Ionized iron Kα lines in AGN X-ray spectra

被引：52
作者：
Bianchi, S [1 ]
Matt, G [1 ]
机构：
[1] Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy
来源：
ASTRONOMY & ASTROPHYSICS | 2002年 / 387卷 / 01期
关键词：
line : formation; galaxies : individual : NGC 5506; galaxies : Seyfert; X-rays : galaxies;
D O I：
10.1051/0004-6361:20020372
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Equivalent Widths (EW) of the He- and H-like iron lines produced in photoionized, circumnuclear matter of AGN are calculated with respect to both the reflected and the total continua. We found that the EWs with respect to the total continuum may be as large as a few tens of eV, making them observable in bright Seyfert 1s by instruments on board Chandra and XMM-Newton. We apply our calculations to the XMM-Newton spectrum of NGC 5506 and found a good agreement with the data at the expense of a modest iron overabundance.
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页码：76 / 81
页数：6
相关论文
共 24 条
[1]   The circumnuclear X-ray reflectors in NGC 1068 and the Circinus galaxy [J].
Bianchi, S ;
Matt, G ;
Iwasawa, K .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 322 (03) :669-680
[2]  
Chandrasekhar S., 1950, RAD TRANSFER
[3]  
FERLAND G, 2000, ADASS, V9, P32
[4]   XMM-Newton observation of the Seyfert 1 galaxy Fairall 9 [J].
Gondoin, P ;
Lumb, D ;
Siddiqui, H ;
Guainazzi, M ;
Schartel, N .
ASTRONOMY & ASTROPHYSICS, 2001, 373 (03) :805-815
[5]   Soft X-ray spectroscopy of Compton-thick Seyfert 2 galaxies with BeppoSAX [J].
Guainazzi, M ;
Matt, G ;
Antonelli, LA ;
Bassani, L ;
Fabian, AC ;
Maiolino, R ;
Marconi, A ;
Fiore, F ;
Iwasawa, K ;
Piro, L .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 310 (01) :10-20
[6]   High-resolution X-ray spectroscopy and modeling of the absorbing and emitting outflow in NGC 3783 [J].
Kaspi, S ;
Brandt, WN ;
Netzer, H ;
George, IM ;
Chartas, G ;
Behar, E ;
Sambruna, RM ;
Garmire, GP ;
Nousek, JA .
ASTROPHYSICAL JOURNAL, 2001, 554 (01) :216-232
[7]   FE K FEATURES AS PROBES OF THE NUCLEAR REFLECTION REGION IN SEYFERT-GALAXIES [J].
KROLIK, JH ;
KALLMAN, TR .
ASTROPHYSICAL JOURNAL, 1987, 320 (01) :L5-L8
[8]   RXTE observations of the Seyfert galaxy NGC 5506:: evidence for reflection from disc and torus [J].
Lamer, G ;
Uttley, P ;
McHardy, IM .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 319 (03) :949-955
[9]   The strength and width of FeKα lines in Seyferts and their correlations with the X-ray slope [J].
Lubinski, P ;
Zdziarski, AA .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 323 (02) :L37-L42
[10]   The iron K alpha line complex in Compton-thick Seyfert 2 galaxies [J].
Matt, G ;
Brandt, WN ;
Fabian, AC .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1996, 280 (03) :823-834
123