An emission-line imaging survey of early-type Seyfert galaxies. I. The Observations

John S. Mulchaey, Andrew S. Wilson, Zlatan Tsvetanov

Research output: Contribution to journalArticle

103 Citations (Scopus)

Abstract

Flux-calibrated images in the lines of [O III] λ5007 and Hα + [N II] λλ6548, 6583 and the nearby continuum are presented for 57 Seyfert galaxies of early morphological type. This sample includes all known Seyfert galaxies with apparent magnitude mv ≤ 14.5 and recessional velocity cz < 7000 krn s-1 in Hubble types E, S0, and S0/a. Images are also presented for an additional 26 galaxies with mv > 14.5, cz > 7000 km s-1, and/or an uncertain classification as a Seyfert galaxy. The ratio of the [O III] λ5007 to the Hα + [Nn] image has been obtained for each galaxy with extended emission to study the spatial variation of the gaseous excitation. Maps of the V - R color distributions over the galaxies are also presented.

Original languageEnglish
Pages (from-to)309-367
Number of pages59
JournalAstrophysical Journal, Supplement Series
Volume102
Issue number2
DOIs
Publication statusPublished - Feb 1996
Externally publishedYes

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Seyfert galaxies
galaxies
spatial variation
continuums
color
excitation
distribution

Keywords

  • Galaxies: photometry
  • Galaxies: Seyfert
  • Galaxies: structure

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

An emission-line imaging survey of early-type Seyfert galaxies. I. The Observations. / Mulchaey, John S.; Wilson, Andrew S.; Tsvetanov, Zlatan.

In: Astrophysical Journal, Supplement Series, Vol. 102, No. 2, 02.1996, p. 309-367.

Research output: Contribution to journalArticle

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