2006A&A...453..829F


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.26CET18:09:03

2006A&A...453..829F - Astronomy and Astrophysics, volume 453, 829-838 (2006/7-3)

XMM-Newton observations of a sample of γ-ray loud active galactic nuclei.

FOSCHINI L., GHISELLINI G., RAITERI C.M., TAVECCHIO F., VILLATA M., MARASCHI L., PIAN E., TAGLIAFERRI G., DI COCCO G. and MALAGUTI G.

Abstract (from CDS):

To understand the nature of γ-ray loud active galactic nuclei (AGN) and the mechanisms for the generation of high-energy γ-rays. We performed a homogeneous and systematic analysis of simultaneous X-ray and optical/UV properties of a group of 15 γ-ray loud AGN, using observations performed with XMM-Newton. The sample is composed of 13 blazars (6 BL Lac and 7 Flat-Spectrum Radio Quasar) and 2 radio galaxies that are associated with detections at energies >100MeV. The data for 7 of them are analyzed here for the first time, including the first X-ray observation of PKS 1406-706. The spectral characteristics of the sources in the present sample were compared with those in previous catalogs of blazars and other AGN, to search for difference or long term changes. All the selected sources appear to follow the classic ``blazar sequence'' and the spectral energy distributions (SED) built with the present X-ray and optical/UV data and completed with historical data, confirm the findings of previous studies on this type of source. Some sources display interesting features: four of them, namely AO 0235+164, PKS 1127-145, S5 0836+710 and PKS 1830-211 show the presence of an intervening absorption system along the line of sight, but only the last is known to be gravitationally lensed. AO 0235+164 was detected during an outburst and its SED shows a clear shift of the synchrotron peak. 3C 273 shows a change in state with respect to the previous BeppoSAX observations that can be interpreted as an increase of the Seyfert-like component and a corresponding decline of the jet emission. This is consistent with the monitoring at radio wavelengths performed during the same period. PKS 1406-706 is detected with a flux higher than in the past, but with a corresponding low optical flux. Although it is classified as FSRQ, the SED can be modelled with a simple synchrotron self-Compton model.

Abstract Copyright:

Journal keyword(s): BL Lacertae objects: general - quasars: general - X-rays: galaxies

CDS comments: Abstract: PKS 1406-706 is a misprint for PKS 1406-076.

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 - 2021
#notes
1 PSR J0218+42 Psr 02 18 06.3604 +42 32 17.365           ~ 302 2
2 3C 66A BLL 02 22 39.6111630878 +43 02 07.797284539   15.71 15.21 14.5   ~ 807 1
3 QSO J0225+1846 QSO 02 25 04.6688516 +18 46 48.766765   20.0 20.0 19.09   ~ 79 1
4 QSO B0235+1624 BLL 02 38 38.93010 +16 36 59.2746   16.46 15.50 15.92   ~ 1412 2
5 QSO B0521-365 BLL 05 22 57.9839686440 -36 27 30.847737786   15.26 14.62 14.48   ~ 738 2
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15195 1
7 PMN J0529-3555 Rad 05 29 37 -35 55.4       19.20   ~ 7 0
8 8C 0716+714 BLL 07 21 53.4484901266 +71 20 36.362058601   15.5 14.17 14.27   ~ 1155 1
9 4C 71.07 QSO 08 41 24.36526906 +70 53 42.1730054     16.5 16.8   ~ 709 1
10 2A 1058-226 BLL 11 03 37.6150843895 -23 29 31.202114088   17.00 16.55 16.61   ~ 325 2
11 Mrk 421 BLL 11 04 27.3139210166 +38 12 31.798324828   13.50 12.90 8.31   ~ 2426 1
12 QSO J1130-1449 QSO 11 30 07.05259287 -14 49 27.3881476   17.17 16.90 16 16.97 ~ 643 1
13 7C 1219+2830 BLL 12 21 31.6902446544 +28 13 58.500383827   16.81 16.11 14.24   ~ 793 1
14 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5404 1
15 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 4075 3
16 QSO B1334-127 QSO 13 37 39.78277768 -12 57 24.6932620   18.5 18.5 16.22   ~ 439 1
17 QSO B1406-076 QSO 14 08 56.48120036 -07 52 26.6664200   20.3 18.4     ~ 275 1
18 NGC 6251 Sy2 16 32 31.96990024 +82 32 16.3999540 15.24 14.66 12.89 7.62   ~ 680 0
19 4C 39.49 BLL 16 53 52.21668494 +39 45 36.6089458 14.09 14.15 13.29 8.26   ~ 1954 2
20 QSO B1830-211 Bla 18 33 39.92 -21 03 39.9     18.70 21   ~ 567 1
21 QSO B2005-489 BLL 20 09 25.3910622923 -48 49 53.722146927   15.75 12.81 11.41   ~ 521 2
22 QSO B2155-304 BLL 21 58 52.0651817803 -30 13 32.120657891   13.36 13.09 12.62   ~ 1591 1
23 QSO B2356-309 BLL 23 59 07.9032684889 -30 37 40.667900741   18.414 16.44 16.795   ~ 254 1

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2021.02.26-18:09:03

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