Arp 187 [SEP] constellation
Arp 187
Arp 187 is a radio galaxy and merger remnant located in the constellation Eridanus. It is an interacting galaxy pair (MCG-02-13-040). It is included in the Atlas of Peculiar Galaxies in the category galaxies with narrow filaments.
The galaxy has two prominent radio lobes, however the emission of its AGN in X-ray is low, and so is the thermal output of the AGN torus as observed in infrared, suggesting that it has been quenched. The detection of a narrow line region
NGC 3227
NGC 3227 is an intermediate spiral galaxy that is interacting with the dwarf elliptical galaxy NGC 3226. The two galaxies are one of several examples of a spiral with a dwarf elliptical companion that are listed in the "Atlas of Peculiar Galaxies". Both galaxies may be found in the constellation Leo.
Sir William Herschel already recognised them as a 'double nebula' and they were jointly listed as Holm 187 in the "Catalogue of Double and Multiple Galaxies" and as Arp 94 in the "Atlas of Peculiar