GRB 250702B: Ultra-Long Gamma-Ray Burst Explained

GRB 250702B, an ultra-long gamma-ray burst, lasted 7 hours. Researchers propose a black hole spiraling into a companion star as the cause, contrasting typical star collapse scenarios. Future telescopes may reveal more such events.

The ruptured, called GRB 250702B, was first found by NASA’s Fermi Gamma-ray Room Telescope in July. Such ruptureds are brilliant flashes triggered by jets fired out from energetic events, such as massive stars breaking down right into black holes or neutron celebrities merging, and they normally last no more than a few minutes.

Unusual Gamma-Ray Burst Discovery

Neights and her coworkers hope that more occasions like this could be observed in the future, thanks to upcoming telescopes like the Vera Rubin Observatory in Chile. For now, this gamma ray burst remains “an absurdity”, states Van Eerten.

The black hole would certainly then have actually taken in the celebrity from the inside-out, creating the powerful jets viewed as GRB 250702B and potentially setting off a faint supernova, albeit one that was too dim to spot at this range, despite the James Webb Space Telescope.

Black Hole Consuming Star

GRB 250702B, nonetheless, lasted for 25,000 seconds– or concerning 7 hours– making it the longest-known gamma-ray ruptured. Researchers had had a hard time to describe it, however Eliza Neights at NASA’s Goddard Room Flight Centre in the US and her colleagues currently recommend a unusual and uncommon possibility.

This explanation makes good sense for how an ultra-long ruptured like this might take place, claims Hendrik van Eerten at the University of Bathroom in the UK. “The disagreement postured in this paper is an extremely compelling one,” he says.

Alternative Explanation for GRB 250702B

In more-typical lengthy gamma-ray ruptureds, an enormous star falls down to form a black hole, launching jets as it passes away. In this situation, the team recommends the reverse– a pre-existing great void spiralled right into a companion celebrity whose external layers had increased late in its life, triggering the black hole to shed angular energy and fall towards the star’s core.