On the nature of the peculiar superthin galaxy UGC 12281
Philip G\"unster, Dominik J. Bomans
TL;DR
This paper investigates the unique properties of the superthin galaxy UGC 12281, focusing on its star formation activity, ionized gas, and potential dwarf companion, to understand star formation triggers in isolated low surface brightness galaxies.
Contribution
It provides detailed photometric and spectroscopic analysis of UGC 12281, revealing its star formation, ionized gas halo, and a possible dwarf companion, offering insights into star formation in isolated LSB galaxies.
Findings
Detection of an Hα halo around UGC 12281
Identification of a potential dwarf companion
Evidence of active star formation in a superthin galaxy
Abstract
UGC 12281 has been classified as having a pure disk and being a low surface brightness galaxy (LSBG), thus being an obvious member of the so-called superthin galaxies. At the same time it represents an extremely untypical type of LSBG due to its remarkable amount of current star formation and evidence for extraplanar ionized gas. This makes it become a perfect tool to investigate the triggering of star formation in LSB galaxies, located in an alleged isolated area. By means of deep photometry and long-slit spectroscopy we analyse the H halo and verify the existence of a potential dwarf companion which we found on processed SDSS images.
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