WebGRB 090423 was a gamma-ray burst (GRB) detected by the Swift Gamma-Ray Burst Mission on April 23, 2009 at 07:55:19 UTC whose afterglow was detected in the infrared and enabled astronomers to determine that its redshift is z = 8.2, which makes it one of the most distant objects detected to date with a spectroscopic redshift (GN-z11, discovered in …

WebGammablitze, Gammastrahlenblitze, Gammastrahlenausbrüche oder auch Gammastrahlenexplosionen (englisch gamma-ray bursts, oft abgekürzt GRB) sind Energieausbrüche sehr hoher Leistung im Universum, von denen große Mengen elektromagnetischer Strahlung ausgehen.. Die Entstehung der Gammablitze ist noch …

WebEl brote de rayos gamma más distante es el GRB 090423, descubierto en abril de 2009, tiene un corrimiento hacia el rojo de z=8.2. [58] Mientras que ULAS J1342+0928 es el cuásar conocido más lejano, con un valor de z=7.54. [59] La radio galaxia más lejana es TN J0924-2201 y tiene un desplazamiento de z=5.2. [60] El material molecular más ...

WebThe observable universe is a ball-shaped region of the universe comprising all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time, because the electromagnetic radiation from these objects has had time to reach the Solar System and Earth since the beginning of the cosmological …

Web확인된 가장 먼 천체(2016년 기준)는 gn-z11로 분류된 은하이다. 2009년에 감마선 폭발 grb 090423은 8.2의 적색편이를 갖는 것으로 밝혀졌는데, 이는 우주의 나이가 겨우 6억3000만 년이었을 때 폭발을 일으킨 붕괴하는 항성을 나타낸다.

WebEvents with a duration of less than about two seconds are classified as short gamma-ray bursts. These account for about 30% of gamma-ray bursts, but until 2005, no afterglow had been successfully detected from any short event and little was known about their origins. Since then, several dozen short gamma-ray burst afterglows have been detected and …

WebIn physics, a redshift is an increase in the wavelength, and corresponding decrease in the frequency and photon energy, of electromagnetic radiation (such as light).The opposite change, a decrease in wavelength and simultaneous increase in frequency and energy, is known as a negative redshift, or blueshift.The terms derive from the colours red and blue …

WebThe GRB was observed in 2009, however its distance was not announced until 2011. GRB 090423: April 2009 — May 2011 z=8.2 This was the first GRB to become the most distant object in the universe. GRB 080913: September 2008 — April 2009 z=6.7 GRB 050904: September 2005 — September 2008 z=6.29 GRB 000131

WebI GRB sono eventi cosmologici, situati in galassie esterne alla Via Lattea e talvolta la fonte viene rilevata fino all'estremità dell'universo visibile. Il lampo gamma più lontano finora osservato, denominato GRB 090423, testimonia una esplosione stellare catastrofica avvenuta più di 13 miliardi di anni fa.

WebUn sursaut gamma ou sursaut de rayons gamma (SRG [1] ; en anglais gamma-ray bursts, abrégé en GRB ; quelquefois traduit par « explosion de rayons gamma » [2]) est en astronomie une bouffée de photons gamma qui apparaît de manière aléatoire dans le ciel.Il est caractérisé par sa brièveté (de quelques secondes à quelques minutes) et par la …