2014ApJ...787...61L


Query : 2014ApJ...787...61L

2014ApJ...787...61L - Astrophys. J., 787, 61 (2014/May-3)

Delving into X-ray obscuration of type 2 AGN, near and far.

LAMASSA S.M., YAQOOB T., PTAK A.F., JIA J., HECKMAN T.M., GANDHI P. and URRY C.M.

Abstract (from CDS):

Using self-consistent, physically motivated models, we investigate the X-ray obscuration in 19 Type 2 [O III] 5007 Å selected active galactic nuclei (AGNs), 9 of which are local Seyfert 2 galaxies and 10 of which are Type 2 quasar candidates. We derive reliable line-of-sight and global column densities for these objects, which is the first time this has been reported for an AGN sample; four AGNs have significantly different global and line-of-sight column densities. Five sources are heavily obscured to Compton-thick. We comment on interesting sources revealed by our spectral modeling, including a candidate "naked" Sy2. After correcting for absorption, we find that the ratio of the rest-frame, 2-10 keV luminosity (L_2-10 keV, in_) to L_[O III]_ is 1.54±0.49 dex which is essentially identical to the mean Type 1 AGN value. The Fe Kα luminosity is significantly correlated with L_[O III]_but with substantial scatter. Finally, we do not find a trend between L_2-10 keV, in_and global or line-of-sight column density, between column density and redshift, between column density and scattering fraction, or between scattering fraction and redshift.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: Seyfert - X-rays: general

Simbad objects: 21

goto Full paper

goto View the references in ADS

Number of rows : 21
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 Mrk 609 Sy2 03 25 25.3590639624 -06 08 37.947546528   14.72 14.12 10.9   ~ 212 0
2 IC 486 Sy2 08 00 20.9844002160 +26 36 48.656447136   17.05 16.36     ~ 164 0
3 IRAS F08216+3009 Sy2 08 24 43.2850671960 +29 59 23.512801812   16.32 15.61     ~ 63 0
4 4C 55.16 Bla 08 34 54.90398776 +55 34 21.0703409   20.75 19.45 17.180   ~ 297 2
5 2MASS J08394599+3843191 Sy2 08 39 46.0086804921 +38 43 18.904311315   20.97 20.28     ~ 13 0
6 [OKM2018] SWIFT J0900.9+2095 Sy2 09 00 36.8611579968 +20 53 40.432948980   20.22 19.50     ~ 33 0
7 IRAS 09104+4109 Sy2 09 13 45.4951283928 +40 56 28.215343572   19.69 19.21     ~ 260 1
8 3C 223.0 Sy2 09 39 52.7594046216 +35 53 58.922078496   19.51 18.60     ~ 279 0
9 4C 36.16 Rad 09 39 55.08 +35 52 13.4           ~ 271 1
10 Z 64-17 Sy2 09 59 14.7746709912 +12 59 16.364182488   15.6       ~ 33 0
11 MCG+10-15-104 Sy2 10 34 08.54424 +60 01 52.1004   15.71 14.65     ~ 271 1
12 LEDA 2153657 Sy2 10 34 56.3806247592 +39 39 40.979295288   19.21 18.38     ~ 19 0
13 MCG+10-17-021 Sy2 11 35 49.0880980152 +56 57 08.245051272   16.79 15.85     ~ 79 1
14 Z 268-83 Sy2 11 47 21.6206300544 +52 26 58.526002140   15.0       ~ 71 0
15 2MASX J11570483+5249036 Sy2 11 57 04.8394919952 +52 49 03.679043664   15.33 14.79     ~ 35 0
16 2XMM J122656.4+013124 Sy2 12 26 56.4794393928 +01 31 24.288763800   21.37 20.72     ~ 40 0
17 LEDA 1365424 Sy2 12 38 43.4279753712 +09 27 36.604980360   18.10 17.41     ~ 58 0
18 Z 218-7 Sy2 13 23 48.4513699680 +43 18 04.312035900   15.7       ~ 55 0
19 PKS 1345+12 Sy2 13 47 33.36161873 +12 17 24.2398927   19.28 18.44 15.718   ~ 652 2
20 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
21 2XMM J164131.6+385841 Sy2 16 41 31.723 +38 58 40.92   20.96 20.40     ~ 27 0

To bookmark this query, right click on this link: simbad:objects in 2014ApJ...787...61L and select 'bookmark this link' or equivalent in the popup menu