학술논문
The disappearing broad absorption lines and variable emission lines in NGC 3516
Document Type
Author
Source
ASTROPHYSICAL JOURNAL. 470(1):378-393
Subject
Language
English
ISSN
0004-637X
Abstract
The Seyfert 1 galaxy NGC 3516 was monitored during 1993 February 16-May 13 by IUE every 4 days for the first month, and then every 2 days for 2 months giving a total of 40 observations. This paper gives the initial results from this campaign, (1) The broa