Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Giblin, Benjamin"'
Autor:
Johnston, Harry, Chisari, Nora Elisa, Joudaki, Shahab, Reischke, Robert, Stölzner, Benjamin, Loureiro, Arthur, Mahony, Constance, Unruh, Sandra, Wright, Angus H., Asgari, Marika, Bilicki, Maciej, Burger, Pierre, Dvornik, Andrej, Georgiou, Christos, Giblin, Benjamin, Heymans, Catherine, Hildebrandt, Hendrik, Joachimi, Benjamin, Kuijken, Konrad, Li, Shun-Sheng, Linke, Laila, Porth, Lucas, Shan, HuanYuan, Tröster, Tilman, Busch, Jan Luca van den, von Wietersheim-Kramsta, Maximilian, Yan, Ziang, Zhang, Yun-Hao
We explore the enhanced self-calibration of photometric galaxy redshift distributions, $n(z)$, through the combination of up to six two-point functions. Our $\rm 3\times2pt$ configuration is comprised of photometric shear, spectroscopic galaxy cluste
Externí odkaz:
http://arxiv.org/abs/2409.17377
Autor:
Davies, Christopher T., Harnois-Déraps, Joachim, Li, Baojiu, Giblin, Benjamin, Hernández-Aguayo, César, Paillas, Enrique
It is well established that maximizing the information extracted from upcoming and ongoing stage-IV weak-lensing surveys requires higher-order summary statistics that complement the standard two-point statistics. In this work, we focus on weak-lensin
Externí odkaz:
http://arxiv.org/abs/2406.11958
Autor:
Harnois-Deraps, Joachim, Heydenreich, Sven, Giblin, Benjamin, Martinet, Nicolas, Troester, Tilman, Asgari, Marika, Burger, Pierre, Castro, Tiago, Dolag, Klaus, Heymans, Catherine, Hildebrandt, Hendrik, Joachimi, Benjamin, Wright, Angus H.
We analyse the fourth data release of the Kilo Degree Survey (KiDS-1000) and extract cosmological parameter constraints based on the cosmic shear peak count statistics. Peaks are identified in aperture mass maps in which the filter is maximally sensi
Externí odkaz:
http://arxiv.org/abs/2405.10312
Autor:
Li, Shun-Sheng, Hoekstra, Henk, Kuijken, Konrad, Asgari, Marika, Bilicki, Maciej, Giblin, Benjamin, Heymans, Catherine, Hildebrandt, Hendrik, Joachimi, Benjamin, Miller, Lance, Busch, Jan Luca van den, Wright, Angus H., Kannawadi, Arun, Reischke, Robert, Shan, HuanYuan
We present refined cosmological parameter constraints derived from a cosmic shear analysis of the fourth data release of the Kilo-Degree Survey (KiDS-1000). Our main improvements include enhanced galaxy shape measurements made possible by an updated
Externí odkaz:
http://arxiv.org/abs/2306.11124
Autor:
Robertson, Naomi Clare, Sifón, Cristóbal, Asgari, Marika, Battaglia, Nicholas, Bilicki, Maciej, Bond, J. Richard, Devlin, Mark J., Dunkley, Jo, Giblin, Benjamin, Heymans, Catherine, Hildebrandt, Hendrik, Hilton, Matt, Hoekstra, Henk, Hughes, John P., Kuijken, Konrad, Louis, Thibaut, Mallaby-Kay, Maya, Page, Lyman, Partridge, Bruce, Radovich, Mario, Schneider, Peter, Shan, HuanYuan, Spergel, David N., Tröster, Tilman, Wollack, Edward J., Vargas, Cristian, Wright, Angus H.
