Study of the Ultra-Long GRB 220627A: Exploring a Possible Blue Supergiant Collapsar Origin

astro-ph.HE

Submitted: 2026-10-02

Updated: 2026-10-02

Comments: 18 pages, 6 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Sources

• GRB 121027A: long-lasting, energetic X-ray flares and clues to radiation mechanism and progenitor star

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