2002ApJ...581L..71D

Query : 2002ApJ...581L..71D

2002ApJ...581L..71D - Astrophys. J., 581, L71-L75 (2002/December-3)

The correlation between the X-ray spectral slope and the Fe Kα line energy in radio-quiet active galactic nuclei.

DEWANGAN G.C.

Abstract (from CDS):

A significant correlation between the Fe Kα line energy and the X-ray spectral slope has been discovered among radio-quiet active galactic nuclei. The ionization stage of the bulk of the Fe Kα-emitting material is not the same in all active galactic nuclei and is related to the shape of the X-ray continua. Active galactic nuclei with a steep X-ray spectrum tend to have a fluorescence Fe Kα line from highly ionized material. In the narrow-line Seyfert 1 galaxies with a steeper X-ray spectrum (ΓX≳2.1), the Fe Kα line originates from highly ionized material. In the Seyfert 1 galaxies and quasars with a flatter X-ray spectrum (ΓX≲2.1), the bulk of the Fe Kα emission arises from near-neutral or weakly ionized material. The correlation is an important observational characteristic related to the accretion process in radio-quiet active galactic nuclei and is driven by a fundamental physical parameter that is likely to be the accretion rate relative to the Eddington rate.

Abstract Copyright: ∼

Journal keyword(s): Accretion, Accretion Disks - Galaxies: Active - X-Rays: Galaxies

Simbad objects: 32

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Number of rows : 32
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 Mrk 335 Sy1 00 06 19.5372339024 +20 12 10.617404076   14.19 13.85     ~ 1255 0
2 Mrk 1502 Sy1 00 53 34.9331107632 +12 41 35.929269132   14.41 14.03     ~ 1169 1
3 [OKM2018] SWIFT J0056.9+1472 Sy1 00 57 09.9306975096 +14 46 10.142054004   16.56 16.29     ~ 165 0
4 Ton S 180 Sy1 00 57 20.2040816832 -22 22 56.575212564   14.60 14.34 15.23   ~ 301 0
5 ESO 113-45 Sy1 01 23 45.7631533440 -58 48 20.808928944   14.08 13.83 13.34   ~ 882 0
6 Mrk 359 Sy1 01 27 32.5217343720 +19 10 43.839069600   14.89 14.22     ~ 311 0
7 RX J0148.5-2753 Sy1 01 48 30 -27 53.3           ~ 4 0
8 LEDA 2149945 Sy1 09 50 48.3803143440 +39 26 50.467298496   16.83 16.73     ~ 199 0
9 HE 1029-1401 Sy1 10 31 54.3173785536 -14 16 51.378102372   14.08 13.86     ~ 132 0
10 NGC 3516 Sy1 11 06 47.4632200800 +72 34 07.298374656   13.12 12.40     ~ 1545 0
11 LEDA 34449 Sy1 11 17 06.3989076960 +44 13 33.324039480   16.32 16.12     ~ 248 0
12 LEDA 34570 Sy1 11 18 30.2894794680 +40 25 54.068810952   16.34 16.21     ~ 228 0
13 Ton 1388 Sy1 11 19 08.6786220240 +21 19 17.987085948   14.91 14.80     ~ 468 0
14 NGC 3783 Sy1 11 39 01.7096819040 -37 44 19.009642992   12.46 13.43 11.33 12.1 ~ 1651 0
15 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2167 1
16 PB 3894 Sy1 12 14 17.6738687784 +14 03 13.182723144   14.46 14.19     ~ 823 0
17 NGC 4253 Sy1 12 18 26.5163572920 +29 48 46.531535472   14.34 13.57     ~ 1042 1
18 Mrk 205 Sy1 12 21 44.0724099888 +75 18 38.241006228   15.64 15.24 14.7   ~ 477 0
19 LBQS 1244+0238 Sy1 12 46 35.2527826632 +02 22 08.782546368   16.57 16.37     ~ 298 0
20 LEDA 1118053 Sy1 13 23 40.3136037360 -01 27 49.192506576   17.94 17.49 16.15   ~ 26 0
21 ESO 383-35 Sy1 13 35 53.7691256160 -34 17 44.160716796   13.89 13.61 8.9   ~ 1489 0
22 Mrk 279 Sy1 13 53 03.4348964112 +69 18 29.410910460   15.15 14.46     ~ 762 0
23 PB 4142 Sy1 13 54 35.6874184872 +18 05 17.504491992   16.84 16.68     ~ 225 0
24 [OKM2018] SWIFT J1419.0-1323 Sy1 14 19 03.8170514760 -13 10 44.785212600   16.46 16.10 16.50   ~ 236 0
25 Mrk 478 Sy1 14 42 07.4714418744 +35 26 22.938625500   14.91 14.58     ~ 534 0
26 Mrk 841 Sy1 15 04 01.1935384104 +10 26 15.780409692   14.50 14.27     ~ 651 0
27 Mrk 290 Sy1 15 35 52.4031021552 +57 54 09.515660508   15.55 15.27     ~ 531 0
28 ClG 1821+64 ClG 18 21 56.7276 +64 20 55.841           ~ 504 1
29 7C 1821+6419 Sy1 18 21 57.2130271440 +64 20 36.221312076   14.23 14.24     ~ 602 1
30 UGC 12163 Sy1 22 42 39.3363009144 +29 43 31.302092640   14.86 14.16     ~ 699 1
31 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2100 3
32 Mrk 926 Sy1 23 04 43.4776098480 -08 41 08.629476864   16.20 15.91 9.4   ~ 457 0

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