The SEXSI Survey: Recent Progress Overview Spitzer Data High-z QSO 2 High-z QSO 2

The SEXSI Survey: Recent Progress Overview Spitzer Data High-z QSO 2 High-z QSO 2 www.phwiki.com

The SEXSI Survey: Recent Progress Overview Spitzer Data High-z QSO 2 High-z QSO 2

Page, Juli, On-Air Personality/PSA Director has reference to this Academic Journal, PHwiki organized this Journal The SEXSI Survey: Recent Progress Megan E. Eckart Caltech with Fiona Harrison, David Helf in addition to , Daniel Stern, Luke Kotredes Overview Introduction to the SEXSI sample in addition to optical followup Highlights of the optical/X-ray sample composition Spitzer data high-z type 2 quasar c in addition to idates SED’s of spectroscopically ID’d sources SEXSI Survey Study dominant contributors to XRB 1034 2-10 keV sources from 27 Ch in addition to ra pointings; (2 deg2) R-b in addition to imaging 438 spectroscopic redshifts from Keck Harrison et al. 2003, ApJ, 596, 944-956 (Paper 1)

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SEXSI Survey Harrison et al. 2003, ApJ, 596, 944-956 (Paper 1) Redshift Distribution Peak: z ~ 0.7 34 narrow-lined Lx>1044 sources (type-2 quasar c in addition to idates) nine z > 2, obscured type-2 quasar c in addition to idates Eckart et al. 2006, ApJS, 165, 19-56 (Paper 3) Fraction Obscured SEXSI – excellent statistics over flux range ~50% obscured independent of luminosity log (Unobscured 2-10 keV Luminosity [erg s-1]) Fraction with log(NH) > 22 Eckart et al. 2006, ApJS, 165, 19-56 (Paper 3)

Spitzer Data Spitzer data over five SEXSI fields (IRAC & MIPS) 250 SEXSI X-ray sources covered 140 with spectroscopic ID 62% of total X-ray sources are in “wedge” 86% of BLAGN 67% of NLAGN 28% of ELG 15% of sources with Lx<10 43.5 erg s-1 - wedge from Stern et al. (2005) High-z QSO 2 - quadrant split from Martinez-Sansigre, Lacy et al. (2005) High-z QSO 2 - quadrant split from Martinez-Sansigre, Lacy et al. (2005) BLAGN SED’s Many BLAGN fit a typical quasar SED (Elvis et al. 1994) BUT, there are many that fit a star as long as ming template better in mid-IR/optical (Devriendt et al. 1999 template plotted above) NLAGN SED’s Fits star as long as ming template in IR Bad match to both templates (would match an absorbed AGN spectrum ) ELG SED’s Overwhelming majority (but not all) of ELG fit star as long as ming template In Progress Synthesis of spectrally identified in addition to unidentified SED’s X-ray stacking of Spitzer sources with Ch in addition to ra nondetections Acknowledgements: Fiona Harrison, David Helf in addition to , Dan Stern, Luke Kotredes Page, Juli KQST-FM On-Air Personality/PSA Director www.phwiki.com

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