2000A&A...362...69V


Query : 2000A&A...362...69V

2000A&A...362...69V - Astronomy and Astrophysics, volume 36269-74 (2000/10-1)

On the peculiar X-ray properties of the bright nearby radio-quiet quasar PDS 456.

VIGNALI C., COMASTRI A., NICASTRO F., MATT G., FIORE F. and PALUMBO G.G.C.

Abstract (from CDS):

BeppoSAX and ASCA observations of the nearby (z=0.184), high-luminosity, radio-quiet quasar PDS 456 are presented. The X-ray spectrum is characterized by a prominent ionized edge at 8-9keV (originally discovered by RXTE, Reeves et al., 20000MNRAS.312L..17R) and by a soft excess below 1.5keV. The lack of any significant iron Kα emission line suggests for the edge an origin from line-of-sight material rather than from reflection from a highly ionized accretion disc. The hard X-ray continuum is indeed well modelled by transmission through a highly-ionized medium with a large column density (NHwarm∼4.5x1024cm–2) plus an additional cold absorber with a lower column density (NHcold∼2.7x1022cm–2).

Abstract Copyright: ∼

Journal keyword(s): galaxies: nuclei - galaxies: quasars: individual: PDS 456 - X-rays: galaxies

Simbad objects: 1

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Number of rows : 1
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 QSO B1725-142 QSO 17 28 19.7893499760 -14 15 55.854918288   14.69 14.03 13.7   ~ 362 0

Query : 2000A&A...362...69V

Basic data :
QSO B1725-142 -- Quasar
Other object types:
otypes_help
QSO (2010A&A,QSO,...), X (RX,1RXS,...), AGN (2012MNRAS), Sy1 (2012MNRAS), G (6dFGS), * (Gaia), Rad (NVSS), UV (UVQS), IR (IRAS)
ICRS coord. (ep=J2000) :
17 28 19.7893499760 -14 15 55.854918288 (Optical) [ 0.0181 0.0139 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) :
17 25 29.2209557175 -14 13 31.621904342 [ 0.0181 0.0139 90 ]
Gal coord. (ep=J2000) :
010.3921641157749 +11.1635704912558 [ 0.0181 0.0139 90 ]
Proper motions mas/yr :
0.028 -0.036 [0.023 0.015 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz :
V(km/s) 50158 [~] / z(emission) 0.184 [~] / cz 55162 [~]
   (Opt) D 2016ApJ...818..113N
Fluxes (4) :
B 14.69 [~] D 2010A&A...518A..10V
V 14.03 [~] D 2010A&A...518A..10V
R 13.7 [~] E 2010MNRAS.401.1151M
G 14.090639 [0.003350] C 2020yCat.1350....0G
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Identifiers (19) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO B1725-142 PDS 456 2XMM J172819.7-141555 [VV2010] J172819.9-141556
6dFGS gJ172819.8-141556 QSO J1728-1415 XSS J17276-1359 [VV98] J172819.8-141256
IRAS 17254-1413 RX J1728.3-1416 [VV2000] J172819.8-141256 Gaia DR2 4137524313328406144
LQAC 262-014 001 1RXS J172819.3-141600 [VV2003] J172819.9-141556 Gaia DR3 4137524313328406144
NVSS J172819-141555 UVQS J172819.79-141555.8 [VV2006] J172819.9-141556

References (362 between 1850 and 2026) (Total 362)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 4    PM : 2   

   

Observing logs
Herschel : 3    ISO : 3    XMM : 1   

   


External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : QSO B1725-142

Link by name to the catalogue in VizieR :

IRAS 17254-1413 NVSS J172819-141555 1RXS J172819.3-141600 Gaia DR2 4137524313328406144 Gaia DR3 4137524313328406144

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