A Direct Measurement of the Linear Bias of Mid-infrared-selected Quasars at z ap 1 Using Cosmic Microwave Background Lensing
dc.contributor.author | Geach, J.~E. | |
dc.contributor.author | Hickox, R.~C. | |
dc.contributor.author | Bleem, L.~E. | |
dc.contributor.author | Brodwin, M. | |
dc.contributor.author | Holder, G.~P. | |
dc.contributor.author | Aird, K.~A. | |
dc.contributor.author | Benson, B.~A. | |
dc.contributor.author | Bhattacharya, S. | |
dc.contributor.author | Carlstrom, J.~E. | |
dc.contributor.author | Chang, C.~L. | |
dc.contributor.author | Cho, H.-M. | |
dc.contributor.author | Crawford, T.~M. | |
dc.contributor.author | Crites, A.~T. | |
dc.contributor.author | de Haan, T. | |
dc.contributor.author | Dobbs, M.~A. | |
dc.contributor.author | Dudley, J. | |
dc.contributor.author | George, E.~M. | |
dc.contributor.author | Hainline, K.~N. | |
dc.contributor.author | Halverson, N.~W. | |
dc.contributor.author | Holzapfel, W.~L. | |
dc.contributor.author | Hoover, S. | |
dc.contributor.author | Hou, Z. | |
dc.contributor.author | Hrubes, J.~D. | |
dc.contributor.author | Keisler, R. | |
dc.contributor.author | Knox, L. | |
dc.contributor.author | Lee, A.~T. | |
dc.contributor.author | Leitch, E.~M. | |
dc.contributor.author | Lueker, M. | |
dc.contributor.author | Luong-Van, D. | |
dc.contributor.author | Marrone, D.~P. | |
dc.contributor.author | McMahon, J.~J. | |
dc.contributor.author | Mehl, J. | |
dc.contributor.author | Meyer, S.~S. | |
dc.contributor.author | Millea, M. | |
dc.contributor.author | Mohr, J.~J. | |
dc.contributor.author | Montroy, T.~E. | |
dc.contributor.author | Myers, A.~D. | |
dc.contributor.author | Padin, S. | |
dc.contributor.author | Plagge, T. | |
dc.contributor.author | Pryke, C. | |
dc.contributor.author | Reichardt, C.~L. | |
dc.contributor.author | Ruhl, J.~E. | |
dc.contributor.author | Sayre, J.~T. | |
dc.contributor.author | Schaffer, K.~K. | |
dc.contributor.author | Shaw, L. | |
dc.contributor.author | Shirokoff, E. | |
dc.contributor.author | Spieler, H.~G. | |
dc.contributor.author | Staniszewski, Z. | |
dc.contributor.author | Stark, A.~A. | |
dc.contributor.author | Story, K.~T. | |
dc.contributor.author | van Engelen, A. | |
dc.contributor.author | Vanderlinde, K. | |
dc.contributor.author | Vieira, J.~D. | |
dc.contributor.author | Williamson, R. | |
dc.contributor.author | Zahn, O. | |
dc.date.accessioned | 2018-09-12T15:19:35Z | |
dc.date.available | 2018-09-12T15:19:35Z | |
dc.date.issued | 2013-10-20 | |
dc.identifier.citation | Geach , J E , Hickox , R C , Bleem , L E , Brodwin , M , Holder , G P , Aird , K A , Benson , B A , Bhattacharya , S , Carlstrom , J E , Chang , C L , Cho , H-M , Crawford , T M , Crites , A T , de Haan , T , Dobbs , M A , Dudley , J , George , E M , Hainline , K N , Halverson , N W , Holzapfel , W L , Hoover , S , Hou , Z , Hrubes , J D , Keisler , R , Knox , L , Lee , A T , Leitch , E M , Lueker , M , Luong-Van , D , Marrone , D P , McMahon , J J , Mehl , J , Meyer , S S , Millea , M , Mohr , J J , Montroy , T E , Myers , A D , Padin , S , Plagge , T , Pryke , C , Reichardt , C L , Ruhl , J E , Sayre , J T , Schaffer , K K , Shaw , L , Shirokoff , E , Spieler , H G , Staniszewski , Z , Stark , A A , Story , K T , van Engelen , A , Vanderlinde , K , Vieira , J D , Williamson , R & Zahn , O 2013 , ' A Direct Measurement of the Linear Bias of Mid-infrared-selected Quasars at z ap 1 Using Cosmic Microwave Background Lensing ' , Astrophysical Journal Letters , vol. 776 , no. 2 . https://doi.org/10.1088/2041-8205/776/2/L41 | |
dc.identifier.issn | 2041-8205 | |
dc.identifier.other | Bibtex: urn:f0025488314f3840a506af25ca706415 | |
dc.identifier.uri | http://hdl.handle.net/2299/20566 | |
dc.description.abstract | We measure the cross-power spectrum of the projected mass density as traced by the convergence of the cosmic microwave background lensing field from the South Pole Telescope (SPT) and a sample of Type 1 and 2 (unobscured and obscured) quasars at langzrang ~ 1 selected with the Wide-field Infrared Survey Explorer, over 2500 deg2. The cross-power spectrum is detected at ≈7σ, and we measure a linear bias b = 1.61 ± 0.22, consistent with clustering analyses. Using an independent lensing map, derived from Planck observations, to measure the cross-spectrum, we find excellent agreement with the SPT analysis. The bias of the combined sample of Type 1 and 2 quasars determined in this work is similar to that previously determined for Type 1 quasars alone; we conclude that obscured and unobscured quasars trace the matter field in a similar way. This result has implications for our understanding of quasar unification and evolution schemes. | en |
dc.format.extent | 6 | |
dc.format.extent | 1585097 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal Letters | |
dc.subject | cosmology: observations | |
dc.title | A Direct Measurement of the Linear Bias of Mid-infrared-selected Quasars at z ap 1 Using Cosmic Microwave Background Lensing | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Science & Technology Research Institute | |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1088/2041-8205/776/2/L41 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true |