Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey. I. Evidence for Thermal Energy Anisotropy Using Oriented Stacking

• Autor(a) principal: Lokken, M.
• Data de Publicação: 2022
• Outros Autores: 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. [UNESP], Annis, J., Battaglia, N., Bernstein, G. M., Bertin, E., Bond, J. R., Brooks, D., Calabrese, E., 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., Xu, Z.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.3847/1538-4357/ac7043; http://hdl.handle.net/11449/241442

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.