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Title:
The Distance to the VELA Supernova Remnant
Authors:
Cha, Alexandra N.; Sembach, Kenneth R.; Danks, Anthony C.
Publication:
The Astrophysical Journal, Volume 515, Issue 1, pp. L25-L28. (ApJL Homepage)
Publication Date:
04/1999
Origin:
APJ
ApJ Keywords:
ISM: CLOUDS, ISM: INDIVIDUAL: NAME: VELA SUPERNOVA REMNANT, LINE: PROFILES, ISM: SUPERNOVA REMNANTS
DOI:
10.1086/311968
Bibliographic Code:
1999ApJ...515L..25C

Abstract

We have obtained high-resolution Ca II and Na I absorption-line spectra toward 68 OB stars in the direction of the Vela supernova remnant. The stars lie at distances of 190-2800 pc as determined by Hipparcos and spectroscopic parallax estimations. The presence of high-velocity absorption attributable to the remnant along some of the sight lines constrains the remnant distance to 250+/-30 pc. This distance is consistent with several recent investigations that suggest that the canonical remnant distance of 500 pc is too large.
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