Abstract
Photometric, morphological and spectral grounds suggest that the peculiar nuclei regions of NGC 1097, 1672, 2997, 5236, and 7552 are composed basically of a normal nucleus surrounded by several large but otherwise normal (T e ∼8000 K,N e ∼1000/cm3) H II regions. The stellar components are also normal although in some cases (NGC 1097, 1672, 1808 and 7552) there is a larger contribution of late type stars.
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Pastoriza, M.G. Studies of galaxies with peculiar nuclei. Astrophys Space Sci 33, 173–188 (1975). https://doi.org/10.1007/BF00646017
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DOI: https://doi.org/10.1007/BF00646017