Detection of High-velocity Na i Absorption Toward the Stellar Remnant of SN 1181 AD
Abstract
Abstract We report the detection of weak high-velocity Na i absorption at V ⊙ = −61.0 ± 0.2 km s −1 in the spectrum of the stellar remnant at the center of the Galactic supernova remnant of 1181 AD. This velocity is not unlike that seen in old, more evolved SN remnants, but is much less than the remnant’s ≃10 3 km s −1 expanding optical nebula. We briefly discuss its possible nature and origin.
Fields of Study & Subjects
Gamma-ray bursts and supernovae
Astrophysics and Cosmic Phenomena
Astrophysical Phenomena and Observations
Publication details
- Journal / source
- Research Notes of the AAS
- Publisher
- American Astronomical Society
- Volume
- 10
- Issue
- 4
- Pages
- 76–76
- Publication date
- 8 April 2026