We present weak gravitational lensing measurements of a sample of 157 clusters within the Kilo Degree Survey (KiDS), detected with a $>5\sigma$ thermal Sunyaev-Zel'dovich (SZ) signal by the Atacama Cosmology Telescope (ACT). Using a halo-model approa
Externí odkaz:
http://arxiv.org/abs/2304.10219
We quantify the cosmological constraining power of the `lensing PDF' - the one-point probability density of weak lensing convergence maps - by modelling this statistic numerically with an emulator trained on $w$CDM cosmic shear simulations. After val
Externí odkaz:
http://arxiv.org/abs/2211.05708
Autor:
Driver, Simon P., Bellstedt, Sabine, Robotham, Aaron S. G., Baldry, Ivan K., Davies, Luke J., Liske, Jochen, Obreschkow, Danail, Taylor, Edward N., Wright, Angus H., Alpaslan, Mehmet, Bamford, Steven P., Bauer, Amanda E., Bland-Hawthorn, Joss, Bilicki, Maciej, Bravo, Matias, Brough, Sarah, Casura, Sarah, Cluver, Michelle E., Colless, Matthew, Conselice, Christopher J., Croom, Scott M., de Jong, Jelte, D'Eugenio, Franceso, De Propris, Roberto, Dogruel, Burak, Drinkwater, Michael J., Dvornik, Andrej, Farrow, Daniel J., Frenk, Carlos S., Giblin, Benjamin, Graham, Alister W., Grootes, Meiert W., Gunawardhana, Madusha L. P., Hashemizadeh, Abdolhosein, Haussler, Boris, Heymans, Catherine, Hildebrandt, Hendrik, Holwerda, Benne W., Hopkins, Andrew M., Jarrett, Tom H., Jones, D. Heath, Kelvin, Lee S., Koushan, Soheil, Kuijken, Konrad, Lara-Lopez, Maritza A., Lange, Rebecca, Lopez-Sanchez, Angel R., Loveday, Jon, Mahajan, Smriti, Meyer, Martin, Moffett, Amanda J., Napolitano, Nicola R., Norberg, Peder, Owers, Matt S., Radovich, Mario, Raouf, Mojtaba, Peacock, John A., Phillipps, Steven, Pimbblet, Kevin A., Popescu, Cristina, Said, Khaled, Sansom, Anne E., Seibert, Mark, Sutherland, Will J., Thorne, Jessica E., Tuffs, Richard J., Turner, Ryan, van der Wel, Arjen, van Kampen, Eelco, Wilkins, Steve M.
In Galaxy And Mass Assembly Data Release 4 (GAMA DR4), we make available our full spectroscopic redshift sample. This includes 248682 galaxy spectra, and, in combination with earlier surveys, results in 330542 redshifts across five sky regions coveri
Externí odkaz:
http://arxiv.org/abs/2203.08539
Autor:
Davies, Christopher T., Cautun, Marius, Giblin, Benjamin, Li, Baojiu, Harnois-Déraps, Joachim, Cai, Yan-Chuan
Maximising the information that can be extracted from weak lensing measurements is a key goal for upcoming surveys such as LSST and Euclid. This is typically achieved through statistics that are complementary to the cosmic shear two-point correlation
Externí odkaz:
http://arxiv.org/abs/2110.10164
Autor:
Schneider, Peter, Asgari, Marika, Jozani, Yasaman Najafi, Dvornik, Andrej, Giblin, Benjamin, Harnois-D/'eraps, Joachim, Heymans, Catherine, Hildebrandt, Hendrik, Hoekstra, Henk, Kuijken, Konrad, Shan, HuanYuan, Tröster, Tilman, Wright, Angus H.
Publikováno v:
A&A 664, A77 (2022)
One probe for systematic effects in gravitational lensing surveys is the presence of so-called B-modes in the cosmic shear two-point correlation functions \xi_\pm(\vt), since lensing is expected to produce only E-mode shear. Furthermore, there exist
Externí odkaz:
http://arxiv.org/abs/2110.09774
FORGE -- the f(R) gravity cosmic emulator project I: Introduction and matter power spectrum emulator
We present a large suite of cosmological simulations, the FORGE (F-of-R Gravity Emulator) simulation suite, which is designed to build accurate emulators for cosmological observables in galaxy clustering, weak gravitational lensing and galaxy cluster
Externí odkaz:
http://arxiv.org/abs/2109.04984