Dark Energy Survey Year 1 results: the lensing imprint of cosmic voids on the cosmic microwave background
- Vielzeuf, P.
- Kovacs, A.
- Demirbozan, U.
- Fosalba, P.
- Baxter, E.
- Hamaus, N.
- Huterer, D.
- Miquel, R.
- Nadathur, S.
- Pollina, G.
- Sanchez, C.
- Whiteway, L.
- Abbott, T.
- Allam, S.
- Annis, J.
- Avila, S.
- Brooks, D.
- Burke, D.
- Rosell, A.
- Kind, M.
- Carretero, J.
- Cawthon, R.
- Costanzi, M.
- da Costa, L.
- Vicente, J.
- Desai, S.
- Diehl, H.
- Doel, P.
- Eifler, T.
- Everett, S.
- Flaugher, B.
- Frieman, J.
- Garcia-Bellido, J.
- Gaztanaga, E.
- Gerdes, D.
- Gruen, D.
- Gruendl, R.
- Gschwend, J.
- Gutierrez, G.
- Hartley, W.
- Hollowood, D.
- Honscheid, K.
- James, D.
- Kuehn, K.
- Kuropatkin, N.
- Lahav, O.
- Lima, M.
- Maia, M.
- March, M.
- Marshall, J.
- Melchior, P.
- Menanteau, F.
- Palmese, A.
- Paz-Chinchon, F.
- Plazas, A.
- Sanchez, E.
- Scarpine, V.
- Serrano, S.
- Sevilla-Noarbe, I.
- Smith, M.
- Suchyta, E.
- Tarle, G.
- Thomas, D.
- Weller, J.
- Zuntz, J.
DOIAbstract
Cosmic voids gravitationally lens the cosmic microwave background (CMB) radiation, resulting in a distinct imprint on degree scales. We use the simulated CMB lensing convergence map from the Marenostrum Institut de Ciencias de l’Espai (MICE) N-body simulation to calibrate our detection strategy for a given void definition and galaxy tracer density. We then identify cosmic voids in Dark Energy Survey (DES) Year 1 data and stack the Planck 2015 lensing convergence map on their locations, probing the consistency of simulated and observed void lensing signals. When fixing the shape of the stacked convergence profile to that calibrated from simulations, we find imprints at the 3σ significance level for various analysis choices. The best measurem...
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