Near-IR adaptive optics imaging of nuclear spiral structure in the Seyfert galaxy, NGC3227

Details Near-IR adaptive optics imaging of nuclear spiral structure in the Seyfert galaxy, NGC3227 Near-IR adaptive optics imaging of nuclear spiral structure in the Seyfert galaxy, NGC3227

1999-12-01

arxiv.org/abs/astro-ph/9912032v1

Mon.Not.Roy.Astron.Soc. 319 (2000) 666

Astronomy and Astrophysics

Astrophysics

10 pages, accepted in MNRAS. A link to higher-res postscript version available at ftp://ftp.ociw.edu/pub/schapman/n3v9.ps.gz

Scientific paper

10.1046/j.1365-8711.2000.03867.x

We present high spatial resolution, near-IR images in J, H, K of the nucleus of NGC3227, obtained with the Adaptive Optics bonnette on CFHT. The ~0.15 arcsec (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 spiraling association of knots with a counterpart in an HST F606W image; (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.

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