학술논문

Mid-infrared fine-structure line ratios in active galactic nuclei observed with the spitzer IRS: Evidence for extinction by the torus
Document Type
Article
Source
In: Astrophysical Journal. (Astrophysical Journal, 20 July 2007, 664(1 I):71-87)
Subject
Language
English
ISSN
15384357
0004637X