Optical Observations of M81 Galaxy Group in Narrow Band [SII] and H_alpha Filters: Holmberg IX

Serbian Astronomical Journal

卷:179

关键词: ISM: supernova remnants;    HII regions;    Methods: observational;    Techniques: photometric;    Galaxies: ISM;    Galaxies: individual: Holmberg IX;   

DOI  :  

来源: DOAJ

【 摘 要 】

We present observations of the nearby tidal dwarf galaxy Holmberg IX in M81 galaxy group in narrow band [SII] and H$alpha$ 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 H$alpha$ 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$alpha$ emission that probably represent uncatalogued HII regions.

【 授权许可】

Unknown