The Atacama Cosmology Telescope: Detection of the pairwise kinematic Sunyaev-Zel’dovich effect with SDSS DR15 galaxies
- Calafut, V.
- Gallardo, P. A.
- Vavagiakis, E. M.
- Amodeo, S.
- Aiola, S.
- Austermann, J. E.
- Battaglia, N.
- Battistelli, E. S.
- Beall, J. A.
- Bean, R.
- Bond, J. R.
- Calabrese, E.
- Choi, S. K.
- Cothard, N. F.
- Devlin, M. J.
- Duell, C. J.
- Duff, S. M.
- Duivenvoorden, A. J.
- Dunkley, J.
- Dunner, R.
- Ferraro, S.
- Guan, Y.
- Hill, J. C.
- Hilton, G. C.
- Hilton, M.
- Hložek, R.
- Huber, Z. B.
- Hubmayr, J.
- Huffenberger, K. M.
- Hughes, J. P.
- Koopman, B. J.
- Kosowsky, A.
- Li, Y.
- Lokken, M.
- Madhavacheril, M.
- McMahon, J.
- Moodley, K.
- Naess, S.
- Nati, F.
- Newburgh, L. B.
- Niemack, M. D.
- Page, L. A.
- Partridge, B.
- Schaan, E.
- Schillaci, A.
- Sifón, C.
- Spergel, D. N.
- Staggs, S. T.
- Ullom, J. N.
- Vale, L. R.
- Van Engelen, A.
- Van Lanen, J.
- Wollack, E. J.
- Xu, Z.
DOIAbstract
We present a 5.4σ detection of the pairwise kinematic Sunyaev-Zeldovich (kSZ) effect using Atacama Cosmology Telescope (ACT) and Planck CMB observations in combination with Luminous Red Galaxy samples from the Sloan Digital Sky Survey (SDSS) DR15 catalog. Results are obtained using three ACT CMB maps: co-added 150 and 98 GHz maps, combining observations from 2008–2018 (ACT DR5), which overlap with SDSS DR15 over 3,700 sq. deg., and a component-separated map using night-time only observations from 2014–2015 (ACT DR4), overlapping with SDSS DR15 over 2,089 sq. deg. Comparisons of the results from these three maps provide consistency checks in relation to potential frequency-dependent foreground contamination. A total of 343,647 galaxies are u...
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