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arXiv · 0912.5032

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

B. Arbutina·D. Ilic·K. Stavrev·D. Urosevic·B. Vukotic·D. Onic
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Abstract

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

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B. Arbutina, D. Ilic, K. Stavrev, D. Urosevic, B. Vukotic, D. Onic. 2009-12-26. Optical Observations of M81 Galaxy Group in Narrow Band [SII] and H_alpha Filters: Holmberg IX. https://doi.org/10.2298/saj0979087a

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