2008A&A...489...57R


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.21CEST03:47:34

2008A&A...489...57R - Astronomy and Astrophysics, volume 489, 57-68 (2008/10-1)

Physical and kinematical properties of the X-ray absorber in the broad absorption line quasar APM 08279+5255.

RAMIREZ J.M.

Abstract (from CDS):

We have re-analyzed the X-ray spectra of the gravitational lensed high-redshift BAL QSO APM 08279+5255, observed with the XMM-Newton and Chandra observatories. Previous studies (Hasinger et al., 2002ApJ...573L..77H; Chartas et al., 2002ApJ...579..169C) detected unusual, highly-ionized iron absorption features, but differed in their interpretation of these features, regarding the kinematical and ionization structure. We seek one physical model that can be successfully applied to both observations.For the first time we have performed detailed photoionization modeling on the X-ray spectrum of APM 08279+5255.The absorbing gas in APM 08279+5255can be represented by a two-absorbers model with column densities NH(1)≃7x1022cm–2, NH(2)≃6x1022cm–2, and ionization parameters logξ(1)≃1.5 and logξ(2)≃3, with one of them (the high-ionization component) outflowing at v≃0.18(±0.01)c, carrying large amount of gas out of the system. We find that the Chandraspectrum of APM 08279+5255requires the same Fe/O ratio overabundance (previously) indicated by the XMM-Newtonobservation, showing that both absorber components underwent similar chemical evolution and/or have similar origin.

Abstract Copyright:

Journal keyword(s): galaxies: active - X-rays: galaxies - quasars: absorption lines - quasars: individual: APM 08279+5255

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 985 Sy1 02 34 37.882 -08 47 17.02   14.64 14.28 12.9   ~ 348 0
2 QSO J0831+5245 QSO 08 31 41.7095363198 +52 45 17.620340544   19.2   14.5 13.9 ~ 493 1
3 NGC 3783 Sy1 11 39 01.7095761008 -37 44 19.008597647   12.46 13.43 11.33 12.1 ~ 1492 0
4 NGC 4051 Sy1 12 03 09.6098828919 +44 31 52.693714606   11.08 12.92 9.94   ~ 2007 1
5 NGC 4593 Sy1 12 39 39.4435521178 -05 20 39.035028119   13.95 13.15     ~ 959 0
6 ESO 383-35 Sy1 13 35 53.7686909139 -34 17 44.139127597   13.89 13.61 8.9   ~ 1385 0
7 Mrk 279 Sy1 13 53 03.4356451470 +69 18 29.410672989   15.15 14.46     ~ 697 0
8 NGC 5548 Sy1 14 17 59.5401093128 +25 08 12.600227883   14.35 13.73     ~ 2413 0
9 FRL 49 Sy2 18 36 58.2344504326 -59 24 08.288330694   11.1   14.19   ~ 212 0
10 Granat 1915+105 LXB 19 15 11.54938 +10 56 44.7585           ~ 2310 0
11 NAME MR 2251-178 Sy1 22 54 05.8858021308 -17 34 55.403006841   14.99 14.36 15.12   ~ 378 3

    Equat.    Gal    SGal    Ecl

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2020.10.21-03:47:34

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