October 20, 2025Open Access

GRB 250702B: Discovery of a Gamma-Ray Burst from a Black Hole Falling into a Star

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ENEliza NeightsGoddard Space Flight Center EBEric BurnsLouisiana State University CFChris L. FryerAmes Research Center

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Implication

Analysis reveals a 25,000 second gamma-ray burst powered by a black hole consuming a star, suggesting it may be linked to ultra-long gamma-ray bursts.

Key Points

GRB 250702B is the longest gamma-ray burst observed, lasting 25,000 seconds, highlighting an extreme astrophysical phenomenon.
Characteristics include a hard spectrum and subsecond variability, indicating an ultra-relativistic jet from a rapidly spinning stellar-mass central engine.
The burst contradicts existing models, supporting the helium merger model as it shows black hole interactions with a stripped star.
This discovery provides insight into resemblances between certain gamma-ray bursts and other cosmic events like supernovae.

Cite This Study

Neights et al. (2025) studied this question.

synapsesocial.com/papers/68f6196ee0bbbc94fac363e9 https://doi.org/10.48550/arxiv.2509.22792

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Implication

Analysis reveals a 25,000 second gamma-ray burst powered by a black hole consuming a star, suggesting it may be linked to ultra-long gamma-ray bursts.

GRB 250702B: Discovery of a Gamma-Ray Burst from a Black Hole Falling into a Star

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Cite This Study

GRB 250702B: Discovery of a Gamma-Ray Burst from a Black Hole Falling into a Star

Discussion

Member takes

Implication

Key Points

Cite This Study

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