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High resolution spe...
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Sollerman, J.Stockholms universitet,Institutionen för astronomi
(författare)
High resolution spectroscopy of Balmer-dominated shocks in the RCW 86, Kepler and SN 1006 supernova remnants
- Artikel/kapitelEngelska2003
Förlag, utgivningsår, omfång ...
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2003-11-17
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EDP Sciences,2003
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:su-30973
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-30973URI
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https://doi.org/10.1051/0004-6361:20030839DOI
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Språk:engelska
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Sammanfattning på:engelska
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Klassifikation
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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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 30-40 km s-1, similar to what has been seen in other Balmer-dominated remnants. Of the remnants in our sample, SN 1006 is the fastest shock ( ~ 3000 km s-1). The narrow component Hα and Hβ lines in this remnant have a FWHM of merely 21 km s-1. 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. Based on observations collected at the European Southern Observatory, Paranal, Chile (ESO Programme 67.D-0579).
Ämnesord och genrebeteckningar
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ISM: supernova remnants
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shock waves
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ISM: individual objects: SN 1006
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ISM: individual objects: RCW 86
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ISM: individual objects: Kepler
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Astronomy
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astronomi
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Ghavamian, P.
(författare)
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Lundqvist, P.Stockholms universitet,Institutionen för astronomi(Swepub:su)lundq
(författare)
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Smith, R. C.
(författare)
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Stockholms universitetInstitutionen för astronomi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Astronomy and Astrophysics: EDP Sciences407, s. 249-2570004-63611432-0746
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