Primordial non-Gaussianities with weak lensing: Information on non-linear scales in the Ulagam full-sky simulations

Autor: Anbajagane, Dhayaa, Chang, Chihway, Lee, Hayden, Gatti, Marco

Primordial non-Gaussianities (PNGs) are signatures in the density field that encode particle physics processes from the inflationary epoch. Such signatures have been extensively studied using the Cosmic Microwave Background, through constraining the

Externí odkaz: http://arxiv.org/abs/2310.02349

The Halo Boundary of Galaxy Clusters in the SDSS

Autor: Baxter, Eric, Chang, Chihway, Jain, Bhuvnesh, Adhikari, Susmita, Dalal, Neal, Kravtsov, Andrey, More, Surhud, Rozo, Eduardo, Rykoff, Eli, Sheth, Ravi K.

Analytical models and simulations predict a rapid decline in the halo density profile associated with the transition from the "infalling" regime outside the halo to the "collapsed" regime within the halo. Using data from SDSS, we explore evidence for

Externí odkaz: http://hdl.handle.net/10150/624484
http://arizona.openrepository.com/arizona/handle/10150/624484

The Effect of Splashback on Weak Lensing Mass Estimates of Galaxy Clusters and Groups

Autor: Zhang, Yuanyuan, Adhikari, Susmita, Costanzi, Matteo, Frieman, Josh, Annis, Jim, Chang, Chihway

The splashback radius of a dark matter halo, which corresponds to the first apocenter radius reached by infalling matter and substructures, has been detected around galaxy clusters using a multitude of observational methods, including weak lensing me

Externí odkaz: http://arxiv.org/abs/2212.05406

Report of the Topical Group on Dark Energy and Cosmic Acceleration: Complementarity of Probes and New Facilities for Snowmass 2021

Autor: Flaugher, Brenna, Miranda, Vivian, Schlegel, David J., Anderson, Adam J., Andrade-Oliveira, Felipe, Baxter, Eric J., Bender, Amy N., Bleem, Lindsey E., Chang, Chihway, Chang, Clarence C., Chen, Thomas Y., Dawson, Kyle S., Digel, Seth W., Drlica-Wagner, Alex, Ferraro, Simone, Garcia, Alyssa, Heitmann, Katrin, Kim, Alex G., Linder, Eric V., Mandal, Sayan, Mandelbaum, Rachel, Marshall, Phil, Meyers, Joel, Newburgh, Laura, Nugent, Peter E., Palmese, Antonella, Pereira, M. E. S., Sehgal, Neelima, White, Martin, Zhang, Yuanyuan

The mechanism(s) driving the early- and late-time accelerated expansion of the Universe represent one of the most compelling mysteries in fundamental physics today. The path to understanding the causes of early- and late-time acceleration depends on

Externí odkaz: http://arxiv.org/abs/2209.08654

Snowmass2021 Cosmic Frontier: Cosmic Microwave Background Measurements White Paper

Autor: Chang, Clarence L., Huffenberger, Kevin M., Benson, Bradford A., Bianchini, Federico, Chluba, Jens, Delabrouille, Jacques, Flauger, Raphael, Hanany, Shaul, Jones, William C., Kogut, Alan J., McMahon, Jeffrey J., Meyers, Joel, Sehgal, Neelima, Simon, Sara M., Umilta, Caterina, Abazajian, Kevork N., Ahmed, Zeeshan, Akrami, Yashar, Anderson, Adam J., Ansarinejad, Behzad, Austermann, Jason, Baccigalupi, Carlo, Barkats, Denis, Barron, Darcy, Barry, Peter S., Battaglia, Nicholas, Baxter, Eric, Beck, Dominic, Bender, Amy N., Bennett, Charles, Beringue, Benjamin, Bischoff, Colin, Bleem, Lindsey, Bock, James, Bolliet, Boris, Bond, J Richard, Borrill, Julian, Brinckmann, Thejs, Brown, Michael L., Calabrese, Erminia, Carlstrom, John, Challinor, Anthony, Chang, Chihway, Chinone, Yuji, Clark, Susan E., Coulton, William, Cukierman, Ari, Cyr-Racine, Francis-Yan, Duff, Shannon M., Dvorkin, Cora, van Engelen, Alexander, Errard, Josquin, Eskilt, Johannes R., Essinger-Hileman, Thomas, Fabbian, Giulio, Feng, Chang, Ferraro, Simone, Filippini, Jeffrey, Freese, Katherine, Galitzki, Nicholas, Gawiser, Eric, Grin, Daniel, Grohs, Evan, Gruppuso, Alessandro, Gudmundsson, Jon E., Halverson, Nils W., Hamilton, Jean-Christophe, Harrington, Kathleen, Henrot-Versillé, Sophie, Hensley, Brandon, Hill, J. Colin, Hincks, Adam D., Hlozek, Renee, Holzapfel, William, Hotinli, Selim C., Hui, Howard, Ibitoye, Ayodeji, Johnson, Matthew, Johnson, Bradley R., Kang, Jae Hwan, Karkare, Kirit S., Knox, Lloyd, Kovac, John, Lau, Kenny, Legrand, Louis, Loverde, Marilena, Lubin, Philip, Ma, Yin-Zhe, Mroczkowski, Tony, Mukherjee, Suvodip, Münchmeyer, Moritz, Nagai, Daisuke, Nagy, Johanna, Niemack, Michael, Novosad, Valentine, Omori, Yuuki, Orlando, Giorgio, Pan, Zhaodi, Perotto, Laurence, Petroff, Matthew A., Pogosian, Levon, Pryke, Clem, Rahlin, Alexandra, Raveri, Marco, Reichardt, Christian L., Remazeilles, Mathieu, Rephaeli, Yoel, Ruhl, John, Schaan, Emmanuel, Shandera, Sarah, Shimon, Meir, Soliman, Ahmed, Stark, Antony A., Starkman, Glenn D., Stompor, Radek, Thakur, Ritoban Basu, Trendafilova, Cynthia, Tristram, Matthieu, Trivedi, Pranjal, Tucker, Gregory, Di Valentino, Eleonora, Vieira, Joaquin, Vieregg, Abigail, Wang, Gensheng, Watson, Scott, Wenzl, Lukas, Wollack, Edward J., Wu, W. L. Kimmy, Xu, Zhilei, Zegeye, David, Zhang, Cheng

This is a solicited whitepaper for the Snowmass 2021 community planning exercise. The paper focuses on measurements and science with the Cosmic Microwave Background (CMB). The CMB is foundational to our understanding of modern physics and continues t

Externí odkaz: http://arxiv.org/abs/2203.07638