NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-12-14 T22:31:19 PST
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For refcode 1995ApJS...98..477H:
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1995ApJS...98..477H A SEARCH FOR "DWARF" SEYFERT NUCLEI. II. AN OPTICAL SPECTRAL ATLAS OF THE NUCLEI OF NEARBY GALAXIES LUIS C. HO AND ALEXEI V. FILIPPENKO Department of Astronomy, University of California, Berkeley, CA 94720 AND WALLACE L. W. SARGENT Palomar Observatory, 105-24 Caltech, Pasadena, CA 91125 Received 1994 October 11; accepted 1994 November 18 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 {delta} > 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. Subject headings: atlases - galaxies: nuclei - galaxies: Seyfert
Retrieve 503 NED objects in this reference.
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