Star-forming tori in Seyfert nuclei

Roberto Terlevich
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引用次数: 3

Abstract

In the simple unified model for Seyfert nuclei, type 2 Seyferts are those where direct view of the central source is blocked by a dusty molecular torus. This simple model is able to explain many observed properties of Seyfert nuclei but fails to explain the UV excess observed in the continuum of many type 2 Seyferts, the relatively low level of continuum polarization, and the undiluted near IR stellar absorptions. The simplest solution is to postulate a continuum source on top of the scattered nuclear one. I discuss here some of the implications of having young stars in the torus providing the additional continuum.

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塞弗特核中的恒星形成环面
在塞弗特核的简单统一模型中,2型塞弗特核是那些中心源的直接观测被尘埃分子环面阻挡的核。这个简单的模型能够解释许多观测到的塞弗特核的性质,但不能解释在许多2型塞弗特连续体中观测到的紫外线过剩,相对较低的连续体极化水平,以及未稀释的近红外恒星吸收。最简单的解决办法是在分散的核源之上假定一个连续源。我在这里讨论在环面中有年轻的恒星提供额外的连续体的一些含义。
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