2008A&A...483..151P


Query : 2008A&A...483..151P

2008A&A...483..151P - Astronomy and Astrophysics, volume 483, 151-160 (2008/5-3)

The broad-band XMM-Newton and INTEGRAL spectra of bright type 1 Seyfert galaxies.

PANESSA F., BASSANI L., DE ROSA A., BIRD A.J., DEAN A.J., FIOCCHI M., MALIZIA A., MOLINA M., UBERTINI P. and WALTER R.

Abstract (from CDS):

The 0.5-150keV broad-band spectra of a sample of nine bright type 1 Seyfert galaxies are analyzed here. These sources have been discovered/detected by INTEGRAL and subsequently observed with XMM-Newton for the first time with high sensitivity below 10keV. The sample, although small, is representative of the population of type 1 AGN which are now being observed above 20keV. The intrinsic continuum has been modeled using three different parameterizations: a power-law model, an exponential cut-off power-law and an exponential cut-off power-law with a Compton reflection component. In each model the presence of intrinsic absorption, a soft component and emission line reprocessing features has also been tested. A simple power-law model is a statistically good description of most of the spectra presented here; an FeK line, fully and/or partial covering absorption and a soft spectral component are detected in the majority of the sample sources. The average photon index (<Γ≥1.7±0.2) is consistent, within errors, with the canonical spectral slope often observed in AGN although the photon index distribution peaks in our case at flat Γ (∼1.5) values. For four sources, we find a significantly improved fit when the power-law is exponentially cut-off at an energy which is constrained to be below ∼150keV. The Compton reflection parameter could be estimated in only two objects of the sample and in both cases is found to be R>1.

Abstract Copyright:

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

Simbad objects: 23

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Number of rows : 23
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 LB 1727 Sy1 04 26 00.7188165240 -57 12 01.769902992 13.68 14.58 14.37 14.8   ~ 262 0
2 LEDA 168563 Sy1 04 52 04.7723618832 +49 32 44.750794344     17.1     ~ 65 0
3 IC 450 Sy1 06 52 12.3346265592 +74 25 37.121227716   15.16 14.19     ~ 541 1
4 2MASS J07594181-3843560 Sy1 07 59 41.8249527816 -38 43 56.041748544           ~ 57 0
5 ESO 209-12 Sy1 08 01 57.9725354376 -49 46 42.395213028   15.31 15.3 13.78   ~ 73 0
6 FRL 1146 Sy1 08 38 30.7755130968 -35 59 33.333870984   16.1       ~ 78 0
7 NGC 3227 GiP 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1643 1
8 NGC 3516 Sy1 11 06 47.4632200800 +72 34 07.298374656   13.12 12.40     ~ 1496 0
9 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2112 1
10 NGC 4593 Sy1 12 39 39.4435107024 -05 20 39.034988448   13.95 13.15     ~ 1042 0
11 ESO 323-77 Sy2 13 06 26.1214861728 -40 24 52.595604396   13.58 13.42 12.01   ~ 224 0
12 ESO 383-35 Sy1 13 35 53.7691256160 -34 17 44.160716796   13.89 13.61 8.9   ~ 1451 0
13 2MASS J13473599-6037037 Sy1 13 47 36.00 -60 37 03.8         16.77 ~ 90 0
14 NAME OKM2018 SWIFT J1419.0-1323 Sy1 14 19 03.8170514760 -13 10 44.785212600   16.46 16.10 16.50   ~ 229 0
15 ESO 511-30 Sy1 14 19 22.4047231584 -26 38 41.134476084   13.32 14.9 12.27 12.7 ~ 138 0
16 Mrk 841 Sy1 15 04 01.1935384104 +10 26 15.780409692   14.50 14.27     ~ 621 0
17 2MASX J16115141-6037549 Sy1 16 11 51.3943954128 -60 37 55.030263996   14.7       ~ 68 0
18 LEDA 5061277 Sy1 16 48 15.2500861368 -30 35 04.107778980     15.8     ~ 63 0
19 2MASS J16560561-5203408 Sy1 16 56 05.6062967232 -52 03 40.854141144           ~ 54 0
20 2MASS J17415525-1211566 Sy1 17 41 55.2532659480 -12 11 56.583631680   17.36 16.40 14.9   ~ 60 0
21 2MASXI J1802473-145454 Sy1 18 02 47.3 -14 54 55   19.3       ~ 61 2
22 2MASX J18560128+1538059 Sy1 18 56 01.282 +15 38 05.90     18.4 16.6   ~ 52 0
23 NGC 6814 Sy1 19 42 40.5862186152 -10 19 25.108718844   15.33 14.21 11.7 11.3 ~ 776 0

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2023.02.01-20:25:41

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