Probe of dark galaxies via disturbed/ lopsided isolated galaxies
Igor D. Karachentsev, Valentina E. Karachentseva, Walter K., Huchtmeier, Dmitry I. Makarov, and Serafim S. Kaisin
TL;DR
This study investigates isolated galaxies to identify signs of dark galaxies through disturbances, using spectral and photometric data to constrain the cosmic abundance of dark galaxies.
Contribution
It provides observational evidence and constraints on the prevalence of dark galaxies by analyzing disturbed isolated galaxies.
Findings
Only eight strongly disturbed galaxies found among ~1500 isolated galaxies
Spectral and photometric observations suggest interactions with dark objects
Results significantly restrict the cosmic abundance of dark galaxies
Abstract
Searching for lopsided/interacting objects among ~1500 isolated galaxies yields only eight strongly disturbed galaxies which may be explained as a result of their interaction with massive dark objects. We present results of spectral and photometric observations of these galaxies performed with the 6-m telescope that lead to significant restriction on cosmic abundance of dark galaxies.
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