Abstract
Kilonova explosions typically release ∼1050-51 erg in kinetic energy, which is sufficient to constitute a kilonova remnant (KNR); however, it has not yet been confirmed. In this work, we investigate the probable association between G4.8+6.2 and the guest star of AD 1163, which is recorded by the Korean ancient astronomers. Although the evidence available is insufficient to draw a definite conclusion, it is at least theoretically self-consistent that the guest star of AD 1163 was a historical kilonova associated with G4.8+6.2, considering the possible short visible timescale of AD 1163, the relatively high Galactic latitude of G4.8+6.2, and that G4.8+6.2 is spatially coincident with the guest star of AD 1163. Further observation of G4.8+6.2 is needed to test our hypothesis. If our interpretation is correct, our results indicate that young KNRs should have a large diameter and low surface brightness, unlike other young supernova remnants.
- Publication:
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Monthly Notices of the Royal Astronomical Society: Letters, Volume 490, Issue 1, p.L21-L25
- Pub Date:
- November 2019
- DOI:
- 10.1093/mnrasl/slz141
- arXiv:
- arXiv:1909.05714
- Bibcode:
- 2019MNRAS.490L..21L
- Keywords:
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- history and philosophy of astronomy; gravitational wave; ISM: supernova remnants;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print Comments:
- 6 pages, 3 figures, 1 table; doi:10.1093/mnrasl/slz141
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