Authors: Vučetić, M. M.
Trčka, Ana
Arbutina, Bojan
Ćiprijanović, Aleksandra 
Pavlović, Marko
Urošević, Dragan 
Petrov, Nikola
Title: Optical observations of NGC 1156 galaxy in narrowband [SII] and Hα filters
Journal: Astronomical and Astrophysical Transactions
Volume: 30
Issue: 4
First page: 379
Last page: 386
Issue Date: 1-Jan-2018
ISSN: 10556796
DOI: 10.17184/eac.2051
© Cambridge Scientific Publishers. We present observations of a Magellanic-type dwarf irregular galaxy NGC 1156 in narrow band [SII] and Hα filters, carried out in November 2015, with the 2 m RCC telescope at Rozhen National Astronomical Observatory in Bulgaria. Although our observations were with the intention to find new extragalactic supernova remnant can- didates, we were successful in the detection of 59 HII regions. We give luminosity function and size distribution for the detected HII regions. Also, we found that re- lation between Hα luminosity and radius of HII regions in NGC 1156 has the slope of 2:7 ± 0:2 in logarithmic presentation, which is in good agreement with theoretical prediction for ionization-bounded HII regions.
Keywords: Galaxies | Individual | NGC1156-HII regions
Publisher: Cambridge Scientific

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