The distance of Kepler's supernova remnant

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astrometry, Supernova Remnants, Distance, Interstellar Extinction, Stellar Spectrophotometry

Scientific paper

Spectrophotometric scans at 9 A resolution of five different parts of the bright southwest filament of Kepler's supernova remnant (SNR) have been utilized to determine its distance. The Balmer decrement has been used with the Whitford reddening curve to derive a value of the logarithmic absorption at H-beta of 1.56 (plus 0.06 or minus 0.13) and a value of visual absorption of 3.47 (plus 0.13 or minus 0.29). A linear distance of 3.2 (plus or minus 0.7) kpc is suggested for the Kepler SNR.

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