Results 31 to 40 of about 3,374 (103)

Interpretation of Strong Short-Term Central Perturbations in the Light Curves of Moderate-Magnification Microlensing Events [PDF]

, 2009
To improve the planet detection efficiency, current planetary microlensing experiments are focused on high-magnification events searching for planetary signals near the peak of lensing light curves.
A. Allan, A. Cassan, A. Fukui, A. Gould, A. Korpela, A. Udalski, A. Williams, Albrow, and M. Zub, B. S. Gaudi, B.-G. Park, C. H. Ling, C. Han, C. S. Botzler, C. Snodgrass, C.-U. Lee, Chung, D. D. Prester, D. Kim, D. Kubas, D. L. DePoy, D. M. Bramich, D. P. Bennett, D. S. Sullivan, Dominik, Dong, Dong, E. Corrales, F. Abe, G. Pietrzyński, G. W. Christie, Ghosh, Gould, Gould, Gould, H. Calitz, Han, Han, Han, I. A. Bond, I. Soszyński, I. Steele, J. A. R. Caldwell, J. B. Hearnshaw, J. B. Marquette, J. Donatowicz, J. Greenhill, J. McCormick, J. Menzies, J. P. Beaulieu, J. Wambsganss, K. C. Sahu, K. Furusawa, K. Hill, K. Horne, K. Kamiya, K. Masuda, K. Ohnishi, K. R. Pollard, K. Ulaczyk, K.-H. Hwang, L. A. B. Monard, L. Skuljan, M. Bode, M. Burgdorf, M. D. Albrow, M. Dominik, M. Hoffman, M. K. Szymański, M. Kubiak, M. Nagaya, N. Kains, N. Miyake, N. Rattenbury, O. Szewczyk, P. C. M. Yock, P. Fouque, P. J. Tristram, P. M. Kilmartin, P. Meintjes, Park, Pejcha, R. Martin, R. Street, R. W. Pogge, S. Brillant, S. Dieters, S. Dong, T. Natusch, T. Sako, T. Sumi, T. Tokumura, To. Saito, U. G. Jørgensen, Udalski, V. Batista, W. Allen, W. L. Sweatman, W. Lin, Y. C. Perrott, Y. Itow, Y. Matsubara, Y. Muraki, Y. Tsapras, Yoo, Ł. Wyrzykowski   +105 more
core   +3 more sources

Modeling Binary Lenses and Sources with the BAGLE Python Package

The Astrophysical Journal
Gravitational microlensing is a powerful tool that can be used to find and measure the mass of isolated and dark compact objects. In many microlensing events, the lens, the source, or both may be binary systems.
T. Dex Bhadra, J. R. Lu, Natasha S. Abrams, Andrew Scharf, Edward Broadberry, Casey Lam, Macy J. Huston   +6 more
doaj   +1 more source

Detection Rates for Close Binaries Via Microlensing [PDF]

, 1996
Microlensing is one of the most promising methods of reconstructing the stellar mass function down to masses even below the hydrogen-burning limit. The fundamental limit to this technique is the presence of unresolved binaries, which can in principle ...
Andrew Gould, Aubourg E., B. Scott Gaudi, Kroupa P., Refsdal S., Witt H.   +5 more
core   +3 more sources

microJAX: A Differentiable Framework for Microlensing Modeling with GPU-accelerated Image-centered Ray Shooting

The Astrophysical Journal
We introduce microJAX , the first fully differentiable implementation of the image-centered ray shooting algorithm for gravitational microlensing. Built on JAX and its XLA just-in-time compiler, microJAX exploits GPU parallelism while providing exact ...
Shota Miyazaki, Hajime Kawahara
doaj   +1 more source

Periodic Signals in Binary Microlensing Events

, 2015
Gravitational microlensing events are powerful tools for the study of stellar populations. In particular, they can be used to discover and study a variety of binary systems.
Di Stefano, Rosanne, Esin, Ann, Guo, Xinyi, Taylor, Jeffrey   +3 more
core   +1 more source

