Zobrazeno 1 - 10
of 359
pro vyhledávání: '"HEITMANN, KATRIN"'
Autor:
Moran, Kelly R., Payne, Richard, Lawrence, Earl, Higdon, David, Walsh, Stephen A., Booth, Annie S., Kwan, Juliana, Day, Amber, Habib, Salman, Heitmann, Katrin
The nonlinear matter power spectrum in cosmology describes how matter density fluctuations vary with scale in the universe, providing critical insights into large-scale structure formation. The matter power spectrum includes both smooth regions and h
Externí odkaz:
http://arxiv.org/abs/2411.14747
Autor:
Vitório, Isabele Souza, Buehlmann, Michael, Kovacs, Eve, Larsen, Patricia, Frontiere, Nicholas, Heitmann, Katrin
Halo core tracking is a novel concept designed to efficiently follow halo substructure in large simulations. We have recently developed this concept in gravity-only simulations to investigate the galaxy-halo connection in the context of empirical and
Externí odkaz:
http://arxiv.org/abs/2407.00268
Autor:
Heitmann, Katrin, Uram, Thomas, Frontiere, Nicholas, Habib, Salman, Pope, Adrian, Rizzi, Silvio, Insley, Joe
In this paper we describe the set of ``New Worlds Simulations'', three very large cosmology simulations, Qo'noS, Vulcan, and Ferenginar, that were carried out on the Summit supercomputer with the Hardware/Hybrid Cosmology Code, HACC. The gravity-only
Externí odkaz:
http://arxiv.org/abs/2406.07276
Autor:
Crill, Brendan P., Werner, Michael, Akeson, Rachel, Ashby, Matthew, Bleem, Lindsey, Bock, James J., Bryan, Sean, Burnham, Jill, Byunh, Joyce, Chang, Tzu-Ching, Chiang, Yi-Kuan, Cook, Walter, Cooray, Asantha, Davis, Andrew, Doré, Olivier, Dowell, C. Darren, Dubois-Felsmann, Gregory, Eifler, Tim, Faisst, Andreas, Habib, Salman, Heinrich, Chen, Heitmann, Katrin, Heaton, Grigory, Hirata, Christopher, Hristov, Viktor, Hui, Howard, Jeong, Woong-Seob, Kang, Jae Hwan, Kecman, Branislav, Kirkpatrick, J. Davy, Korngut, Phillip M., Krause, Elisabeth, Lee, Bomee, Lisse, Carey, Masters, Daniel, Mauskopf, Philip, Melnick, Gary, Miyasaka, Hiromasa, Nayyeri, Hooshang, Nguyen, Hien, Öberg, Karin, Padin, Steve, Paladini, Roberta, Pourrahmani, Milad, Pyo, Jeonghyun, Smith, Roger, Song, Yong-Seong, Symons, Teresa, Teplitz, Harry, Tolls, Volker, Unwin, Steve, Windhorst, Rogier, Yang, Yujin, Zemcov, Michael
Publikováno v:
Proceedings Volume 11443, Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave; 114430I (2020)
SPHEREx, the Spectro-Photometer for the History of the Universe, Epoch of Reionization, and ices Explorer, is a NASA MIDEX mission planned for launch in 2024. SPHEREx will carry out the first all-sky spectral survey at wavelengths between 0.75 micron
Externí odkaz:
http://arxiv.org/abs/2404.11017
Autor:
Yamamoto, Masaya, Laliotis, Katherine, Macbeth, Emily, Zhang, Tianqing, Hirata, Christopher M., Troxel, M. A., Cao, Kaili, Choi, Ami, Givans, Jahmour, Heitmann, Katrin, Ishak, Mustapha, Jarvis, Mike, Kovacs, Eve, Long, Heyang, Mandelbaum, Rachel, Park, Andy, Porredon, Anna, Walter, Christopher W., Wood-Vasey, W. Michael
One challenge for applying current weak lensing analysis tools to the Nancy Grace Roman Space Telescope is that individual images will be undersampled. Our companion paper presented an initial application of Imcom - an algorithm that builds an optima
Externí odkaz:
http://arxiv.org/abs/2303.08750
Autor:
Hirata, Christopher M., Yamamoto, Masaya, Laliotis, Katherine, Macbeth, Emily, Troxel, M. A., Zhang, Tianqing, Cao, Kaili, Choi, Ami, Givans, Jahmour, Heitmann, Katrin, Ishak, Mustapha, Jarvis, Mike, Kovacs, Eve, Long, Heyang, Mandelbaum, Rachel, Park, Andy, Porredon, Anna, Walter, Christopher W., Wood-Vasey, W. Michael
The upcoming Nancy Grace Roman Space Telescope will carry out a wide-area survey in the near infrared. A key science objective is the measurement of cosmic structure via weak gravitational lensing. Roman data will be undersampled, which introduces ne
Externí odkaz:
http://arxiv.org/abs/2303.08749
Autor:
Kwan, Juliana, Saito, Shun, Leauthaud, Alexie, Heitmann, Katrin, Habib, Salman, Frontiere, Nicholas, Guo, Hong, Huang, Song, Pope, Adrian, Rodríguez-Torres, Sergio
We construct accurate emulators for the projected and redshift space galaxy correlation functions and excess surface density as measured by galaxy-galaxy lensing, based on Halo Occupation Distribution (HOD) modeling. Using the complete Mira-Titan sui
Externí odkaz:
http://arxiv.org/abs/2302.12379
Autor:
Korytov, Danila, Rangel, Esteban, Bleem, Lindsey, Frontiere, Nicholas, Habib, Salman, Heitmann, Katrin, Hollowed, Joseph, Pope, Adrian
Publikováno v:
Open Journal of Astrophysics 6 (2023)
The galaxy distribution in dark matter-dominated halos is expected to approximately trace the details of the underlying dark matter substructure. In this paper we introduce halo `core-tracking' as a way to efficiently follow the small-scale substruct
Externí odkaz:
http://arxiv.org/abs/2302.04194
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
Autor:
Moran, Kelly R., Heitmann, Katrin, Lawrence, Earl, Habib, Salman, Bingham, Derek, Upadhye, Amol, Kwan, Juliana, Higdon, David, Payne, Richard
Modern cosmological surveys are delivering datasets characterized by unprecedented quality and statistical completeness; this trend is expected to continue into the future as new ground- and space-based surveys come online. In order to maximally extr
Externí odkaz:
http://arxiv.org/abs/2207.12345