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 | Abstract: | © 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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