Results 1 to 10 of about 298,399 (212)

Constraining Cosmology with Machine Learning and Galaxy Clustering: The CAMELS-SAM Suite [PDF]

The Astrophysical Journal, 2023
As the next generation of large galaxy surveys come online, it is becoming increasingly important to develop and understand the machine-learning tools that analyze big astronomical data.
Lucia A. Perez, Shy Genel, Francisco Villaescusa-Navarro, Rachel S. Somerville, Austen Gabrielpillai, Daniel Anglés-Alcázar, Benjamin D. Wandelt, L. Y. Aaron Yung   +7 more
doaj   +2 more sources

Dark matter in astrophysics/cosmology [PDF]

SciPost Physics Lecture Notes, 2022
These lecture notes aim to provide an introduction to dark matter from the perspective of astrophysics/cosmology. We start with a rapid overview of cosmology, including the evolution of the Universe, its thermal history and structure formation.
Anne M. Green
doaj   +3 more sources

Overview of the ESCAPE Dark Matter Test Science Project for astronomers [version 2; peer review: 1 approved, 2 approved with reservations, 1 not approved] [PDF]

Open Research Europe
The search for dark matter has been ongoing for decades within both astrophysics and particle physics. Both fields have employed different approaches and conceived a variety of methods for constraining the properties of dark matter, but have done so in ...
Hugh Dickinson, James Pearson, Stephen Serjeant, Sukanya Sinha   +3 more
doaj   +2 more sources

Unveiling the evolution of rotating black holes in loop quantum cosmology [PDF]

Scientific Reports
In this work, we aim to discuss about the evolution of rotating black holes (RBHs) within the context of loop quantum cosmology. Here, the main part of our research work focuses on the impacts of angular momentum based rotating parameter and accretion ...
Suryakanta Swain, Gourishankar Sahoo, Bibekananda Nayak   +2 more
doaj   +2 more sources

Astrophysical Tests of Kinematical Conformal Cosmology in Fourth-Order Conformal Weyl Gravity [PDF]

Galaxies, 2014
In this work we analyze kinematical conformal cosmology (KCC), an alternative cosmological model based on conformal Weyl gravity (CG), and test it against current type Ia supernova (SNIa) luminosity data and other astrophysical observations.
Gabriele U. Varieschi
doaj   +5 more sources

Dark Energy Survey Year 6 Results: Photometric Dataset for Cosmology

The Astrophysical Journal Supplement Series
We describe the photometric dataset assembled from the full 6 yr of observations by the Dark Energy Survey (DES) in support of static-sky cosmology analyses.
K. Bechtol, I. Sevilla-Noarbe, A. Drlica-Wagner, B. Yanny, R. A. Gruendl, E. Sheldon, E. S. Rykoff, J. De Vicente, M. Adamow, D. Anbajagane, M. R. Becker, G. M. Bernstein, A. Carnero Rosell, J. Gschwend, M. Gorsuch, W. G. Hartley, M. Jarvis, T. Jeltema, R. Kron, T. A. Manning, J. O’Donnell, A. Pieres, M. Rodríguez-Monroy, D. Sanchez Cid, M. Tabbutt, C. Y. Tan, L. Toribio San Cipriano, D. L. Tucker, N. Weaverdyck, M. Yamamoto, T. M. C. Abbott, M. Aguena, A. Alarcón, S. Allam, A. Amon, F. Andrade-Oliveira, S. Avila, P. H. Bernardinelli, E. Bertin, J. Blazek, D. Brooks, D. L. Burke, J. Carretero, F. J. Castander, R. Cawthon, C. Chang, A. Choi, C. Conselice, M. Costanzi, M. Crocce, L. N. da Costa, T. M. Davis, S. Desai, H. T. Diehl, S. Dodelson, P. Doel, C. Doux, A. Ferté, B. Flaugher, P. Fosalba, J. Frieman, J. García-Bellido, M. Gatti, E. Gaztanaga, G. Giannini, D. Gruen, G. Gutierrez, K. Herner, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. Huterer, N. Jeffrey, E. Krause, K. Kuehn, O. Lahav, S. Lee, C. Lidman, M. Lima, H. Lin, J. L. Marshall, J. Mena-Fernández, R. Miquel, J. J. Mohr, J. Muir, J. Myles, R. L. C. Ogando, A. Palmese, A. A. Plazas Malagón, A. Porredon, J. Prat, M. Raveri, A. K. Romer, A. Roodman, S. Samuroff, E. Sanchez, V. Scarpine, M. Smith, M. Soares-Santos, E. Suchyta, G. Tarle, M. A. Troxel, V. Vikram, A. R. Walker, J. Weller, P. Wiseman, Y. Zhang, (DES Collaboration)   +107 more
doaj   +2 more sources

Precision cosmology with primordial GW backgrounds in presence of astrophysical foregrounds [PDF]

Journal of Cosmology and Astroparticle Physics, 2022
The era of Gravitational-Wave (GW) astronomy will grant the detection of the astrophysical GW background from unresolved mergers of binary black holes, and the prospect of probing the presence of primordial GW backgrounds.
Davide Racco, D. Poletti
semanticscholar   +1 more source

