Colloquia
ARI Institute ColloquiumTeeseminar: Working Group-Meeting on Experimental Stellar Dynamics
X-Astro Group Meeting on Extragalactic Astronomy
Heidelberg Joint Astronomical Colloquium
Physics Colloquium
MPIA Visitors' Seminar
Further Colloquia of the Faculty
28.02.2012 11:15h
Special Colloquium
Seminar room of the ARI
Ram Sagar Aryabhatta Res. Inst. of Obs. Sci
Possible Progenitors of GRB afterglows
Gamma ray bursts (GRBs) are brief (a few milliseconds to a few hundred seconds) intense flashes of radiation mostly in the KeV to GeV energy range. In fact, they constitute the brightest bursts of electromagnetic radiation in the Universe. A GRB exhibits two distinct phases of evolution: the burst and the afterglow. Unlike the bust, the afterglow is a multi-wavelength phenomenon ranging from X-ray, optical to radio bands, and lasting for about a few days to a few years. Optical observations of GRB afterglows provide valuable information about GRB distances, the nature of the emission, their environments and progenitors. The present status of the possible progenitors of the GRBs will be presented.
19.04.2012 11:15h
ARI Institute Colloquium
Seminar room of the ARI
tbd
26.04.2012 11:15h
ARI Institute Colloquium
Seminar room of the ARI
tbd
03.05.2012 11:15h
ARI Institute Colloquium
Seminar room of the ARI
tbd
Contact: S. Matyssek