Observations of the Binary Microlens Event MACHO-98-SMC-1 by the Microlensing Planet Search Collaboration

, 1998
We present the observations of the binary lensing event MACHO-98-SMC-1 conducted at the Mt.~Stromlo 74" telescope by the Microlensing Planet Search (MPS) collaboration.
A. C. Becker, Afonso C., B. A. Peterson, B. R. Johnson, Becker A. C., Bennett D., Bennett D., Bertelli G., Binney J., D. P. Bennett, Diaz-Cordoves J., Diaz-Cordoves J., Honma M., J. Quinn, L. J. King, P. C. Fragile, Palanque-Delabrouille N., S. H. Rhie, Sahu K. C., Udalski A., Udalski A.   +20 more
core   +2 more sources

MACHO 96-LMC-2: Lensing of a Binary Source in the LMC and Constraints on the Lensing Object

, 2000
We present photometry and analysis of the microlensing alert MACHO 96-LMC-2. The ~3% photometry provided by the Global Microlensing Alert Network follow--up effort reveals a periodic modulation in the lightcurve.
A. B. Tomaney, A. C. Becker, A. J. Drake, Afonso C., B. A. Peterson, Becker A., C. A. Nelson, C. Alcock, C. W. Stubbs, D. Minniti, D. P. Bennett, D. R. Alves, D. Welch, Derue F., Dominik M., K. C. Freeman, K. Griest, K. H. Cook, M. Geha, M. J. Lehner, M. R. Pratt, P. J. Quinn, P. Popowski, R. A. Allsman, S. L. Marshall, Schwering P. B. W., T. S. Axelrod, T. Vandehei, W. Sutherland   +28 more
core   +1 more source

MOA-2010-BLG-328: Keck and HST Expose the Limits of Occams Razor in Microlensing

The Astronomical Journal
We present high-resolution follow-up data of the microlensing event MOA-2010-BLG-328, using Keck and the Hubble Space Telescope. Keck data, taken 8 yr after the event, reveal a strong lens detection enabling measurement of lens flux and source-lens ...
Aikaterini Vandorou, David P. Bennett, Jean-Philippe Beaulieu, Aparna Bhattacharya, Joshua W. Blackman, Ian A. Bond, Andrew A. Cole, Naoki Koshimoto, Clément Ranc, Natalia E. Rektsini, Sean K. Terry   +10 more
doaj   +1 more source

Evolutionary algorithm-based analysis of gravitational microlensing lightcurves

, 2012
A new algorithm developed to perform autonomous fitting of gravitational microlensing lightcurves is presented. The new algorithm is conceptually simple, versatile and robust, and parallelises trivially; it combines features of extant evolutionary ...
Asada, Beaulieu, Bennett, Bennett, Bennett, Bourassa, Bozza, Burnham, Cassan, Charbonneau, Charbonneau, Di Stefano, Dominik, Dominik, Eiben, Gaudi, Gaudi, Gaudi, Gould, Gregory, Haario, Haupt, Heavens, Holland, Hundertmark, Jaroszyński, Kains, King, Kramer, Lagarias, Mao, Mao, Michalewicz, Michalewicz, Miller, Moré, Nelder, Night, Pospichal, Press, Quanz, Rajpaul, Ralston, Risco-Martín, Shin, Shvartzvald, Skowron, Sumi, Sumi, Thierens, Udalski, V. Rajpaul, Vermaak, Vermaak, Wambsganss, Wehrens, Witt   +56 more
core   +1 more source

Lens Masses and Distances from Microlens Parallax and Flux

, 2015
I present a novel method for measuring lens masses for microlensing events. By combining a measured lens flux with the microlens parallax vector pi_E, it is possible to derive the mass of the lens system without knowing the angular size of the Einstein ...
Yee, Jennifer C.
core   +1 more source