University of Hertfordshire

From the same journal

From the same journal

By the same authors

Standard

A Direct Measurement of the Linear Bias of Mid-infrared-selected Quasars at z ap 1 Using Cosmic Microwave Background Lensing. / 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.

In: Astrophysical Journal Letters, Vol. 776, No. 2, 20.10.2013.

Research output: Contribution to journalArticlepeer-review

Harvard

Geach, JE, Hickox, RC, Bleem, LE, Brodwin, M, Holder, GP, Aird, KA, Benson, BA, Bhattacharya, S, Carlstrom, JE, Chang, CL, Cho, H-M, Crawford, TM, Crites, AT, de Haan, T, Dobbs, MA, Dudley, J, George, EM, Hainline, KN, Halverson, NW, Holzapfel, WL, Hoover, S, Hou, Z, Hrubes, JD, Keisler, R, Knox, L, Lee, AT, Leitch, EM, Lueker, M, Luong-Van, D, Marrone, DP, McMahon, JJ, Mehl, J, Meyer, SS, Millea, M, Mohr, JJ, Montroy, TE, Myers, AD, Padin, S, Plagge, T, Pryke, C, Reichardt, CL, Ruhl, JE, Sayre, JT, Schaffer, KK, Shaw, L, Shirokoff, E, Spieler, HG, Staniszewski, Z, Stark, AA, Story, KT, van Engelen, A, Vanderlinde, K, Vieira, JD, 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

APA

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., ... 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, 776(2). https://doi.org/10.1088/2041-8205/776/2/L41

Vancouver

Author

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. / A Direct Measurement of the Linear Bias of Mid-infrared-selected Quasars at z ap 1 Using Cosmic Microwave Background Lensing. In: Astrophysical Journal Letters. 2013 ; Vol. 776, No. 2.

Bibtex

@article{7ee3b9f999c84e598416c5c27dea8710,
title = "A Direct Measurement of the Linear Bias of Mid-infrared-selected Quasars at z ap 1 Using Cosmic Microwave Background Lensing",
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.",
keywords = "cosmology: observations",
author = "J.~E. Geach and R.~C. Hickox and L.~E. Bleem and M. Brodwin and G.~P. Holder and K.~A. Aird and B.~A. Benson and S. Bhattacharya and J.~E. Carlstrom and C.~L. Chang and H.-M. Cho and T.~M. Crawford and A.~T. Crites and {de Haan}, T. and M.~A. Dobbs and J. Dudley and E.~M. George and K.~N. Hainline and N.~W. Halverson and W.~L. Holzapfel and S. Hoover and Z. Hou and J.~D. Hrubes and R. Keisler and L. Knox and A.~T. Lee and E.~M. Leitch and M. Lueker and D. Luong-Van and D.~P. Marrone and J.~J. McMahon and J. Mehl and S.~S. Meyer and M. Millea and J.~J. Mohr and T.~E. Montroy and A.~D. Myers and S. Padin and T. Plagge and C. Pryke and C.~L. Reichardt and J.~E. Ruhl and J.~T. Sayre and K.~K. Schaffer and L. Shaw and E. Shirokoff and H.~G. Spieler and Z. Staniszewski and A.~A. Stark and K.~T. Story and {van Engelen}, A. and K. Vanderlinde and J.~D. Vieira and R. Williamson and O. Zahn",
year = "2013",
month = oct,
day = "20",
doi = "10.1088/2041-8205/776/2/L41",
language = "English",
volume = "776",
journal = "Astrophysical Journal Letters",
issn = "2041-8205",
publisher = "IOP Publishing Ltd.",
number = "2",

}

RIS

TY - JOUR

T1 - A Direct Measurement of the Linear Bias of Mid-infrared-selected Quasars at z ap 1 Using Cosmic Microwave Background Lensing

AU - Geach, J.~E.

AU - Hickox, R.~C.

AU - Bleem, L.~E.

AU - Brodwin, M.

AU - Holder, G.~P.

AU - Aird, K.~A.

AU - Benson, B.~A.

AU - Bhattacharya, S.

AU - Carlstrom, J.~E.

AU - Chang, C.~L.

AU - Cho, H.-M.

AU - Crawford, T.~M.

AU - Crites, A.~T.

AU - de Haan, T.

AU - Dobbs, M.~A.

AU - Dudley, J.

AU - George, E.~M.

AU - Hainline, K.~N.

AU - Halverson, N.~W.

AU - Holzapfel, W.~L.

AU - Hoover, S.

AU - Hou, Z.

AU - Hrubes, J.~D.

AU - Keisler, R.

AU - Knox, L.

AU - Lee, A.~T.

AU - Leitch, E.~M.

AU - Lueker, M.

AU - Luong-Van, D.

AU - Marrone, D.~P.

AU - McMahon, J.~J.

AU - Mehl, J.

AU - Meyer, S.~S.

AU - Millea, M.

AU - Mohr, J.~J.

AU - Montroy, T.~E.

AU - Myers, A.~D.

AU - Padin, S.

AU - Plagge, T.

AU - Pryke, C.

AU - Reichardt, C.~L.

AU - Ruhl, J.~E.

AU - Sayre, J.~T.

AU - Schaffer, K.~K.

AU - Shaw, L.

AU - Shirokoff, E.

AU - Spieler, H.~G.

AU - Staniszewski, Z.

AU - Stark, A.~A.

AU - Story, K.~T.

AU - van Engelen, A.

AU - Vanderlinde, K.

AU - Vieira, J.~D.

AU - Williamson, R.

AU - Zahn, O.

PY - 2013/10/20

Y1 - 2013/10/20

N2 - 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.

AB - 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.

KW - cosmology: observations

U2 - 10.1088/2041-8205/776/2/L41

DO - 10.1088/2041-8205/776/2/L41

M3 - Article

VL - 776

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

SN - 2041-8205

IS - 2

ER -