Gammaless gamma-ray bursts?

Title

Gammaless gamma-ray bursts?

Creator

Arun K.; Sivaram C.

Description

One of the possible resolutions of the compactness problem in gamma-ray bursts (GRBs) is by invoking the Lorentz factors associated with the relativistic bulk motion. This model applies to GRBs where sufficient energy is converted to accelerate the ejected matter to relativistic speeds. In some situations, this may not be a possible mechanism, and as a result, the gamma rays are trapped in the region. In this work, we look at such possible scenarios and where the neutrino pair production process can dominate. As a result, the neutrinos can escape freely. This could give rise to a scenario where the release of neutrinos precedes the gamma-ray emission that is much attenuated. This model can thus possibly explain why fewer GRBs are observed than what is expected. 2023, Indian Association for the Cultivation of Science.

Source

Indian Journal of Physics, Vol-98, No. 2, pp. 407-410.

Date

2024-01-01

Publisher

Springer

Subject

Compactness problem; Gamma-ray bursts; Neutrinos

Coverage

Arun K., CHRIST (Deemed to be University), Bangalore, 560 029, India; Sivaram C., Indian Institute of Astrophysics, Bangalore, 560 034, India

Rights

Restricted Access

Relation

ISSN: 9731458

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.1007/s12648-023-02814-9

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