Dark Energy Survey Year 1 Results: Cosmological constraints from cluster abundances and weak lensing Academic Article uri icon

abstract

  • Combining multiple observational probes is a powerful technique to provide robust and precise constraints on cosmological parameters. In this letter, we present the first joint analysis of cluster abundances and auto/cross correlations of three cosmic tracer fields measured from the first year data of the Dark Energy Survey: galaxy density, weak gravitational lensing shear, and cluster density split by optical richness. From a joint analysis of cluster abundances, three cluster cross-correlations, and auto correlations of galaxy density, we obtain $Omega_{
    m{m}}=0.305^{+0.055}_{-0.038}$ and $sigma_8=0.783^{+0.064}_{-0.054}$. This result is consistent with constraints from the DES-Y1 galaxy clustering and weak lensing two-point correlation functions for the flat $
    uLambda$CDM model. We thus combine cluster abundances and all two-point correlations from three cosmic tracer fields and find improved constraints on cosmological parameters as well as on the cluster observable--mass scaling relation. This analysis is an important advance in both optical cluster cosmology and multi-probe analyses of upcoming wide imaging surveys.

published proceedings

  • Physical Review D

altmetric score

  • 30.08

author list (cited authors)

  • Abbott, T., Aguena, M., Alarcon, A., Allam, S., Allen, S., Annis, J., ... Zuntz, J.

citation count

  • 71

complete list of authors

  • Abbott, TMC||Aguena, M||Alarcon, A||Allam, S||Allen, S||Annis, J||Avila, S||Bacon, D||Bechtol, K||Bermeo, A||Bernstein, GM||Bertin, E||Bhargava, S||Bocquet, S||Brooks, D||Brout, D||Buckley-Geer, E||Burke, DL||Carnero Rosell, A||Carrasco Kind, M||Carretero, J||Castander, FJ||Cawthon, R||Chang, C||Chen, X||Choi, A||Costanzi, M||Crocce, M||da Costa, LN||Davis, TM||De Vicente, J||DeRose, J||Desai, S||Diehl, HT||Dietrich, JP||Dodelson, S||Doel, P||Drlica-Wagner, A||Eckert, K||Eifler, TF||Elvin-Poole, J||Estrada, J||Everett, S||Evrard, AE||Farahi, A||Ferrero, I||Flaugher, B||Fosalba, P||Frieman, J||García-Bellido, J||Gatti, M||Gaztanaga, E||Gerdes, DW||Giannantonio, T||Giles, P||Grandis, S||Gruen, D||Gruendl, RA||Gschwend, J||Gutierrez, G||Hartley, WG||Hinton, SR||Hollowood, DL||Honscheid, K||Hoyle, B||Huterer, D||James, DJ||Jarvis, M||Jeltema, T||Johnson, MWG||Johnson, MD||Kent, S||Krause, E||Kron, R||Kuehn, K||Kuropatkin, N||Lahav, O||Li, TS||Lidman, C||Lima, M||Lin, H||MacCrann, N||Maia, MAG||Mantz, A||Marshall, JL||Martini, P||Mayers, J||Melchior, P||Mena-Fernández, J||Menanteau, F||Miquel, R||Mohr, JJ||Nichol, RC||Nord, B||Ogando, RLC||Palmese, A||Paz-Chinchón, F||Plazas, AA||Prat, J||Rau, MM||Romer, AK||Roodman, A||Rooney, P||Rozo, E||Rykoff, ES||Sako, M||Samuroff, S||Sánchez, C||Sanchez, E||Saro, A||Scarpine, V||Schubnell, M||Scolnic, D||Serrano, S||Sevilla-Noarbe, I||Sheldon, E||Smith, J Allyn||Smith, M||Suchyta, E||Swanson, MEC||Tarle, G||Thomas, D||To, C||Troxel, MA||Tucker, DL||Varga, TN||von der Linden, A||Walker, AR||Wechsler, RH||Weller, J||Wilkinson, RD||Wu, H||Yanny, B||Zhang, Y||Zhang, Z||Zuntz, J

publication date

  • July 2020