2009A&A...498...61T


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.04CET10:47:14

2009A&A...498...61T - Astronomy and Astrophysics, volume 498, 61-66 (2009/4-4)

3C 33: another case of photoionized soft X-ray emission in radio galaxies.

TORRESI E., GRANDI P., GUAINAZZI M., PALUMBO G.G.C., PONTI G. and BIANCHI S.

Abstract (from CDS):

We investigate the X-ray spectral properties of 3C 33 by analyzing all the observations available in the Chandra and XMM-Newton archives. In this paper we present a complete X-ray analysis of the nuclear emission of this narrow-line radio galaxy. The broad-band spectrum of 3C 33 is complex. Its hard part resembles that of Seyfert 2 galaxies, which have a heavily obscured nuclear continuum (NH∼1023cm–2) and a prominent Fe Kα line. This represents the nuclear radiation observed directly in transmission through a cold circumnuclear gas. On the other hand an unabsorbed continuum plus emission lines seem to reproduce the soft part of the spectrum (0.5-2keV) well, suggesting that the jet does not contribute significantly to the X-ray emission. We discuss the possible collisional or photoionized origin of the gas that emits the soft X-ray lines. Our results, supported by those from optical spectroscopy, favor the photoionization scenario.

Abstract Copyright:

Journal keyword(s): galaxies: active - X-rays: galaxies - X-rays: individual: 3C 33

Simbad objects: 5

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Number of rows : 5

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 2C 94 Sy2 01 08 52.8701245540 +13 20 14.257796477   15.19       ~ 445 2
2 M 77 GiP 02 42 40.771 -00 00 47.84 9.70 9.61 8.87 10.1 9.9 ~ 4178 2
3 Mrk 3 Sy2 06 15 36.458 +71 02 15.24 14.21 14.03 12.97     ~ 861 3
4 7C 095855.89+290131.00 Sy1 10 01 49.5226070599 +28 47 08.913353395   18.21 17.27     ~ 403 1
5 LEDA 68751 Sy1 22 23 49.7 -02 06 13   16.93 15.77 16.02   ~ 442 2

    Equat.    Gal    SGal    Ecl

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2021.03.04-10:47:14

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