2000MNRAS.319..666C


Query : 2000MNRAS.319..666C

2000MNRAS.319..666C - Mon. Not. R. Astron. Soc., 319, 666-676 (2000/December-2)

Near-infrared adaptive optics imaging of nuclear spiral structure in the Seyfert galaxy NGC 3227.

CHAPMAN S.C., MORRIS S.L. and WALKER G.A.H.

Abstract (from CDS):

We present high spatial resolution, near-infrared images in J, H and K of the nucleus of NGC 3227, obtained with the Adaptive Optics Bonnette on the Canada-France-Hawaii Telescope. The ∼0.15arcsec (17pc) resolution allows structures to be probed in the core region. Dust obscuration becomes significantly less pronounced at longer wavelengths, revealing the true geometry of the core region. We are able to identify two main features in our maps: (i) a spiralling association of knots with a counterpart in a Hubble Space Telescope F606W image; and (ii) a smaller-scale annulus, orthogonal to the spiral of knots. These features may provide a means to transport material inwards to fuel the active nucleus.

Abstract Copyright: 2000, Royal Astronomical Society

Journal keyword(s): techniques: image processing - galaxies: active - galaxies: individual: NGC 3227 - galaxies: Seyfert - galaxies: starburst - infrared: galaxies

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 NGC 3226 rG 10 23 27.0064075320 +19 53 54.674937420   14.32 13.33     ~ 440 1
2 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1807 2
3 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0

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