- Main
Detection of CMB-Cluster Lensing using Polarization Data from SPTpol
- Raghunathan, S;
- Patil, S;
- Baxter, E;
- Benson, BA;
- Bleem, LE;
- Crawford, TM;
- Holder, GP;
- McClintock, T;
- Reichardt, CL;
- Varga, TN;
- Whitehorn, N;
- Ade, PAR;
- Allam, S;
- Anderson, AJ;
- Austermann, JE;
- Avila, S;
- Avva, JS;
- Bacon, D;
- Beall, JA;
- Bender, AN;
- Bianchini, F;
- Bocquet, S;
- Brooks, D;
- Burke, DL;
- Carlstrom, JE;
- Carretero, J;
- Castander, FJ;
- Chang, CL;
- Chiang, HC;
- Citron, R;
- Costanzi, M;
- Crites, AT;
- da Costa, LN;
- Desai, S;
- Diehl, HT;
- Dietrich, JP;
- Dobbs, MA;
- Doel, P;
- Everett, S;
- Evrard, AE;
- Feng, C;
- Flaugher, B;
- Fosalba, P;
- Frieman, J;
- Gallicchio, J;
- García-Bellido, J;
- Gaztanaga, E;
- George, EM;
- Giannantonio, T;
- Gilbert, A;
- Gruendl, RA;
- Gschwend, J;
- Gupta, N;
- Gutierrez, G;
- de Haan, T;
- Halverson, NW;
- Harrington, N;
- Henning, JW;
- Hilton, GC;
- Hollowood, DL;
- Holzapfel, WL;
- Honscheid, K;
- Hrubes, JD;
- Huang, N;
- Hubmayr, J;
- Irwin, KD;
- Jeltema, T;
- Kind, M Carrasco;
- Knox, L;
- Kuropatkin, N;
- Lahav, O;
- Lee, AT;
- Li, D;
- Lima, M;
- Lowitz, A;
- Maia, MAG;
- Marshall, JL;
- McMahon, JJ;
- Melchior, P;
- Menanteau, F;
- Meyer, SS;
- Miquel, R;
- Mocanu, LM;
- Mohr, JJ;
- Montgomery, J;
- Moran, C Corbett;
- Nadolski, A;
- Natoli, T;
- Nibarger, JP;
- Noble, G;
- Novosad, V;
- Ogando, RLC;
- Padin, S;
- Plazas, AA;
- Pryke, C;
- Rapetti, D;
- Romer, AK;
- Roodman, A;
- Rosell, A Carnero;
- Rozo, E;
- Ruhl, JE;
- Rykoff, ES;
- Saliwanchik, BR;
- Sanchez, E;
- Sayre, JT;
- Scarpine, V;
- Schaffer, KK;
- Schubnell, M;
- Serrano, S;
- Sevilla-Noarbe, I;
- Sievers, C;
- Smecher, G;
- Smith, M;
- Soares-Santos, M;
- Stark, AA;
- Story, KT;
- Suchyta, E;
- Swanson, MEC;
- Tarle, G;
- Tucker, C;
- Vanderlinde, K;
- Veach, T;
- De Vicente, J;
- Vieira, JD;
- Vikram, V;
- Wang, G;
- Wu, WLK;
- Yefremenko, V;
- Zhang, Y
Published Web Location
https://doi.org/10.1103/physrevlett.123.181301Abstract
We report the first detection of gravitational lensing due to galaxy clusters using only the polarization of the cosmic microwave background (CMB). The lensing signal is obtained using a new estimator that extracts the lensing dipole signature from stacked images formed by rotating the cluster-centered Stokes QU map cutouts along the direction of the locally measured background CMB polarization gradient. Using data from the SPTpol 500 deg^{2} survey at the locations of roughly 18 000 clusters with richness λ≥10 from the Dark Energy Survey (DES) Year-3 full galaxy cluster catalog, we detect lensing at 4.8σ. The mean stacked mass of the selected sample is found to be (1.43±0.40)×10^{14}M_{⊙} which is in good agreement with optical weak lensing based estimates using DES data and CMB-lensing based estimates using SPTpol temperature data. This measurement is a key first step for cluster cosmology with future low-noise CMB surveys, like CMB-S4, for which CMB polarization will be the primary channel for cluster lensing measurements.
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