7 results on '"de Jong, Jelte T. A."'
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2. KiDS-SQuaD
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Khramtsov, Vladislav, primary, Sergeyev, Alexey, additional, Spiniello, Chiara, additional, Tortora, Crescenzo, additional, Napolitano, Nicola R., additional, Agnello, Adriano, additional, Getman, Fedor, additional, de Jong, Jelte T. A., additional, Kuijken, Konrad, additional, Radovich, Mario, additional, Shan, HuanYuan, additional, and Shulga, Valery, additional
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- 2019
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3. KiDS+VIKING-450: A new combined optical and near-infrared dataset for cosmology and astrophysics
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Wright, Angus H., primary, Hildebrandt, Hendrik, additional, Kuijken, Konrad, additional, Erben, Thomas, additional, Blake, Robert, additional, Buddelmeijer, Hugo, additional, Choi, Ami, additional, Cross, Nicholas, additional, de Jong, Jelte T. A., additional, Edge, Alastair, additional, Gonzalez-Fernandez, Carlos, additional, González Solares, Eduardo, additional, Grado, Aniello, additional, Heymans, Catherine, additional, Irwin, Mike, additional, Kupcu Yoldas, Aybuke, additional, Lewis, James R., additional, Mann, Robert G., additional, Napolitano, Nicola, additional, Radovich, Mario, additional, Schneider, Peter, additional, Sifón, Cristóbal, additional, Sutherland, William, additional, Sutorius, Eckhard, additional, and Verdoes Kleijn, Gijs A., additional
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- 2019
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4. The third data release of the Kilo-Degree Survey and associated data products
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de Jong, Jelte T. A., primary, Kleijn, Gijs A. Verdoes, additional, Erben, Thomas, additional, Hildebrandt, Hendrik, additional, Kuijken, Konrad, additional, Sikkema, Gert, additional, Brescia, Massimo, additional, Bilicki, Maciej, additional, Napolitano, Nicola R., additional, Amaro, Valeria, additional, Begeman, Kor G., additional, Boxhoorn, Danny R., additional, Buddelmeijer, Hugo, additional, Cavuoti, Stefano, additional, Getman, Fedor, additional, Grado, Aniello, additional, Helmich, Ewout, additional, Huang, Zhuoyi, additional, Irisarri, Nancy, additional, La Barbera, Francesco, additional, Longo, Giuseppe, additional, McFarland, John P., additional, Nakajima, Reiko, additional, Paolillo, Maurizio, additional, Puddu, Emanuella, additional, Radovich, Mario, additional, Rifatto, Agatino, additional, Tortora, Crescenzo, additional, Valentijn, Edwin A., additional, Vellucci, Civita, additional, Vriend, Willem-Jan, additional, Amon, Alexandra, additional, Blake, Chris, additional, Choi, Ami, additional, Conti, Ian Fenech, additional, Gwyn, Stephen D. J., additional, Herbonnet, Ricardo, additional, Heymans, Catherine, additional, Hoekstra, Henk, additional, Klaes, Dominik, additional, Merten, Julian, additional, Miller, Lance, additional, Schneider, Peter, additional, and Viola, Massimo, additional
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- 2017
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5. MACHOs in M 31? Absence of evidence but not evidence of absence
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de Jong, Jelte T. A., Widrow, Lawrence M., Cseresnjes, Patrick, Kuijken, Konrad, Crotts, Arlin P. S., Bergier, Alexander, Baltz, Edward A., Gyuk, Geza, Sackett, Penny D., Uglesich, Robert R., Sutherland, Will J., collaboration, the MEGA, Kapteyn Astronomical Institute, and Astronomy
- Subjects
Andromeda Galaxy ,gravitational lensing ,Extinction (astronomy) ,FOS: Physical sciences ,BULGE-HALO MODELS ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,Gravitational microlensing ,dark matter ,POINT-AGAPE SURVEY ,law.invention ,ANDROMEDA GALAXY ,galaxies : individual : M 31 ,law ,Bulge ,DARK-MATTER ,Astrophysics::Galaxy Astrophysics ,CANDIDATES ,Physics ,OPTICAL DEPTH ,Newtonian telescope ,Astrophysics (astro-ph) ,M31 ,REALISTIC MICROLENSING MODELS ,Astronomy and Astrophysics ,Galaxy ,Andromeda ,EVENT ,Space and Planetary Science ,Astrophysics::Earth and Planetary Astrophysics ,Halo ,STARS - Abstract
