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A multi-wavelength survey of AGN in the XMM-LSS field I. Quasar selection via the KX technique
| Indexado |
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| DOI | 10.1051/0004-6361:200809584 | ||||
| Año | 2009 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
Results. Of 93 sources selected as candidate quasars by the KX method, 25 are classified as quasars by the subsequent SED analysis. Spectroscopic observations are available for 12/25 of these sources and confirm the quasar hypothesis in each case. Even more, 90% of the SED-classified quasars show X-ray emission, a property not shared by any of the false candidates in the KX-selected sample. Applying a photometric redshift analysis to the sources without spectroscopy indicates that the 25 sources classified as quasars occupy the interval 0.7 <= z <= 2.5. The remaining 68/93 sources are classified as stars and unresolved galaxies.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Nakos, Theodoros | Hombre |
Univ Ghent - Bélgica
Univ Liege - Bélgica Universiteit Gent - Bélgica Universite de Liege - Bélgica University of Leicester - Bélgica |
| 2 | Willis, Jon P. | Hombre |
Univ Victoria - Canadá
University of Victoria - Canadá |
| 3 | Andreon, S. | - |
Osserv Astron Brera - Italia
Osservatorio Astronomico di Brera - Italia |
| 4 | Surdej, J. | Hombre |
Univ Liege - Bélgica
Universite de Liege - Bélgica University of Leicester - Bélgica |
| 5 | Riaud, P. | Hombre |
Univ Liege - Bélgica
Universite de Liege - Bélgica University of Leicester - Bélgica |
| 6 | Hatziminaoglou, E. | Mujer |
ESO - Alemania
Observatorio Europeo Austral - Alemania |
| 7 | Garcet, O. | - |
Univ Liege - Bélgica
Universite de Liege - Bélgica University of Leicester - Bélgica |
| 8 | Alloin, D. | - |
Univ Paris Diderot - Francia
CNRS Centre National de la Recherche Scientifique - Francia Astrophysique, Instrumentation et Modélisation de Paris-Saclay - Francia |
| 9 | Baes, Maarten | Hombre |
Univ Ghent - Bélgica
Universiteit Gent - Bélgica |
| 10 | Galaz, Gaspar | Hombre |
Pontificia Universidad Católica de Chile - Chile
Centro de Excelencia en Astrofísica y Tecnologías Afines - Chile |
| 11 | Pierre, M. | - |
Univ Paris Diderot - Francia
CNRS Centre National de la Recherche Scientifique - Francia Astrophysique, Instrumentation et Modélisation de Paris-Saclay - Francia |
| 12 | QUINTANA-GODOY, HERNAN | - |
Pontificia Universidad Católica de Chile - Chile
|
| 13 | Page, M. J. | Mujer |
Univ Coll London - Reino Unido
UCL - Reino Unido UCL Mullard Space Science Laboratory - Reino Unido |
| 14 | Tedds, J. A. | - |
Univ Leicester - Reino Unido
University of Leicester - Reino Unido |
| 15 | Ceballos, M. T. | - |
CSIC UC - España
CSIC-UC - Instituto de Física de Cantabria (IFCA) - España |
| 16 | Corral, Amalia | Mujer |
CSIC UC - España
CSIC-UC - Instituto de Física de Cantabria (IFCA) - España |
| 17 | Ebrero, J. | Hombre |
CSIC UC - España
CSIC-UC - Instituto de Física de Cantabria (IFCA) - España |
| 18 | Santos, W. A. | Hombre |
Inst Astrophys - Alemania
Leibniz Institute for Astrophysics Potsdam - Alemania |
| 19 | Mateos, S. | - |
Univ Leicester - Reino Unido
University of Leicester - Reino Unido |
| Fuente |
|---|
| National Science Foundation |
| NASA |
| Science and Technology Facilities Council |
| National Aeronautics and Space Administration |
| Natural Sciences and Engineering Research Council of Canada (NSERC) |
| STFC research councils |
| UK and Australian research councils |
| UK PPARC |
| Agradecimiento |
|---|
| Th.N. wishes to thank M. Polletta (IAP) for fruitful discussions concerning the photometric redshifts. He also wishes to thank A. Smette (ESO) and P. Gandhi (RIKEN) for advice at the data reduction step. Th.N., P.R., J.S. and O.G. acknowledge the ESA PRODEX Programme "XMM-LSS" and the Belgian Federal Science Policy Office for their support. G. G. and H. Q. thank FONDAP 15010003 Center for Astrophysics. J.P.W. acknowledges the support of the Natural Sciences and Engineering Research Council of Canada (NSERC). M.J.P., J.A.T. and S.M. acknowledge support from the UK PPARC and STFC research councils. The 2df spectrograph was mounted on the Anglo Australian Telescope and funded by the UK and Australian research councils. |
