The host galaxies of narrow-line Seyfert 1 galaxies

Evidence for bar-driven fueling

D. M. Crenshaw, S. B. Kraemer, Jack Gabel

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

We present a study of the host galaxy morphologies of narrow- and broad-line Seyfert 1 galaxies (NLS1's and BLS1's) based on broadband optical images from the Hubble Space Telescope archives. We find that large-scale stellar bars, starting at ∼1 kpc from the nucleus, are much more common in NLS1's than BLS1's. Furthermore, the fraction of NLS1 spirals that have bars increases with decreasing full width at half-maximum of the broad component of Hβ. These results suggest a link between the large-scale bars, which can support high fueling rates to the inner kiloparsecs, and the high mass accretion rates associated with the supermassive black holes in NLS1's.

Original languageEnglish
Pages (from-to)1690-1698
Number of pages9
JournalAstronomical Journal
Volume126
Issue number4 1774
DOIs
StatePublished - Oct 2003
Externally publishedYes

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refueling
galaxies
Hubble Space Telescope
accretion
broadband
nuclei
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All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

The host galaxies of narrow-line Seyfert 1 galaxies : Evidence for bar-driven fueling. / Crenshaw, D. M.; Kraemer, S. B.; Gabel, Jack.

In: Astronomical Journal, Vol. 126, No. 4 1774, 10.2003, p. 1690-1698.

Research output: Contribution to journalArticle

Crenshaw, D. M. ; Kraemer, S. B. ; Gabel, Jack. / The host galaxies of narrow-line Seyfert 1 galaxies : Evidence for bar-driven fueling. In: Astronomical Journal. 2003 ; Vol. 126, No. 4 1774. pp. 1690-1698.
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