A search for 'dwarf' Seyfert nuclei. 2: an optical spectral atlas of the nuclei of nearby galaxies

view Abstract Citations (438) References (42) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Search for ``Dwarf'' Seyfert Nuclei. II. an Optical Spectral Atlas of the Nuclei of Nearby Galaxies Ho, L. C. ; Filippenko, A. V. ; Sargent, W. L. Abstract We present an optical spectral atlas of the nuclear region (generally 2" X 4", or r <~ 200 Pc) of a magnitude-limited survey of 486 nearby galaxies having B_T_ <= 12.5 mag and δ > 0^deg^. The double spectrograph on the Hale 5 m telescope yielded simultaneous spectral coverage of ~4230-5110A and ~6210-6860A, with a spectral resolution of ~4 A in the blue half and ~2.5 A in the red half. This large, statistically significant survey contains uniformly observed and calibrated moderate-dispersion spectra of exceptionally high quality. The data presented in this paper will be used for various systematic studies of the physical properties of the nuclei of nearby galaxies, with special emphasis on searching for low-luminosity active galactic nuclei, or "dwarf" Seyferts. Our survey led to the discovery of four relatively obvious but previously uncataloged Seyfert galaxies (NGC 3735,4395,4639, and 6951), and many more galactic nuclei showing subtle evidence for Seyfert activity. We have also identified numerous low-ionization nuclear emission-line regions (LINERs), some of which may he powered by nonstellar processes. Of the many "starburst" nuclei in our sample, several exhibit the spectral features of Wolf-Rayet stars. Publication: The Astrophysical Journal Supplement Series Pub Date: June 1995 DOI: 10.1086/192170 Bibcode: 1995ApJS...98..477H Keywords: Astronomical Catalogs; Galactic Nuclei; Seyfert Galaxies; Sky Surveys (Astronomy); Star Formation; Starburst Galaxies; Wolf-Rayet Stars; Spectrographs; Stellar Magnitude; Velocity Distribution; Astronomy; ATLASES; GALAXIES: NUCLEI; GALAXIES: SEYFERT full text sources ADS | data products SIMBAD (506) NED (503) CDS (2) Related Materials (7) Catalog: 1997yCat..20980477H Part 1: 1985ApJS...57..503F Part 3: 1997ApJ...487..568H Part 4: 1997ApJS..112..315H Part 5: 1997ApJS..112..391H Part 6: 2003ApJ...583..159H Part 7: 2009ApJS..183....1H