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Title:
An improved proper-motion measurement of SN 1006
Authors:
Long, Knox S.; Blair, William P.; van den Bergh, Sidney
Affiliation:
AA(Johns Hopkins University, Baltimore, MD), AB(Johns Hopkins University, Baltimore, MD), AC(Dominion Astrophysical Observatory, Victoria, Canada)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 333, Oct. 15, 1988, p. 749-753. Research supported by Johns Hopkins University. (ApJ Homepage)
Publication Date:
10/1988
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL PHOTOGRAPHY, CHARGE COUPLED DEVICES, STELLAR CORONAS, STELLAR MOTIONS, SUPERNOVA REMNANTS, X RAY ASTRONOMY, H ALPHA LINE, H BETA LINE, INTERSTELLAR MAGNETIC FIELDS, RADIO SOURCES (ASTRONOMY)
DOI:
10.1086/166784
Bibliographic Code:
1988ApJ...333..749L

Abstract

The authors have obtained CCD images of SN 1006 in the light of Hα, Hβ, and through a 6100 Å continuum filter in order to search for new optical filamentation and to obtain a more accurate measurement of the proper motion of the optical supernova remnant (SNR). A new filament in the NW was detected. The authors compare the optical, radio, and X-ray data for SN 1006 and suggest a consistent overall picture for the remnant. They infer a mean proper motion for the NW filament of 0.30±0.04 arcsec yr-1. This proper-motion measurement implies a distance of 1.7 - 3.1 kpc for SN 1006 assuming the recent determination of the shock velocity by Kirshner, Winkler, and Chevalier.

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