Discovery of an extremely low luminosity Seyfert 1 nucleus in the dwarf galaxy NGC 4395

Details Discovery of an extremely low luminosity Seyfert 1 nucleus in the dwarf galaxy NGC 4395 Discovery of an extremely low luminosity Seyfert 1 nucleus in the dwarf galaxy NGC 4395

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...342l..11f&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 342, July 1, 1989, p. L11-L14. Research supported by the Universi

Astronomy and Astrophysics

Astrophysics

115

Dwarf Galaxies, Galactic Nuclei, Light (Visible Radiation), Seyfert Galaxies, Stellar Luminosity, Emission Spectra, H Alpha Line, H Ii Regions, Line Spectra

Scientific paper

A Seyfert 1 nucleus was discovered in the center of the late-type dwarf galaxy NGC 4395. The optical specturm shows strong, narrow emission lines covering a wide range of ionization from forbidden O I to forbidden Fe X. Weak wings are visible in the permitted-line profiles and the luminosity of the broad H-alpha emission is found to be 1.2 X 10 to the 38th erg/s, making this the least luminous known Seyfert 1 nucleus. Possible explanations for the nuclear properties of NGC 4395 are considered.

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