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.

doi:10.2298/SAJ0979087A

Serbian Astronomical Journal (Jan 2009)

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.

Affiliations

Arbutina B.: Department of Astronomy, Faculty of Mathematics, Belgrade
Ilić D.: Department of Astronomy, Faculty of Mathematics, Belgrade
Stavrev K.: Institute of Astronomy, Bulgarian Academy of Sciences, Sofia, Bulgaria
Urošević D.: Department of Astronomy, Faculty of Mathematics, Belgrade
Vukotić B.: Astronomical Observatory, Belgrade
Onić D.: Department of Astronomy, Faculty of Mathematics, Belgrade

DOI: https://doi.org/10.2298/SAJ0979087A
Journal volume & issue: Vol. 2009, no. 179
pp. 87 – 94

Abstract

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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.

Published in Serbian Astronomical Journal

ISSN: 1450-698X (Print); 1820-9289 (Online)
Publisher: Astronomical Observatory, Department of Astronomy, Belgrade
Country of publisher: Serbia
LCC subjects: Science: Astronomy
Website: http://saj.matf.bg.ac.rs/

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