Zobrazeno 1 - 10
of 179
pro vyhledávání: '"McFarland, John P"'
We present a method for optimizing the location of the fermion ground-state nodes using a combination of diffusion Monte Carlo (DMC) and projected gradient descent (PGD). A PGD iteration shifts the parameters of an arbitrary node-fixing trial functio
Externí odkaz:
http://arxiv.org/abs/2112.14182
Publikováno v:
J. Phys.: Condens. Matter 33 055903 (2021)
Imaginary-time time-dependent Density functional theory (it-TDDFT) has been proposed as an alternative method for obtaining the ground state within density functional theory (DFT) which avoids some of the difficulties with convergence encountered by
Externí odkaz:
http://arxiv.org/abs/2005.10723
Autor:
Dvornik, Andrej, Cacciato, Marcello, Kuijken, Konrad, Viola, Massimo, Hoekstra, Henk, Nakajima, Reiko, van Uitert, Edo, Brouwer, Margot, Choi, Ami, Erben, Thomas, Conti, Ian Fenech, Farrow, Daniel J., Herbonnet, Ricardo, Heymans, Catherine, Hildebrandt, Hendrik, Hopkins, Andrew. M., McFarland, John, Norberg, Peder, Schneider, Peter, Sifón, Cristóbal, Valentijn, Edwin, Wang, Lingyu
Publikováno v:
MNRAS 468 3251-3265, 2017
We investigate possible signatures of halo assembly bias for spectroscopically selected galaxy groups from the GAMA survey using weak lensing measurements from the spatially overlapping regions of the deeper, high-imaging-quality photometric KiDS sur
Externí odkaz:
http://arxiv.org/abs/1703.06657
Autor:
Brouwer, Margot M., Visser, Manus R., Dvornik, Andrej, Hoekstra, Henk, Kuijken, Konrad, Valentijn, Edwin A., Bilicki, Maciej, Blake, Chris, Brough, Sarah, Buddelmeijer, Hugo, Erben, Thomas, Heymans, Catherine, Hildebrandt, Hendrik, Holwerda, Benne W., Hopkins, Andrew M., Klaes, Dominik, Liske, Jochen, Loveday, Jon, McFarland, John, Nakajima, Reiko, Sifón, Cristóbal, Taylor, Edward N.
Publikováno v:
MNRAS, Volume 466, Issue 3, 21 April 2017, Pages 2547-2559
Verlinde (2016) proposed that the observed excess gravity in galaxies and clusters is the consequence of Emergent Gravity (EG). In this theory the standard gravitational laws are modified on galactic and larger scales due to the displacement of dark
Externí odkaz:
http://arxiv.org/abs/1612.03034
Autor:
Johnson, Andrew, Blake, Chris, Amon, Alexandra, Erben, Thomas, Glazebrook, Karl, Harnois-Deraps, Joachim, Heymans, Catherine, Hildebrandt, Hendrik, Joudaki, Shahab, Klaes, Dominik, Kuijken, Konrad, Lidman, Chris, Marin, Felipe A., McFarland, John, Morrison, Christopher B., Parkinson, David, Poole, Gregory B., Radovich, Mario, Wolf, Christian
We develop a statistical estimator to infer the redshift probability distribution of a photometric sample of galaxies from its angular cross-correlation in redshift bins with an overlapping spectroscopic sample. This estimator is a minimum variance w
Externí odkaz:
http://arxiv.org/abs/1611.07578
Autor:
Joudaki, Shahab, Mead, Alexander, Blake, Chris, Choi, Ami, de Jong, Jelte, Erben, Thomas, Conti, Ian Fenech, Herbonnet, Ricardo, Heymans, Catherine, Hildebrandt, Hendrik, Hoekstra, Henk, Joachimi, Benjamin, Klaes, Dominik, Köhlinger, Fabian, Kuijken, Konrad, McFarland, John, Miller, Lance, Schneider, Peter, Viola, Massimo
We test extensions to the standard cosmological model with weak gravitational lensing tomography using 450 deg$^2$ of imaging data from the Kilo Degree Survey (KiDS). In these extended cosmologies, which include massive neutrinos, nonzero curvature,
Externí odkaz:
http://arxiv.org/abs/1610.04606
Autor:
