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1 XQ-100: A legacy survey of of quasars and and their absorption lines observed with with VLT/XSHOOTER S. S. López (U. de de Chile) on on behalf of of the XQ-100 Collaboration George Becker, Lise Christensen, Stefano Cristiani, Guido Cupani, Kelly Denney, Mirka Dessauges-Zavadsky, Valentina D'Odorico, Sara Ellison, Martin Haehnelt, Fred Hamann, Joseph Hennawi, Tae-Sun Kim, Brice Ménard, Isabelle Pâris,, J. J. Xavier Prochaska, Marianne Vestergaard, Matteo Viel, Lutz Wisotzki, Gábor Worseck, Trystyn Berg, Serena Perrotta, Ruben Sanchez Ramirez, Paula López, Rikke Lund Saust
2 XQ-100: A legacy survey of of quasars and and their absorption lines observed with with VLT/XSHOOTER S. S. López (U. de de Chile) on on behalf of of the XQ-100 Collaboration George Becker, Lise Christensen, Stefano Cristiani, Guido Cupani, Kelly Denney, Mirka Dessauges-Zavadsky, Valentina D'Odorico, Sara Ellison, Martin Haehnelt, Fred Hamann, Joseph Hennawi, Tae-Sun Kim, Brice Ménard, Isabelle Pâris,, J. J. Xavier Prochaska, Marianne Vestergaard, Matteo Viel, Lutz Wisotzki, Gábor Worseck, Trystyn Berg, Serena Perrotta, Ruben Sanchez Ramirez, Paula López, Rikke Lund Saust
3 Homogeneous sample of of 100 VLT/XSHOOTER spectra of of QSOs at at z = Spectral coverage nm R = 6000 (UVB),, 9000 (VIS), 6000 (NIR) S/N > Awarded 100 hours as as an an ESO LP LP within Chilean time Service mode Survey goal
4 Main science goals IGM science MgII survey (B. (B. Ménard) DLA survey (S. (S. Ellison) LLS survey (J. (J. X. X. Prochaska) AGN science IR IR redshifts (I. (I. Páris) Physical properties of of AGN (F. (F. Hamman) Associated absorbers (V. (V. D'Odorico) Cosmology Matter power spectrum (M. Viel) Proximity effect (G. Worseck)
5 Main science goals IGM science MgII survey (B. (B. Ménard) DLA survey (S. (S. Ellison) LLS survey (J. (J. X. X. Prochaska) AGN science IR IR redshifts (I. (I. Páris) Physical properties of of AGN (F. (F. Hamman) Required signicance in dn/dz and fluxpower spectrum dictates need for 100 QSOs Associated absorbers (V. (V. D'Odorico) Cosmology Matter power spectrum (M. Viel) Proximity effect (G. Worseck)
6 Main science goals IGM science MgII survey (B. (B. Ménard) DLA survey (S. (S. Ellison) LLS survey (J. (J. X. X. Prochaska) AGN science IR IR redshifts (I. (I. Páris) Physical properties of of AGN (F. (F. Hamman) Associated absorbers (V. (V. D'Odorico) z > 3.5: every QSO contributes redshift path of at least 0.5 for Mg II survey in the NIR z < 4.5 avoids line blanketing in the forest. Cosmology Matter power spectrum (M. Viel) Proximity effect (G. Worseck)
7 Target selection LP LP quasar quasar Q , Q , z=3.59 z=3.59 magr magr = = Exp. Exp. Time Time = = 1h 1h Targets selected initially from NED to to have z > 3.5 and δ < SDSS DR7 database screened with further criterion r r < 20. Candidates checked in in the APM catalog to to obtain uniform magnitudes in in the R band Some additional targets selected from literature sources. APM R
8 Main science goals IGM science MgII survey (B. (B. Ménard) DLA survey (S. (S. Ellison) LLS survey (J. (J. X. X. Prochaska) AGN science IR IR redshifts (I. (I. Páris) Combination of Blind survey high redshift Echellete resolution, high S/N, clearly a benefit for all science goals Physical properties of of AGN (F. (F. Hamman) Associated absorbers (V. (V. D'Odorico) Cosmology Matter power spectrum (M. Viel) Proximity effect (G. Worseck)
9 Observations started in in April 2012 and and completed in in April 2014 Core team to to produce final sciencequality spectra & catalogs (L. (L. Christensen, SL, S: S: Ellison, V. V. Dódorico, G. G. Cupani) OB preparation Interactions with ESO Target selection/replacements Data reduction, internal data repository Data products
10 Data reduction (G. (G. Becker, G. G. Cupani) NIR NIR spectrum extraction IDL IDL pipeline (G. (G. Becker) focused on on optimized sky-substraction and and spectrum extraction. Despite some unavoidable residuals, clearly more efficient than than ESO's.
11 Data quality: S/N S/N
12 XQ-100 builds on on previous NIR NIR spectroscopic surveys providing a new new sample at at higher-r and and S/N S/N
13 Telluric subtraction (K. (K. Denney)
14 PCA PCA continuum (I. (I. Pâris) fitted using a linear combination of of PC. takes into account more accurately shape of of emission lines in in the Ly-α forest deals with missing information due to to e.g. DLAs coinciding with emission lines.
15 Selected ongoing work IGM science MgII survey (B. (B. Ménard) DLA survey (S. (S. Ellison) LLS survey (J. (J. X. X. Prochaska) AGN science IR IR redshifts (I. (I. Páris) Physical properties of of AGN (F. (F. Hamman) Associated absorbers (V. (V. D'Odorico) Cosmology Matter power spectrum (M. Viel) Proximity effect (G. Worseck)
16 DLA DLA survey, prelimary results (T. (T. Berg, R. R. Sánchez-Ramírez) Found DLAs DLAs and and subdlas
17 DLA DLA survey, prelimary results (T. (T. Berg, R. R. Sánchez-Ramírez) Suggests Omega gas gas decline at at z~4 z~4
18 AGN science (I): (I): Mini-BALs (F. (F. Hamann) Very few systems are known at at speeds approaching 0.2c common variability of of these mini-bals requires physical similarities Seven LP LP quasars have weak CIV BALs
19 AGN science (II): XQ-100 probes the high-redshift and high-luminosity quasars SDSSIII/BOSS XQ-100 SDSSIII/BOSS XQ-100 Luminosity dependence and no no redshift evolution from joint analysis of of SDSS-III/BOSS and XQ-100 (I. (I. Pâris)
20 Associate narrow absorption systems (S. (S. Perrotta) ~79% AALs in in XQ-100 Possible partial coverage (D'Odorico et et al. al. 2004)
21 Data Data access and and delivery of of data data products Plan is is to to deliver reduced data by by the end of of 2014 Stacked exposures.and merged arms Basic relative fluxing. Paper documenting reduction steps.
22 Web Web site site at at FIN FIN
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