SIMBAD references

2020ApJ...905L..19B - Astrophys. J., 905, L19-L19 (2020/December-3)

Expansion and age of the supernova remnant G350.1-0.3: high-velocity iron ejecta from a core-collapse event.


Abstract (from CDS):

We report Chandra observations of the highly asymmetric core-collapse supernova remnant G350.1-0.3. We document expansion over 9 yr away from the roughly stationary central compact object, with sky-plane velocities up to 5000 d4.5 km s–1 (d4.5is the distance in units of 4.5 kpc), redshifts ranging from 900 to 2600 km s–1, and three-dimensional space velocities approaching 6000 km s–1. Most of the bright emission comes from heavy-element ejecta particularly strong in iron. Iron-enhanced ejecta are seen at 4000-6000 km s–1, strongly suggesting that the supernova was not a common Type IIP event. While some fainter regions have roughly solar abundances, we cannot identify clear blast-wave features. Our expansion proper motions indicate that G350.1-0.3 is no more than about 600 yr old, independent of distance: the third youngest known core-collapse supernova in the Galaxy, and one of the most asymmetric.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Supernova remnants - Core-collapse supernovae - Ejecta - X-ray astronomy

Simbad objects: 11

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