrieved 1 June 2010.

[1] Gandolfi, Giangiacomo (12 December 2001). "GRB011211(=XRF011211): BeppoSAX refined positions". GCN Circulars. 1189: 1. Bibcode:2001GCN..1189....1G. Archived from the original on 31 August 2009. Retrieved 1 June 2010.

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