Brouwer, Margot M., Cacciato, Marcello, Dvornik, Andrej, Eardley, Lizzie, Heymans, Catherine, Hoekstra, Henk, Kuijken, Konrad, McNaught-Roberts, Tamsyn, Sifón, Cristóbal, Viola, Massimo, Alpaslan, Mehmet, Bilicki, Maciej, Bland-Hawthorn, Joss, Brough, Sarah, Choi, Ami, Driver, Simon P., Erben, Thomas, Grado, Aniello, Hildebrandt, Hendrik, Holwerda, Benne W., Hopkins, Andrew M., de Jong, Jelte T. A., Liske, Jochen, McFarland, John, Nakajima, Reiko, Napolitano, Nicola R., Norberg, Peder, Peacock, John A., Radovich, Mario, Robotham, Aaron S. G., Schneider, Peter, Sikkema, Gert, van Uitert, Edo, Kleijn, Gijs Verdoes
Publikováno v:
Monthly Notices of the Royal Astronomical Society 2016 462 (4): 4451-4463
Galaxies and their dark matter haloes are part of a complex network of mass structures, collectively called the cosmic web. Using the tidal tensor prescription these structures can be classified into four cosmic environments: voids, sheets, filaments
Externí odkaz:
http://arxiv.org/abs/1604.07233
The stellar-to-halo mass relation of GAMA galaxies from 100 square degrees of KiDS weak lensing data
Autor:
van Uitert, Edo, Cacciato, Marcello, Hoekstra, Henk, Brouwer, Margot, Sifón, Cristóbal, Viola, Massimo, Baldry, Ivan, Bland-Hawthorn, Joss, Brough, Sarah, Brown, M. J. I., Choi, Ami, Driver, Simon P., Erben, Thomas, Heymans, Catherine, Hildebrandt, Hendrik, Joachimi, Benjamin, Kuijken, Konrad, Liske, Jochen, Loveday, Jon, McFarland, John, Miller, Lance, Nakajima, Reiko, Peacock, John, Radovich, Mario, Robotham, A. S. G., Schneider, Peter, Sikkema, Gert, Taylor, Edward N., Kleijn, Gijs Verdoes
We study the stellar-to-halo mass relation of central galaxies in the range 9.7
Externí odkaz:
http://arxiv.org/abs/1601.06791
Autor:
de Jong, Jelte T. A., Kleijn, Gijs A. Verdoes, Boxhoorn, Danny R., Buddelmeijer, Hugo, Capaccioli, Massimo, Getman, Fedor, Grado, Aniello, Helmich, Ewout, Huang, Zhuoyi, Irisarri, Nancy, Kuijken, Konrad, La Barbera, Francesco, McFarland, John P., Napolitano, Nicola R., Radovich, Mario, Sikkema, Gert, Valentijn, Edwin A., Begeman, Kor G., Brescia, Massimo, Cavuoti, Stefano, Choi, Ami, Cordes, Oliver-Mark, Covone, Giovanni, Dall'Ora, Massimo, Hildebrandt, Hendrik, Longo, Giuseppe, Nakajima, Reiko, Paolillo, Maurizio, Puddu, Emanuella, Rifatto, Agatino, Tortora, Crescenzo, van Uitert, Edo, Buddendiek, Axel, Harnois-Déraps, Joachim, Erben, Thomas, Eriksen, Martin B., Heymans, Catherine, Hoekstra, Henk, Joachimi, Benjamin, Kitching, Thomas D., Klaes, Dominik, Koopmans, Léon V. E., Köhlinger, Fabian, Roy, Nivya, Sifon, Cristóbal, Schneider, Peter, Sutherland, Will J., Viola, Massimo, Vriend, Willem-Jan
Publikováno v:
A&A 582, A62 (2015)
The Kilo-Degree Survey (KiDS) is an optical wide-field imaging survey carried out with the VLT Survey Telescope and the OmegaCAM camera. KiDS will image 1500 square degrees in four filters (ugri), and together with its near-infrared counterpart VIKIN
Externí odkaz:
http://arxiv.org/abs/1507.00742
Autor:
Sifón, Cristóbal, Cacciato, Marcello, Hoekstra, Henk, Brouwer, Margot, van Uitert, Edo, Viola, Massimo, Baldry, Ivan, Brough, Sarah, Brown, Michael J. I., Choi, Ami, Driver, Simon P., Erben, Thomas, Grado, Aniello, Heymans, Catherine, Hildebrandt, Hendrik, Joachimi, Benjamin, de Jong, Jelte T. A., Kuijken, Konrad, McFarland, John, Miller, Lance, Nakajima, Reiko, Napolitano, Nicola, Norberg, Peder, Robotham, Aaron S. G., Schneider, Peter, Kleijn, Gijs Verdoes
We use the first 100 sq. deg. of overlap between the Kilo-Degree Survey (KiDS) and the Galaxy And Mass Assembly (GAMA) survey to determine the galaxy halo mass of ~10,000 spectroscopically-confirmed satellite galaxies in massive ($M > 10^{13}h^{-1}{\
Externí odkaz:
http://arxiv.org/abs/1507.00737