2001ApJS..133..269L


Query : 2001ApJS..133..269L

2001ApJS..133..269L - Astrophys. J., Suppl. Ser., 133, 269-295 (2001/April-0)

The Seyfert-starburst connection in x-rays. I. The data.

LEVENSON N.A., WEAVER K.A. and HECKMAN T.M.

Abstract (from CDS):

We analyze X-ray spectra and images of a sample of Seyfert 2 galaxies that unambiguously contain starbursts, based on their optical and UV characteristics. Although all sample members contain active galactic nuclei (AGNs), supermassive black holes or other related processes at the galactic centers alone cannot account for the total X-ray emission in all instances. Eleven of the 12 observed galaxies are significantly resolved with the ROSAT High Resolution Imager, while six of the eight sources observed with the lower resolution Position Sensitive Proportional Counter also appear extended on larger scales. The X-ray emission is extended on physical scales of 10 kpc and greater, which we attribute to starburst-driven outflows and supernova heating of the interstellar medium. Spectrally, a physically motivated composite model of the X-ray emission that includes a heavily absorbed (NH>1023 cm–2) nuclear component (the AGN), power-law-like scattered AGN flux, and a thermal starburst describes this sample well. Half the sample exhibit iron Kα lines, which are typical of AGNs.

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Journal keyword(s): Galaxies: Seyfert - X-Rays: Galaxies

Simbad objects: 14

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Number of rows : 14
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 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
2 Z 524-40 Sy2 02 59 58.5970307633 +36 49 13.808979663   14.89 13.96     ~ 369 1
3 Z 540-64 Sy2 03 15 01.4292441960 +42 02 08.825019072   15.05 14.18 12.54   ~ 202 1
4 Mrk 78 Sy2 07 42 41.7033384240 +65 10 37.447730076   15.57 14.58     ~ 386 3
5 IC 3639 Sy1 12 40 52.8344884344 -36 45 21.057011172   13.01 13.50 11.87 12.7 ~ 262 1
6 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 500 1
7 NGC 5256 PaG 13 38 17.81 +48 16 41.2   14.1 13.42     ~ 449 1
8 Z 271-60 Sy2 13 44 42.1883001099 +55 53 13.596220922   15.68 14.91     ~ 958 3
9 Z 103-14 Sy2 13 56 02.89833 +18 22 18.2982   14.8 14.22     ~ 413 2
10 Z 273-23 Sy2 14 40 38.0960806920 +53 30 15.961505184   16.05 15.03     ~ 341 1
11 NGC 6221 Sy2 16 52 46.329 -59 13 00.99   10.90 13.45 9.68 10.4 ~ 328 0
12 NGC 7130 Sy2 21 48 19.5412287192 -34 57 04.492024884   12.86 13.87 11.57   ~ 483 1
13 NGC 7582 Sy2 23 18 23.60 -42 22 13.3 11.62 10.92 10.62     ~ 978 3
14 NGC 7674 Sy1 23 27 56.6973043968 +08 46 44.253707772 13.84 13.92 13.23 12.64   ~ 738 2

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