2000A&A...362...75P


Query : 2000A&A...362...75P

2000A&A...362...75P - Astronomy and Astrophysics, volume 362, 75-96 (2000/10-1)

The far-infrared emission of radio loud and radio quiet quasars.

POLLETTA M., COURVOISIER T.J.-L., HOOPER E.J. and WILKES B.J.

Abstract (from CDS):

Continuum observations at radio, millimetre, infrared and soft X-ray energies are presented for a sample of 22 quasars, consisting of flat and steep spectrum radio loud, radio intermediate and radio quiet objects. The primary observational distinctions, among the different kinds of quasars in the radio and IR energy domains are studied using large observational datasets provided by ISOPHOT on board the Infrared Space Observatory, by the IRAM interferometer, by the sub-millimetre array SCUBA on JCMT, and by the European Southern Observatory (ESO) facilities IRAC1 on the 2.2 m telescope and SEST. The spectral energy distributions of all quasars from radio to IR energies are analyzed and modeled with non-thermal and thermal spectral components. The dominant mechanism emitting in the far/mid-IR is thermal dust emission in all quasars, with the exception of flat spectrum radio loud quasars for which the presence of thermal IR emission remains rather uncertain, since it is difficult to separate it from the bright non-thermal component. The dust is predominantly heated by the optical/ultraviolet radiation emitted from the external components of the AGN. A starburst contributes to the IR emission at different levels, but always less than the AGN (≤27%). The distribution of temperatures, sizes, masses, and luminosities of the emitting dust are independent of the quasar type.

Abstract Copyright:

Journal keyword(s): galaxies: quasars: general - infrared: galaxies - radio continuum: galaxies

Simbad objects: 23

goto View the references in ADS

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 - 2022
#notes
1 2E 437 Sy1 01 36 24.4208152464 +20 57 27.522990972   18.15 18.10     ~ 351 2
2 ICRF J013738.3-243053 Sy1 01 37 38.3462810880 -24 30 53.883832500   17.47 17.33 16.57   ~ 185 1
3 QSO B0407-65 QSO 04 08 20.37884 -65 45 09.0806     18.0     ~ 133 1
4 QSO J0635-7516 QSO 06 35 46.5079301472 -75 16 16.816418256   15.96 15.75 15.82   ~ 544 1
5 4C 13.41 Sy1 10 07 26.0965408440 +12 48 56.184940764   15.81 15.68     ~ 387 2
6 3C 246 Sy1 10 51 29.9161672920 -09 18 10.191977064   16.85 16.79 16.5   ~ 181 1
7 2MASX J10523275+6125211 Sy1 10 52 32.7475006344 +61 25 20.963248212   17.16 17.06     ~ 113 1
8 2E 2389 Sy1 11 04 13.8611496720 +76 58 58.194549084   15.70 15.72 15.40   ~ 521 1
9 QSO B1103-006 Sy1 11 06 31.7743074480 -00 52 52.380450264   16.39 16.46     ~ 212 1
10 PG 1216+069 Sy1 12 19 20.9318278680 +06 38 38.467059252   15.68 15.65     ~ 267 0
11 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 5555 1
12 PB 4142 Sy1 13 54 35.6874184872 +18 05 17.504491992   16.84 16.68     ~ 209 0
13 2MASS J13563279+2103523 Sy1 13 56 32.7981405816 +21 03 52.378155576   15.85 17.07     ~ 91 0
14 LEDA 52314 Sy1 14 38 16.1630434488 -06 58 20.662907124   16.13 16.01 15.5   ~ 115 0
15 LEDA 54782 Sy1 15 21 14.2570766112 +22 27 43.827693336   16.09 16.09     ~ 120 0
16 QSO B1544+4855 Sy1 15 45 30.2358624864 +48 46 08.976390420   16.92 16.73     ~ 219 0
17 QSO J1719+4804 QSO 17 19 38.2496454120 +48 04 12.247659408   15.33 14.60 14.25   ~ 176 1
18 ICRF J172320.7+341757 Sy1 17 23 20.7958610952 +34 17 57.967381860   15.58 15.46     ~ 291 1
19 QSO B1946+770 QSO 19 44 54.8532392016 +77 05 52.673448048     15.8     ~ 145 0
20 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2237 2
21 4C 31.63 BLL 22 03 14.9756830008 +31 45 38.269473228   15.85 15.58 14.33   ~ 474 1
22 Mrk 304 Sy1 22 17 12.2637639888 +14 14 20.917852980   15.02 14.66     ~ 334 0
23 4C 09.72 BLL 23 11 17.7546073272 +10 08 15.756513972   16.15 16.00     ~ 185 1

To bookmark this query, right click on this link: simbad:objects in 2000A&A...362...75P and select 'bookmark this link' or equivalent in the popup menu


2022.05.20-01:05:32

© Université de Strasbourg/CNRS

    • Contact