IRON LINE EMISSION AND VARIABILITY IN THE X-RAY-SPECTRUM OF THE SEYFERT-GALAXY NGC-5548

被引:22
作者
HAYES, MJC
CULHANE, JL
BLISSETT, RJ
BARR, P
BURNELL, SJB
机构
[1] Mullard Space Science Laboratory, Department of Physics and Astronomy, University College London, Holmbury St Mary, Dorking, Surrey, United Kingdom
关键词
Continuum spectrum - Emission features - Emission lines - Line emissions - Seyfert galaxies - X ray spectrum - X-ray emitting;
D O I
10.1093/mnras/193.1.15P
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The MSSL spectrometer on the Ariel V satellite has detected a variable iron emission feature in the X-ray spectrum of NGC 5548. Comparison with other observations indicates that both the slope and intensity of the continuum spectrum are variable. It is suggested that the iron emission is due to fluorescent excitation of the gas in the broad emission-line region surrounding the X-ray emitting nucleus of the galaxy. © Royal Astronomical Society.
引用
收藏
页码:P15 / P20
页数:6
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