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Neil Gehrels Swift Observatory. Neil Gehrels Swift Observatory, previously called the Swift Gamma-Ray Burst Explorer, is a NASA three-telescope space observatory for studying gamma-ray bursts (GRBs) and monitoring the afterglow in X-ray, and UV/Visible light at the location of a burst. [5] It was launched on 20 November 2004, aboard a Delta II ...
The history of gamma-ray [1] began with the serendipitous detection of a gamma-ray burst (GRB) on July 2, 1967, by the U.S. Vela satellites. After these satellites detected fifteen other GRBs, Ray Klebesadel of the Los Alamos National Laboratory published the first paper on the subject, Observations of Gamma-Ray Bursts of Cosmic Origin. [2]
GRB 230307A. GRB 230307A was an extremely bright, long duration gamma-ray burst (GRB), likely produced as a consequence of a neutron star merger or black hole - neutron star merger event. It lasted around three minutes, [1] and was observed to have a gamma ray fluence of 3×10 -4 erg cm -2 in the 10 to 1,000 KeV (electronvolt) range making it ...
Make sure the person is lying flat on their back and on a firm surface. Put the heel (base) of your hand at the center of the person’s chest. Place your other hand on top of it, interlacing your ...
z = 0.125. Swift. Either a long-duration burst in which the presence of a bright supernova is ruled out, or a short-duration burst with extremely long-lasting gamma-ray emission. GRB 080319B. z = 0.937. Swift. The most (optically) luminous event of any nature observed in the universe to date. By far the brightest optical afterglow of any gamma ...
This class of GRB-like events was first discovered through the detection of Swift J1644+57 (originally classified as GRB 110328A) by the Swift Gamma-Ray Burst Mission on 28 March 2011. This event had a gamma-ray duration of about 2 days, much longer than even ultra-long GRBs, and was detected in many frequencies for months and years after.
SROSS-C2 was launched on 4 May 1994. The gamma ray burst experiments on board SROSS-C2 are an improved version of the GRB payload flown successfully on the SROSS-C satellite. The improvements include enhancements of the on-board memory and a better measurement of the background spectra after a burst event.
The platform code is composed as follows: A letter, P, indicating a passenger car platform; A letter indicating the configuration of the engine: Q indicates a transverse engine (Quer in German) L indicates a longitudinal engine (Längs in German) A digit indicating the platform size or class; A digit indicating the generation or evolution