Water Silhouettes against the Cosmic Microwave Background from the Most Distant Starburst Galaxies [PDF]

EPJ Web of Conferences, 2022
Astrophysical objects can imprint distortions on the observed Cosmic Microwave Background (CMB) that give access to information for cosmology research that cannot be obtained otherwise. ΛCDM cosmology implies a linear scaling of the CMB temperature (TCMB)
Riechers Dominik A., Weiss Axel, Walter Fabian, Carilli Christopher L., Cox Pierre, Decarli Roberto, Neri Roberto   +6 more
doaj   +1 more source

The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters [PDF]

Astrophysical Journal, 2023
We present cosmological constraints from a gravitational lensing mass map covering 9400 deg2 reconstructed from measurements of the cosmic microwave background (CMB) made by the Atacama Cosmology Telescope (ACT) from 2017 to 2021.
M. Madhavacheril, F. Qu, B. Sherwin, N. MacCrann, Yaqiong Li, I. Abril-Cabezas, P. Ade, S. Aiola, T. Alford, M. Amiri, S. Amodeo, R. An, Z. Atkins, J. Austermann, N. Battaglia, E. Battistelli, J. Beall, R. Bean, B. Beringue, Tanay Bhandarkar, E. Biermann, B. Bolliet, J. Bond, Hongbo Cai, E. Calabrese, V. Calafut, V. Capalbo, Felipe Carrero, A. Challinor, G. Chesmore, Hsiao-mei Cho, Steve K. Choi, S. Clark, Rodrigo C'ordova Rosado, N. Cothard, K. Coughlin, W. Coulton, K. Crowley, R. Dalal, O. Darwish, M. Devlin, S. Dicker, P. Doze, C. Duell, S. Duff, A. Duivenvoorden, J. Dunkley, R. Dunner, V. Fanfani, M. Fankhanel, Gerrit S Farren, S. Ferraro, R. Freundt, Brittany Fuzia, P. Gallardo, X. Garrido, J. Givans, V. Gluscevic, J. Golec, Y. Guan, K. Hall, M. Halpern, Dongwon Han, I. Harrison, M. Hasselfield, E. Healy, Shawn W. Henderson, B. Hensley, C. Herv'ias-Caimapo, J. Hill, G. Hilton, M. Hilton, A. Hincks, R. Hlovzek, S. Ho, Z. Huber, J. Hubmayr, K. Huffenberger, J. Hughes, K. Irwin, G. Isopi, H. Jense, B. Keller, Joshua Kim, K. Knowles, B. Koopman, A. Kosowsky, D. Kramer, A. Kusiak, Adrien La Posta, Alex Lague, Victoria Lakey, Eunseong Lee, Zack Li, M. Limon, M. Lokken, T. Louis, M. Lungu, A. MacInnis, Diego Maldonado, F. Maldonado, M. Mallaby-Kay, G. Marques, J. McMahon, Yogesh Mehta, F. Menanteau, K. Moodley, Thomas W. Morris, T. Mroczkowski, S. Naess, T. Namikawa, F. Nati, L. Newburgh, A. Nicola, M. Niemack, M. Nolta, J. Orlowski-Scherer, L. Page, Shivam Pandey, B. Partridge, H. Prince, R. Puddu, F. Radiconi, N. Robertson, F. Rojas, T. Sakuma, M. Salatino, E. Schaan, B. Schmitt, N. Sehgal, S. Shaikh, C. Sierra, J. Sievers, C. Sif'on, S. Simon, R. Sonka, D. Spergel, S. Staggs, E. Storer, E. Switzer, Niklas Tampier, R. Thornton, H. Trac, J. Treu, C. Tucker, Joel Ulluom, L. Vale, A. V. Engelen, J. Lanen, J. V. Marrewijk, C. Vargas, E. Vavagiakis, K. Wagoner, Yuhan Wang, L. Wenzl, Edward J. Wollack, Zhilei Xu, Fernando Zago, Kaiwen Zhang   +158 more
semanticscholar   +1 more source

Swift: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications [PDF]

Monthly notices of the Royal Astronomical Society, 2023
Numerical simulations have become one of the key tools used by theorists in all the fields of astrophysics and cosmology. The development of modern tools that target the largest existing computing systems and exploit state-of-the-art numerical methods ...
M. Schaller, Josh Borrow, P. Draper, Mladen Ivkovic, S. McAlpine, B. Vandenbroucke, Y. Bahé, Evgenii Chaikin, A. B. G. Chalk, T. K. Chan, Camila A Correa, M. V. Daalen, W. Elbers, P. Gonnet, L. Hausammann, J. Helly, F. Huško, J. Kegerreis, F. Nobels, S. Ploeckinger, Y. Revaz, W. Roper, S. Ruiz-Bonilla, T. D. Sandnes, Yolan Uyttenhove, James S. Willis, Zhen Xiang   +26 more
semanticscholar   +1 more source