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Keyword: gamma-ray burst
![О происхождении золота](https://images.astronet.ru/pubd/2017/10/15/0001390680/nsmerger3_heasarc_960.preview.jpg)
15.10.2017
Where did the gold in your jewelry originate? No one is completely sure. The relative average abundance in our Solar System appears higher than can be made in the early universe, in stars, and even in typical supernova explosions.
![GW170817: регистрация излучения разных видов от явления слияния](https://images.astronet.ru/pubd/2017/10/16/0001390709/ns.preview.jpg)
16.10.2017
Both gravitational and electromagnetic radiations have been detected in rapid succession for an explosive merging event for the first time. Data from the outburst fit well with a spectacular binary neutron-star death-spiral. The explosive episode was seen on August 17 in nearby NGC 4993, an elliptical galaxy only 130 million light years distant.
![WR 104: звёздная система в виде вертушки](https://images.astronet.ru/pubd/2014/06/03/0001313779/wr104_keck_960.preview.jpg)
3.06.2014
Might this giant pinwheel one-day destroy us? Probably not, but investigation of the unusual star system Wolf-Rayet 104 has turned up an unexpected threat. The unusual pinwheel pattern has been found to be created by energetic winds of gas and dust that are expelled and intertwine as two massive stars orbit each other.
![Гамма-всплеск и сверхновая](https://images.astronet.ru/pubd/2003/09/08/0001192837/snorgrb_ntt_big.preview.jpg)
8.05.1998
Did a gamma-ray burst precede this supernova? This intriguing suggestion came to light yesterday with the discovery of an evolving supernova that is potentially coincident with the position of gamma-ray burst GRB 980425, which occurred just two weeks ago. If true, this would tie together the two most violent phenomena known in the universe.
![Гамма-всплеск 980703: надежное красное смещение](https://images.astronet.ru/pubd/2004/03/25/0001197270/grb980703_keck_big.preview.gif)
13.07.1998
In the old days, just over a year ago, astronomers had little idea of the true distance to gamma-ray bursts. Did these enigmatic explosions occur in our outer Galaxy, or in the outer Universe?
![Мощный гамма-всплеск](https://images.astronet.ru/pubd/2003/09/08/0001192836/grb971214_hst_big.preview.jpg)
7.05.1998
Gamma-ray bursts are thought to be the most powerful explosions in the Universe, yet the cause of these high-energy flashes remains a mystery. Blindingly bright for space-based gamma-ray detectors the burst sources are so faint at visible wavelengths that large telescopes and sensitive cameras are required to search for them.
![Спутник HETE-2 верхом на Пегасе](https://images.astronet.ru/pubd/2000/12/19/0001162404/hete2_prelaunch_big.preview.jpg)
12.10.2000
The Stargazer, a modified Lockheed L-1011 aircraft, soared into the skies above Kwajalein Atoll in the pacific on October 9th. A small satellite observatory known as the High Energy Transient Explorer - 2 (HETE-2) was tucked into Stargazer's winged Pegasus rocket, slung beneath the large trimotor jet's fuselage.
![Камера на борту "Свифта"](https://images.astronet.ru/pubd/2004/12/24/0001201570/swift1_5times.preview.gif)
24.12.2004
A forward-facing RocketCam (TM) mounted inside the payload fairing of a Delta II rocket captured these dramatic video frames on November 20th -- as the Swift satellite observatory journeyed to an orbit 600 kilometers above planet Earth. Some frames were interpolated to correct for transmission problems.
![Вспышки гамма-излучения](https://images.astronet.ru/pubd/2001/03/15/0001166656/firstgrb_vela4.preview.gif)
2.07.2000
Gamma-Ray Bursts (GRBs) were discovered by accident. Thirty three years ago today, satellites first recorded a GRB. The data plotted here show that the count rate of the satellite gamma-ray instrument abruptly jumped indicating a sudden flash of gamma-rays.
![Вспышка гамма-всплеска](https://images.astronet.ru/pubd/2006/11/12/0001217659/grb_animation.preview.gif)
4.11.1999
Using graphics and data from NASA's Compton Gamma Ray Observatory, this animation illustrates one of the most exciting mysteries of modern astrophysics, gamma-ray bursts. Incredibly gamma-ray bursts, sudden flashes of radiation with over 100,000 times the energy of visible light photons, occur several times a day.
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