Details

Autor(en) / Beteiligte

• Lipunov, V M
• Kornilov, V G
• Gorbovskoy, E S
• Krylov, A V
• Tyurina, N V
• Kuvshinov, D A
• Belinski, A A
• Gritsyk, P A
• Sankovich, A V
• Vladimirov, V V

Titel

Discovery of an optical flare from GRB 060926 by the MASTER robotic telescope: Possible formation of a marginally rotating black hole

Ist Teil von

• Astronomy letters, 2008-03, Vol.34 (3), p.145-151

Ort / Verlag

Heidelberg: Springer Nature B.V

Erscheinungsjahr

2008

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The MASTER robotic telescope has obtained the first optical images of GRB 060926. We have discovered an optical flare from GRB 060926, a recurrent brightening that closely follows its behavior in the X-ray range. We have determined the spectral slope for GRB 060926 from the X-ray to optical range in the first minutes. Based on the spinar model, we show that the parameters of the optical and X-ray flares suggest that the gamma-ray burst resulted from the core collapse of a 7M star with an initial effective Kerr parameter of 7.6 and an initial magnetic-to-gravitational energy ratio of 10-4. (PUBLICATION ABSTRACT)