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Gamma Ray Flare

All articles tagged with #gamma ray flare

science1 year ago•5 min saved

M87 Black Hole's Jet Emits Unprecedented Gamma-Ray Flare

A recent study published in Astronomy and Astrophysics details the first observation of a high-energy gamma-ray flare from the supermassive black hole in galaxy M87 in over a decade. The flare, detected during the 2018 Event Horizon Telescope (EHT) campaign, involved over 25 telescopes and revealed a bright burst of high-energy emission. This discovery provides new insights into the physics surrounding M87's black hole, particularly the disk-jet connection and gamma-ray emission mechanisms. The flare's rapid variability suggests a small emission region, offering a unique opportunity to study particle acceleration in black hole jets.

via Phys.org|

#astrophysics #event-horizon-telescope #gamma-ray-flare

science1 year ago•4 min saved

Black Hole Capture Interrupted by Cosmic Explosion

Astronomers using the Event Horizon Telescope captured a rare gamma-ray flare from the supermassive black hole in galaxy M87, marking the first such event observed in over a decade. This flare, linked to the black hole's astrophysical jets, provides new insights into the complex structure and behavior of these jets, although the exact source and cause of the gamma-ray emission remain a mystery. The findings, published in Astronomy & Astrophysics, offer valuable data for future research on particle acceleration in black hole jets.

via ScienceAlert|

#astrophysical-jets #black-hole #event-horizon-telescope

astronomy3 years ago•5 min saved

Astrophysicists Discover Unprecedented Brightness in Binary Black Hole System.

Astronomers have discovered a second supermassive black hole in the heart of a distant galaxy, OJ 287, located around 5 billion light-years away. The second black hole has a mass of about 150 million suns and orbits a black hole equivalent to over 18 billion suns. Both black holes are feeding on gas and dust, and the second black hole has a peculiar oblong orbit that sends it plunging through a massive disk of red-hot dust and gas around its companion. The researchers were able to model the flattened, oblong orbit of the second black hole and the timing of the accretion-disk flares it creates. The confirmation of a binary black hole pairing makes the system an ideal candidate for the detection of gravitational waves.

via Space.com|

#accretion-disk #astronomy #black-holes