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 language | English |
|---|---|
| Pages (from-to) | 1690-1698 |
| Number of pages | 9 |
| Journal | Astronomical Journal |
| Volume | 126 |
| Issue number | 4 1774 |
| DOIs | |
| State | Published - Oct 2003 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Space and Planetary Science
- Astronomy and Astrophysics
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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 journal › Article
}
TY - JOUR
T1 - The host galaxies of narrow-line Seyfert 1 galaxies
T2 - Evidence for bar-driven fueling
AU - Crenshaw, D. M.
AU - Kraemer, S. B.
AU - Gabel, Jack
PY - 2003/10
Y1 - 2003/10
N2 - 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.
AB - 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.
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U2 - 10.1086/377625
DO - 10.1086/377625
M3 - Article
VL - 126
SP - 1690
EP - 1698
JO - Astronomical Journal
JF - Astronomical Journal
SN - 0004-6256
IS - 4 1774
ER -