SIMBAD references

2003A&A...407..249S - Astronomy and Astrophysics, volume 407, 249-257 (2003/8-3)

High resolution spectroscopy of Balmer-dominated shocks in the RCW 86, Kepler and SN 1006 supernova remnants.


Abstract (from CDS):

We report results from high resolution optical spectroscopy of three non-radiative galactic supernova remnants, RCW 86, Kepler's supernova remnant and SN 1006. We have measured the narrow component Hα line widths in Balmer-dominated filaments in RCW 86 and SN 1006, as well as the narrow component width in a Balmer-dominated knot in Kepler's SNR. The narrow component line widths measured in RCW 86 and Kepler's SNR show FWHM of 30-40km/s, similar to what has been seen in other Balmer-dominated remnants. Of the remnants in our sample, SN 1006 is the fastest shock (∼3000km/s). The narrow component Hα and Hβ lines in this remnant have a FWHM of merely 21km/s. Comparing the narrow component widths measured in our sample with those measured in other remnants shows that the width of the narrow component does not correlate in a simple way with the shock velocity. The implications for the pre-heating mechanism responsible for the observed line widths are discussed.

Abstract Copyright:

Journal keyword(s): ISM: supernova remnants - shock waves - ISM: individual objects: SN 1006 - ISM: individual objects: RCW 86 - ISM: individual objects: Kepler

Simbad objects: 10

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