Zobrazeno 1 - 10
of 74
pro vyhledávání: '"De Jong, Jelte T. A."'
Autor:
Nagam, Bharath Chowdhary, Koopmans, Léon V. E., Valentijn, Edwin A., Kleijn, Gijs Verdoes, de Jong, Jelte T. A., Napolitano, Nicola, Li, Rui, Tortora, Crescenzo
Convolutional neural networks (CNNs) are the state-of-the-art technique for identifying strong gravitational lenses. Although they are highly successful in recovering genuine lens systems with a high true-positive rate, the unbalanced nature of the d
Externí odkaz:
http://arxiv.org/abs/2311.08184
Autor:
Georgiou, Christos, Hoekstra, Henk, Kuijken, Konrad, Bilicki, Maciej, Dvornik, Andrej, Erben, Thomas, Giblin, Benjamin, Heymans, Catherine, Hildebrandt, Hendrik, de Jong, Jelte T. A., Kannawadi, Arun, Schneider, Peter, Schrabback, Tim, Shan, HuanYuan, Wright, Angus H.
Publikováno v:
A&A 647, A185 (2021)
We present measurements of $f_h$, the ratio of the aligned components of the projected halo and galaxy ellipticities, for a sample of central galaxies using weak gravitational lensing data from the Kilo-Degree Survey (KiDS). Using a lens galaxy shape
Externí odkaz:
http://arxiv.org/abs/2102.03549
Autor:
George, Koshy, Vassallo, Thomas, Mohr, Joseph, Mirkazemi, Mohammad, Israel, Holger, de Jong, Jelte T. A., Kleijn, Gijs A. Verdoes
The calibration of ground based optical imaging data to photometric accuracy of 10 mmag over the full survey area and to color uniformity better than 5 mmag on the scale of the VIS focal plane is a key science requirement for the Euclid mission. Thes
Externí odkaz:
http://arxiv.org/abs/2001.03987
Autor:
Khramtsov, Vladislav, Sergeyev, Alexey, Spiniello, Chiara, Tortora, Crescenzo, Napolitano, Nicola R., Agnello, Adriano, Getman, Fedor, de Jong, Jelte T. A., Kuijken, Konrad, Radovich, Mario, Shan, HuanYuan, Shulga, Valery
Publikováno v:
A&A 632, A56 (2019)
The KiDS Strongly lensed QUAsar Detection project (KiDS-SQuaD) aims at finding as many previously undiscovered gravitational lensed quasars as possible in the Kilo Degree Survey. This is the second paper of this series where we present a new, automat
Externí odkaz:
http://arxiv.org/abs/1906.01638
Akademický článek
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Autor:
Wright, Angus H., Hildebrandt, Hendrik, Kuijken, Konrad, Erben, Thomas, Blake, Robert, Buddelmeijer, Hugo, Choi, Ami, Cross, Nicholas, de Jong, Jelte T. A., Edge, Alastair, Gonzalez-Fernandez, Carlos, Solares, Eduardo González, Grado, Aniello, Heymans, Catherine, Irwin, Mike, Yoldas, Aybuke Kupcu, Lewis, James R., Mann, Robert G., Napolitano, Nicola, Radovich, Mario, Schneider, Peter, Sifón, Cristóbal, Sutherland, William, Sutorius, Eckhard, Kleijn, Gijs A. Verdoes
Publikováno v:
A&A 632, A34 (2019)
We present the curation and verification of a new combined optical and near infrared dataset for cosmology and astrophysics, derived from the combination of $ugri$-band imaging from the Kilo Degree Survey (KiDS) and $ZY\!J\!H\!K_{\rm s}$-band imaging
Externí odkaz:
http://arxiv.org/abs/1812.06077
Autor:
Amaro, Valeria, Cavuoti, Stefano, Brescia, Massimo, Vellucci, Civita, Longo, Giuseppe, Bilicki, Maciej, de Jong, Jelte T. A., Tortora, Crescenzo, Radovich, Mario, Napolitano, Nicola R., Buddelmeijer, Hugo
Despite the high accuracy of photometric redshifts (zphot) derived using Machine Learning (ML) methods, the quantification of errors through reliable and accurate Probability Density Functions (PDFs) is still an open problem. First, because it is dif
Externí odkaz:
http://arxiv.org/abs/1810.09777
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
Autor:
Cavuoti, Stefano, Brescia, Massimo, Tortora, Crescenzo, Longo, Giuseppe, Napolitano, Nicola R., Radovich, Mario, La Barbera, Francesco, Capaccioli, Massimo, de Jong, Jelte T. A., Getman, Fedor, Grado, Aniello, Paolillo, Maurizio
Publikováno v:
Monthly Notices of the Royal Astronomical Society 2015 452 (3): 3100-3105
We estimated photometric redshifts (zphot) for more than 1.1 million galaxies of the ESO Public Kilo-Degree Survey (KiDS) Data Release 2. KiDS is an optical wide-field imaging survey carried out with the VLT Survey Telescope (VST) and the OmegaCAM ca
Externí odkaz:
http://arxiv.org/abs/1507.00754
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