2016
DOI: 10.1093/mnras/stw1584
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Joint measurement of lensing–galaxy correlations using SPT and DES SV data

Abstract: We measure the correlation of galaxy lensing and cosmic microwave background lensing with a set of galaxies expected to trace the matter density field. The measurements are performed using pre-survey Dark Energy Survey (DES) Science Verification optical imaging data and millimeter-wave data from the 2500 square degree South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey. The two lensing-galaxy correlations are jointly fit to extract constraints on cosmological parameters, constraints on the redshift distrib… Show more

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Cited by 66 publications
(76 citation statements)
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“…Thus, the kSZ-induced bias is many times larger than the projected statistical errors on the cross-correlation. The kSZ-induced bias thus requires careful treatment for efforts to calibrate the galaxy shear multiplicative bias via such cross-correlations [22,[57][58][59][60][61], as well as for constraints on cosmology.…”
Section: Results: Cross-correlation With Tracersmentioning
confidence: 99%
“…Thus, the kSZ-induced bias is many times larger than the projected statistical errors on the cross-correlation. The kSZ-induced bias thus requires careful treatment for efforts to calibrate the galaxy shear multiplicative bias via such cross-correlations [22,[57][58][59][60][61], as well as for constraints on cosmology.…”
Section: Results: Cross-correlation With Tracersmentioning
confidence: 99%
“…A number of cross-correlations between a lensing map produced from a small SPT patch and DES SV data, which covered ∼140 deg 2 have been measured to date: crosscorrelation with galaxy density (Giannantonio et al 2016), galaxy shear (Kirk et al 2015), and the ratio between galaxygalaxy lensing and galaxy CMB lensing (Baxter et al 2016). With future DES releases, which will have more than 2000 deg 2 overlap, these measurements are expected to improve significantly, allowing us to place tighter cosmological parameter constraints.…”
Section: Discussionmentioning
confidence: 99%
“…The first applications of CMB lensing cross-correlation in cosmological analysis have been reported in Refs. [24][25][26] and, more recently, in Refs. [27][28][29], while the most advanced and comprehensive studies in the field have been recently published by the DES and SPT collaborations [30,31]; for future galaxy surveys, such as Euclid and LSST, this approach is destined to become the standard baseline analysis to obtain cosmological constraints [15,32,33].…”
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confidence: 91%