Optical observations of M81 galaxy group in narrow band [SII] and Hα filters: Holmberg IX
- Arbutina B.
- Ilić D.
- Stavrev K.
- Urošević D.
- Vukotić B.
- Onić D.
Publication date
January 2009
DOI Publisher
Astronomical Observatory, Department of Astronomy, Belgrade ISSN
1450-698X Journal
1820-9289Abstract
We present observations of the nearby tidal dwarf galaxy Holmberg IX in M81 galaxy group in narrow band [SII] and Hα filters, carried out in March and November 2008 with the 2m RCC telescope at NAO Rozhen, Bulgaria. Our search for resident supernova remnants (identified as sources with enhanced [SII] emission relative to their Hα emission) in this galaxy yielded no sources of this kind, besides M&H 10-11 or HoIX X-1. Nevertheless, we found a number of objects with significant H® emission that probably represent uncatalogued HII regions
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