We present results of a microlensing survey toward the Andromeda Galaxy (M31) carried out during four observing seasons at the Isaac Newton Telescope (INT). This survey is part of the larger microlensing survey toward M31 performed by the Microlensing Exploration of the Galaxy and Andromeda (MEGA) collaboration. Using a fully automated search algorithm, we indentify 14 candidate microlensing events, three of which are reported here for the first time. Observations obtained at the Mayall telescope are combined with the INT data to produce composite lightcurves for these candidates. The results from the survey are compared with theoretical predictions for the number and distribution of events. These predictions are based on a Monte Carlo calculation of the detection efficiency and disk-bulge-halo models for M31. The models provide the full phase-space distribution functions for the lens and source populations and are motivated by dynamical and observational considerations. They include differential extinction and span a wide range of parameter space characterised primarily by the mass-to-light ratios for the disk and bulge. For most models, the observed event rate is consistent with the rate predicted for self-lensing -- a MACHO halo fraction of 30% or higher can be ruled at the 95% confidence level. The event distribution does show a large near-far asymmetry hinting at a halo contribution to the microlensing signal. Two candidate events are located at particularly large projected radii on the far side of the disk. These events are difficult to explain by self lensing and only somewhat easier to explain by MACHO lensing. A possibility is that one of these is due to a lens in a giant stellar stream., 38 pages, 48 figures, high-resolution pdf available at http://www.astro.columbia.edu/~arlin/astro-ph/0507286.pdf, several textual changes, accepted for publication in Astronomy and Astrophysics
- Published
- 2006
6. The first and second data releases of the Kilo-Degree Survey
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de Jong, Jelte T. A., primary, Verdoes Kleijn, Gijs A., additional, Boxhoorn, Danny R., additional, Buddelmeijer, Hugo, additional, Capaccioli, Massimo, additional, Getman, Fedor, additional, Grado, Aniello, additional, Helmich, Ewout, additional, Huang, Zhuoyi, additional, Irisarri, Nancy, additional, Kuijken, Konrad, additional, La Barbera, Francesco, additional, McFarland, John P., additional, Napolitano, Nicola R., additional, Radovich, Mario, additional, Sikkema, Gert, additional, Valentijn, Edwin A., additional, Begeman, Kor G., additional, Brescia, Massimo, additional, Cavuoti, Stefano, additional, Choi, Ami, additional, Cordes, Oliver-Mark, additional, Covone, Giovanni, additional, Dall’Ora, Massimo, additional, Hildebrandt, Hendrik, additional, Longo, Giuseppe, additional, Nakajima, Reiko, additional, Paolillo, Maurizio, additional, Puddu, Emanuella, additional, Rifatto, Agatino, additional, Tortora, Crescenzo, additional, van Uitert, Edo, additional, Buddendiek, Axel, additional, Harnois-Déraps, Joachim, additional, Erben, Thomas, additional, Eriksen, Martin B., additional, Heymans, Catherine, additional, Hoekstra, Henk, additional, Joachimi, Benjamin, additional, Kitching, Thomas D., additional, Klaes, Dominik, additional, Koopmans, Léon V. E., additional, Köhlinger, Fabian, additional, Roy, Nivya, additional, Sifón, Cristóbal, additional, Schneider, Peter, additional, Sutherland, Will J., additional, Viola, Massimo, additional, and Vriend, Willem-Jan, additional
- Published
- 2015
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7. KiDS-SQuaD
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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, and Shulga, Valery
- Full Text
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