The spitzer microlensing program as a probe for globular cluster planets: analysis of OGLE-2015-BLG-0448
Article
Article Title | The spitzer microlensing program as a probe for globular cluster planets: analysis of OGLE-2015-BLG-0448 |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Poleski, Radoslaw (Author), Zhu, Wei (Author), Christie, Grant W. (Author), Udalski, Andrzej (Author), Gould, Andrew (Author), Bachelet, Etienne (Author), Skottfelt, Jesper (Author), Calchi Novati, Sebastiano (Author), Szymanski, M. K. (Author), Soszynski, L. (Author), Pietrzynski, G. (Author), Wyrzykowski, L. (Author), Ulaczyk, K. (Author), Pietrukowicz, P. (Author), Kozlowski, Szymon (Author), Skowron, J. (Author), Mroz, P. (Author), Pawlak, M. (Author), Beichman, C. (Author), Bryden, G. (Author), Carey, S. (Author), Fausnaugh, M. (Author), Gaudi, B. S. (Author), Henderson, C. B. (Author), Pogge, R. W. (Author), Shvartzvald, Y. (Author), Wibking, B. (Author), Yee, J. C. (Author), Beatty, T. G. (Author), Eastman, J. D. (Author), Drummond, J. (Author), Friedmann, M. (Author), Henderson, M. (Author), Johnson, J. A. (Author), Kaspi, S. (Author), Maoz, D. (Author), McCormick, J. (Author), McCrady, N. (Author), Natusch, T. (Author), Ngan, H. (Author), Porritt, I. (Author), Relles, H. M. (Author), Sliski, D. H. (Author), Tan, T.-G. (Author), Wittenmyer, R. A. (Author), Wright, J. T. (Author), Street, R. A. (Author), Tsapras, Y. (Author), Bramich, D. M. (Author), Horne, K. (Author), Snodgrass, C. (Author), Steele, I. A. (Author), Menzies, J. (Author), Figuera Jaimes, R. (Author), Wambsganss, J. (Author), Schmidt, R. (Author), Cassan, A. (Author), Ranc, C. (Author), Mao, S. (Author), Bozza, V. (Author), Dominik, M. (Author), Hundertmark, M. P. G. (Author), Jorgensen, U. G. (Author), Andersen, M. I. (Author), Burgdorf, M. J. (Author), Ciceri, S. (Author), D’Ago, G. (Author), Evans, D. F. (Author), Gu, S.-H. (Author), Hinse, T. C. (Author), Kains, N. (Author), Kerins, E. (Author), Korhonen, H. (Author), Kuffmeier, M. (Author), Mancini, L. (Author), Popovas, A. (Author), Rabus, M. (Author), Rahvar, S. (Author), Rasmussen, R. T. (Author), Scarpetta, G. (Author), Southworth, J. (Author), Surdej, J. (Author), Unda-Sanzana, E. (Author), Verma, P. (Author), von Essen, C. (Author), Wang, Y.-B. (Author) and Wertz, O. (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 823 (1) |
Article Number | 63 |
Number of Pages | 11 |
Year | 2016 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-637X |
1538-4357 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/0004-637X/823/1/63 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/0004-637X/823/1/63 |
Abstract | The microlensing event OGLE-2015-BLG-0448 was observed by Spitzer and lay within the tidal radius of the globular cluster NGC 6558. The event had moderate magnification and was intensively observed, hence it had the potential to probe the distribution of planets in globular clusters. We measure the proper motion of NGC 6558 (mcl (N, E) = (+0.36 +/- 0.10, +1.42 +/- 0.10) mas yr-1) as well as the source and show that the lens is not a cluster member. Even though this particular event does not probe the distribution of planets in globular clusters, other potential cluster lens events can be verified using our methodology. Additionally, we find that microlens parallax measured using Optical Gravitational Lens Experiment (OGLE) photometry is consistent with the value found based on the light curve displacement between the Earth and Spitzer. |
Keywords | globular clusters; NGC6558; gravitational lensing; planets and satellites detection; proper motions |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | For access to this article, please click on the URL link provided. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | Ohio State University, United States |
Stardome Observatory, New Zealand | |
University of Warsaw, Poland | |
Las Cumbres Observatory, United States | |
Open University, United Kingdom | |
California Institute of Technology (Caltech), United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Pennsylvania State University, United States | |
Possum Observatory, New Zealand | |
Tel Aviv University, Israel | |
University of Montana, United States | |
University of Copenhagen, Denmark | |
Centre for Backyard Astrophysics, New Zealand | |
Turitea Observatory, New Zealand | |
National Aeronautics and Space Administration (NASA), United States | |
Perth Exoplanet Survey Telescope Observatory, Australia | |
University of New South Wales | |
Heidelberg University, Germany | |
Hamad Bin Khalifa University, Qatar | |
University of St Andrews, United Kingdom | |
Liverpool John Moores University, United Kingdom | |
South African Astronomical Observatory, South Africa | |
Sorbonne University, France | |
Chinese Academy of Sciences, China | |
University of Salerno, Italy | |
University of Hamburg, Germany | |
Max Planck Society, Germany | |
Keele University, United Kingdom | |
Korea Astronomy and Space Science Institute, Korea | |
University of Manchester, United Kingdom | |
Finnish Centre for Astronomy with ESO (FINCA), Finland | |
Pontifical Catholic University of Chile, Chile | |
Sharif University of Technology, Iran | |
Aarhus University, Denmark | |
University of Liege, Belgium | |
University of Antofagasta, Chile | |
International Institute for Advanced Scientific Studies, Italy |
https://research.usq.edu.au/item/q3x86/the-spitzer-microlensing-program-as-a-probe-for-globular-cluster-planets-analysis-of-ogle-2015-blg-0448
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