Discovery of an extremely low luminosity Seyfert 1 nucleus in the dwarf galaxy NGC 4395
Journal Article
·
· Astrophysical Journal; (USA)
- California Univ., Berkeley (USA)
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. 20 refs.
- OSTI ID:
- 5509280
- Journal Information:
- Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 342; ISSN ASJOA; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
GALAXIES
GALAXY NUCLEI
H2 REGIONS
IONIZATION
LUMINOSITY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SEYFERT GALAXIES
SPECTRA
VISIBLE RADIATION
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
GALAXIES
GALAXY NUCLEI
H2 REGIONS
IONIZATION
LUMINOSITY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SEYFERT GALAXIES
SPECTRA
VISIBLE RADIATION