Dust lanes causing structure in the extended narrow-line region of early-type seyfert galaxies

A. C. Quillen, A. Alonso-Herrero, M. J. Rieke, Colleen McDonald, Heino Falcke, G. H. Rieke

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

We construct near-infrared to visible broadband NICMOS/WFPC color maps for four early-type Seyfert galaxies with S-shaped or one-sided ionization cones. We find that dust lanes are near or connected to many of the features seen in the [O III] and Hα + [N II] line emission maps. This suggests that much of the structure of line emission in these ionization cones is determined by the distribution of ambient dense galactic gas. Spiral arms, dust lanes caused by bars, or gaseous warps provide dense gas, which when illuminated by a conical beam of ultraviolet photons can result in the complicated line emission morphologies observed.

Original languageEnglish (US)
Pages (from-to)685-690
Number of pages6
JournalAstrophysical Journal
Volume525
Issue number2 PART 1
StatePublished - Nov 10 1999

Keywords

  • Galaxies: ISM
  • Galaxies: active
  • Galaxies: seyfert
  • Galaxies: structure
  • Infrared: galaxies

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'Dust lanes causing structure in the extended narrow-line region of early-type seyfert galaxies'. Together they form a unique fingerprint.

Cite this