Willott, C.J.; Almaini, O.; Manners, J.; Johnson, O.; Lawrence, A.; Dunlop, J.S.; Mann, R.G.; Perez-Fournon, I.; Gonzalez-Solares, E.; Cabrera-Guerra, F.; Serjeant, S.; Oliver, S.J. and Rowan-Robinson, M.
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We present initial follow-up results of the ELAIS Deep X-ray Survey which is being undertaken with the Chandra and XMM-Newton Observatories. 235 X-ray sources are detected in our two 75 ks ACIS-I observations in the well-studied ELAIS N1 and N2 areas. 90% of the X-ray sources are identified optically to R=26 with a median magnitude of R=24. We show that objects which are unresolved optically (i.e. quasars) follow a correlation between their optical and X-ray fluxes, whereas galaxies do not. We also find that the quasars with fainter optical counterparts have harder X-ray spectra, consistent with absorption at both wavebands. Initial spectroscopic follow-up has revealed a large fraction of high-luminosity Type 2 quasars. The prospects for studying the evolution of the host galaxies of X-ray selected Type 2 AGN are considered.
|Item Type:||Conference Item|
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---Proceedings of XXI Moriond Conference: "Galaxy Clusters and the High Redshift Universe Observed in X-rays", edited by D. Neumann, F.Durret, & J. Tran Thanh Van, Astrophysics Meeting, March 10-17, 2001 Savoie, France. Edited by D.M. Neumann & J.T.T. Van.
|Academic Unit/Department:||Science > Physical Sciences|
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||Users 13 not found.|
|Date Deposited:||07 Nov 2006|
|Last Modified:||02 Dec 2010 19:54|
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