Other
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.213..789r&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 213, NO.4/APR15, P. 789, 1985
Other
45
Scientific paper
Spectra at 8-13 μ m of the nuclei of five nearby bright spiral galaxies are presented. Four of the galaxies, IC 342, NGC 5195, NGC 5236 and NGC 253 display prominent spectral structure arising from gas and dust emission. They resemble the spectra of other galaxy nuclei undergoing vigorous nuclear star formation, and it is argued that the strong emission structure arises from the interaction of many H II regions in the central regions of the galaxies. NGC 4736 shows no evidence for emission in the dust and gas features seen in almost all starburst galaxies observed to date. It has been classed as a LINER, and the 10-μm spectrum resembles those of the Seyfert galaxies. It may be that the low-luminosity mid-infrared emission in this galaxy is more closely related to that seen in Seyfert galaxies rather than those with photoionized H II regions in their nuclei.
Aitken David K.
Roche Patrick F.
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