A luminous 3 kiloparsec infrared disk in NGC 1068
A luminous 3 kiloparsec infrared disk in NGC 1068
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NGC 1068 中的发光 3 千秒差距红外圆盘
DOI：
10.1086/162220
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
D. Harper
中科院分区：
文献类型：
--
作者：
C. Telesco;E. Becklin;C. Wynn;D. Harper
展示了 Seyfert 星系 NGC 1068 的 10 微米地图以及其远红外角度范围的机载测量结果。结果表明，红外发射主要源自两个物理上不同的区域； 3 x 10 到第 11 太阳光度的总红外光度中大约一半与 Seyfert 核相关，一半与围绕它的 3 kpc（35 角秒）直径圆盘相关。有人认为，红外发射的圆盘部分源自长时间但严重模糊的恒星形成爆发，这类似于在一些非塞弗特星系中看到的恒星形成爆发。这种高亮度圆盘的特点更多地在于它的大尺寸而不是它的高表面亮度。根据目前的证据，无法得出 NGC 1068 盘面高光度与其 Seyfert 活动有因果关系的结论。
A 10 micron map of the Seyfert galaxy NGC 1068 and airborne measurements of its angular extent in the far-infrared are presented. It is shown that the infrared emission originates primarily from two physically distinct regions; approximately half of the total infrared luminosity of 3 x 10 to the 11th solar luminosities is associated with the Seyfert nucleus and half with a 3 kpc (35 arc sec) diameter disk surrounding it. It is argued that the disk component of infrared emission originates from an extended but heavily obscured burst of star formation which resembles those seen in some non-Seyfert galaxies. This high-luminosity disk is distinguished more by its large size than by its high surface brightness. On the basis of current evidence it cannot be concluded that the high disk luminosity in NGC 1068 is causally related to its Seyfert activity.