Mass Calibration of Optically Selected DES Clusters Using a Measurement of CMB-cluster Lensing with SPTpol Data Academic Article uri icon


  • 2019. The American Astronomical Society. All rights reserved. We use cosmic microwave background (CMB) temperature maps from the 500 deg 2 SPTpol survey to measure the stacked lensing convergence of galaxy clusters from the Dark Energy Survey (DES) Year-3 redMaPPer (RM) cluster catalog. The lensing signal is extracted through a modified quadratic estimator designed to be unbiased by the thermal Sunyaev-Zel'dovich (tSZ) effect. The modified estimator uses a tSZ-free map, constructed from the SPTpol 95 and 150 GHz data sets, to estimate the background CMB gradient. For lensing reconstruction, we employ two versions of the RM catalog: a flux-limited sample containing 4003 clusters and a volume-limited sample with 1741 clusters. We detect lensing at a significance of 8.7(6.7) with the flux (volume)-limited sample. By modeling the reconstructed convergence using the Navarro-Frenk-White profile, we find the average lensing masses to be M 200m = (1.62 -0.25+0.32 [stat] 0.04 [sys.]) and (1.28 -0.18+0.14 [stat] 0.03[sys.]) 10 14 M for the volume- and flux-limited samples, respectively. The systematic error budget is much smaller than the statistical uncertainty and is dominated by the uncertainties in the RM cluster centroids. We use the volume-limited sample to calibrate the normalization of the mass-richness scaling relation, and find a result consistent with the galaxy weak-lensing measurements from DES.

published proceedings


altmetric score

  • 12.41

author list (cited authors)

  • Raghunathan, S., Patil, S., Baxter, E., Benson, B. A., Bleem, L. E., Chou, T. L., ... Zhang, Y.

citation count

  • 23

complete list of authors

  • Raghunathan, S||Patil, S||Baxter, E||Benson, BA||Bleem, LE||Chou, TL||Crawford, TM||Holder, GP||McClintock, T||Reichardt, CL||Rozo, E||Varga, TN||Abbott, TMC||Ade, PAR||Allam, S||Anderson, AJ||Annis, J||Austermann, JE||Avila, S||Beall, JA||Bechtol, K||Bender, AN||Bernstein, G||Bertin, E||Bianchini, F||Brooks, D||Burke, DL||Carlstrom, JE||Carretero, J||Chang, CL||Chiang, HC||Cho, H-M||Citron, R||Crites, AT||Cunha, CE||Costa, LN da||Davis, C||Desai, S||Diehl, HT||Dietrich, JP||Dobbs, MA||Doel, P||Eifler, TF||Everett, W||Evrard, AE||Flaugher, B||Fosalba, P||Frieman, J||Gallicchio, J||GarcĂ­a-Bellido, J||Gaztanaga, E||George, EM||Gilbert, A||Gruen, D||Gruendl, RA||Gschwend, J||Gupta, N||Gutierrez, G||Haan, T de||Halverson, NW||Harrington, N||Hartley, WG||Henning, JW||Hilton, GC||Hollowood, DL||Holzapfel, WL||Honscheid, K||Hou, Z||Hoyle, B||Hrubes, JD||Huang, N||Hubmayr, J||Irwin, KD||James, DJ||Jeltema, T||Kim, AG||Kind, M Carrasco||Knox, L||Kovacs, A||Kuehn, K||Kuropatkin, N||Lee, AT||Li, TS||Lima, M||Maia, MAG||Marshall, JL||McMahon, JJ||Melchior, P||Menanteau, F||Meyer, SS||Miller, CJ||Miquel, R||Mocanu, L||Montgomery, J||Nadolski, A||Natoli, T||Nibarger, JP||Novosad, V||Padin, S||Plazas, AA||Pryke, C||Rapetti, D||Romer, AK||Rosell, A Carnero||Ruhl, JE||Saliwanchik, BR||Sanchez, E||Sayre, JT||Scarpine, V||Schaffer, KK||Schubnell, M||Serrano, S||Sevilla-Noarbe, I||Smecher, G||Smith, RC||Soares-Santos, M||Sobreira, F||Stark, AA||Story, KT||Suchyta, E||Swanson, MEC||Tarle, G||Thomas, D||Tucker, C||Vanderlinde, K||Vicente, J De||Vieira, JD||Wang, G||Whitehorn, N||Wu, WLK||Zhang, Y

publication date

  • February 2019