Lokken, M., Hložek, R., Engelen, A. van, Madhavacheril, M., Baxter, E., DeRose, J., Doux, C., Pandey, S., Rykoff, E. S., Stein, G., To, C., Abbott, T. M. C., Adhikari, S., Aguena, M., Allam, S., Andrade-Oliveira, F., Annis, J., Battaglia, N., Bernstein, G. M., Bertin, E., Bond, J. R., Brooks, D., Calabrese, E. ORCID: https://orcid.org/0000-0003-0837-0068, Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Cawthon, R., Choi, A., Costanzi, M., Crocce, M., Costa, L. N. da, Pereira, M. E. da Silva, Vicente, J. De, Desai, S., Dietrich, J. P., Doel, P., Dunkley, J., Everett, S., Evrard, A. E., Ferraro, S., Flaugher, B., Fosalba, P., Frieman, J., Gallardo, P. A., García-Bellido, J., Gaztanaga, E., Gerdes, D. W., Giannantonio, T., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hill, J. C., Hilton, M., Hincks, A. D., Hinton, S. R., Hollowood, D. L., Honscheid, K., Hoyle, B., Huang, Z., Hughes, J. P., Huterer, D., Jain, B., James, D. J., Jeltema, T., Kuehn, K., Lima, M., Maia, M. A. G., Marshall, J. L., McMahon, J., Melchior, P., Menanteau, F., Miquel, R., Mohr, J. J., Moodley, K., Morgan, R., Nati, F., Page, L., Ogando, R. L. C., Palmese, A., Paz-Chinchón, F., Malagón, A. A. Plazas, Pieres, A., Romer, A. K., Rozo, E., Sanchez, E., Scarpine, V., Schillaci, A., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Sheldon, E., Shin, T., Sifón, C., Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., Tucker, D. L., Varga, T. N., Weller, J., Wechsler, R. H., Wilkinson, R. D., Wollack, E. J. and Xu, Z. 2022. Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey. I. Evidence for thermal energy anisotropy using oriented stacking. Astrophysical Journal 933 (2) , 134. 10.3847/1538-4357/ac7043 |
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Abstract
Abstract: The cosmic web contains filamentary structure on a wide range of scales. On the largest scales, superclustering aligns multiple galaxy clusters along intercluster bridges, visible through their thermal Sunyaev–Zel’dovich signal in the cosmic microwave background. We demonstrate a new, flexible method to analyze the hot gas signal from multiscale extended structures. We use a Compton y-map from the Atacama Cosmology Telescope (ACT) stacked on redMaPPer cluster positions from the optical Dark Energy Survey (DES). Cutout images from the y-map are oriented with large-scale structure information from DES galaxy data such that the superclustering signal is aligned before being overlaid. We find evidence of an extended quadrupole moment of the stacked y signal at the 3.5σ level, demonstrating that the large-scale thermal energy surrounding galaxy clusters is anisotropically distributed. We compare our ACT × DES results with the Buzzard simulations, finding broad agreement. Using simulations, we highlight the promise of this novel technique for constraining the evolution of anisotropic, non-Gaussian structure using future combinations of microwave and optical surveys.
Item Type: | Article |
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Date Type: | Published Online |
Status: | Published |
Schools: | Physics and Astronomy |
Additional Information: | License information from Publisher: LICENSE 1: URL: http://creativecommons.org/licenses/by/4.0/, Type: cc-by |
Publisher: | American Astronomical Society |
ISSN: | 0004-637X |
Date of First Compliant Deposit: | 11 July 2022 |
Date of Acceptance: | 15 May 2022 |
Last Modified: | 14 May 2023 20:56 |
URI: | https://orca.cardiff.ac.uk/id/eprint/151197 |
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