File:GRB 200826A - Collapse of a Thorne-Zytkow-like Object as the Aftermath of a WD-NS Coalescence.pdf
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[edit]DescriptionGRB 200826A - Collapse of a Thorne-Zytkow-like Object as the Aftermath of a WD-NS Coalescence.pdf |
English: The recently reported Type II Gamma-ray Burst (GRB) 200826A challenges the collapsar models by questioning how they can generate a genuinely short duration of the event. This paper proposes that the burst can originate from the collapse of a Thorne-Zytkow-like Object (TZlO). The TZlO consists of a central neutron star (NS) with a dense white dwarf (WD) material envelope and a disk, which are formed as the aftermath of a WD-NS coalescence. We found the collapse of such a TZlO can naturally explain the short duration of GRB 200826A. Furthermore, the collapse can produce a magnetar as the central object, which provides additional energy injection via magnetic dipole radiation to the ejected WD materials, causing a bump-like feature in the optical band and a shallow decay of the X-ray band. The disk wind shell induced by the TZlO at a large radius also interacts with the ejected materials, which explains the ``supernova bump" observed at ∼ 28 days. |
Date | |
Source | https://arxiv.org/abs/2109.06041 |
Author | See page 1 |
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current | 08:15, 21 August 2023 | 1,275 × 1,650, 10 pages (9.18 MB) | Юрий Д.К. (talk | contribs) | Uploaded a work by See page 1 from https://arxiv.org/abs/2109.06041 with UploadWizard |
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Software used | LaTeX with hyperref |
Conversion program | pdfTeX-1.40.21 |
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Page size | 612 x 792 pts (letter) |
Version of PDF format | 1.5 |
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