期刊
ASTROPHYSICAL JOURNAL
卷 596, 期 2, 页码 L163-L166出版社
UNIV CHICAGO PRESS
DOI: 10.1086/379235
关键词
galaxies : individual (NGC 4151); galaxies : Seyfert; instrumentation : interferometers
We report novel, high angular resolution interferometric measurements that imply that the near-infrared nuclear emission in NGC 4151 is unexpectedly compact. We have observed the nucleus of NGC 4151 at 2.2 mum using the two 10 m Keck telescopes as an interferometer and find a marginally resolved source less than or equal to0.1 pc in diameter. Our measurements rule out models in which a majority of the K-band nuclear emission is produced on scales larger than this size. The interpretation of our measurement most consistent with other observations is that the emission mainly originates directly in the central accretion disk. This implies that active galactic nucleus unification models invoking hot, optically thick dust may not be applicable to NGC 4151.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据