Results 41 to 50 of about 3,356 (111)

Assessing the Impact of Binary Systems on Microlensing Using SPISEA and PopSyCLE Population Simulations

The Astrophysical Journal
Gravitational microlensing provides a unique opportunity to probe the mass distribution of stars, black holes, and other objects in the Milky Way. Population simulations are necessary to interpret results from microlensing surveys.
Natasha S. Abrams, Jessica R. Lu, Casey Y. Lam, Michael S. Medford, Matthew W. Hosek Jr., Sam Rose   +5 more
doaj   +1 more source

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

Optimal Survey Strategies and Predicted Planet Yields for the Korean Microlensing Telescope Network [PDF]

, 2014
The Korean Microlensing Telescope Network (KMTNet) will consist of three 1.6m telescopes each with a 4 deg^{2} field of view (FoV) and will be dedicated to monitoring the Galactic Bulge to detect exoplanets via gravitational microlensing.
Gaudi, B. Scott, Gould, Andrew P., Han, Cheongho, Henderson, Calen B., Nataf, David, Penny, Matthew T., Skowron, Jan   +6 more
core   +3 more sources

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

OGLE-2009-BLG-023/MOA-2009-BLG-028: Characterization of a Binary Microlensing Event Based on Survey Data

, 2011
We report the result of the analysis of the light curve of a caustic-crossing binary-lens microlensing event OGLE-2009-BLG-023/MOA-2009-BLG-028. Even though the event was observed solely by survey experiments, we could uniquely determine the mass of the ...
A. Fukui, A. Gould, A. Korpela, A. Udalski, Alcock, Alcock, An, Bennett, Bennett, Bessel, Bond, C. H. Ling, C. Han, C. S. Botzler, D. J. Sullivan, D. P. Bennett, Dominik, Dominik, Dong, Dong, F. Abe, G. Pietrzyński, Gaudi, Gaudi, Gould, Gould, Gould, Gould, Gould, Griest, Han, Hwang, Hwang, I. A. Bond, I. Soszyński, J. B. Hearnshaw, Jaroszyński, Jaroszyński, Jaroszyński, Jaroszyński, K. Furusawa, K. Kamiya, K. Masuda, K. Ohnishi, K. Ulaczyk, K.-H. Hwang, Kayser, Kervella, Kubas, M. Freeman, M. Jaroszyński, M. K. Szymański, M. Kubiak, Mao, N. J. Rattenbury, N. Miyake, Nemiroff, O. Szewczyk, P. C. M. Yock, P. J. Tristram, P. M. Kilmartin, Paczyński, Pejcha, Refsdal, Ryu, Schneider, Skowron, Smith, Stanek, Stanek, T. Sako, T. Sumi, To. Saito, Udalski, Udalski, W. L. Sweatman, W. Lin, Wambsganss, Witt, Y. C. Perrott, Y. Itow, Y. Matsubara, Y. Muraki, Yoo, Ĺ. Wyrzykowski   +84 more
core   +1 more source

Search for exoplanets in M31 with pixel-lensing and the PA-99-N2 event revisited [PDF]

, 2010
Several exoplanets have been detected towards the Galactic bulge with the microlensing technique. We show that exoplanets in M31 may also be detected with the pixel-lensing method, if telescopes making high cadence observations of an ongoing microlensing
A. Gould, A. Gould, A. Riffesser, A.F. Zakharov, A.P.S. Crotts, Achille Nucita, Alexander Zakharov, D. Kim, E. Kerins, E. Kerins, E.A. Baltz, Francesco De Paolis, G. Covone, G. Ingrosso, G. Ingrosso, G. Ingrosso, Gabriele Ingrosso, H.J. Witt, H.J. Witt, J.H. An, K. Griest, P. Baillon, Philippe Jetzer, R. Ansari, S. Calchi Novati, S. Dong, S. Ida, S. Mao, S. Paulin-Henriksson, S. Tabachnik, S.-J. Chung, Sebastiano Calchi Novati, V. Bozza   +32 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

OGLE-2009-BLG-092/MOA-2009-BLG-137: A Dramatic Repeating Event With the Second Perturbation Predicted by Real-Time Analysis [PDF]

, 2010
We report the result of the analysis of a dramatic repeating gravitational microlensing event OGLE-2009-BLG-092/MOA-2009-BLG-137, for which the light curve is characterized by two distinct peaks with perturbations near both peaks.
A. Allan, A. Cassan, A. Cole, A. Fukui, A. Gal-Yam, A. Gould, A. Korpela, A. Shporer, A. Udalski, Albrow, B. Monard, B. S. Gaudi, Bennett, Bennett, C. H. Ling, C. Han, C. Liebig, C. S. Botzler, C. Snodgrass, C.-U. Lee, Ch. Coutures, D. J. Sullivan, D. L. Depoy, D. M. Bramich, D. Maoz, D. Moorhouse, D. P. Bennett, D. Polishook, D. Ricci, D. Suzuki, Dominik, Dominik, Dominik, Dong, Dong, E. Corrales, Erdl, F. Abe, F. Finet, F. Grundahl, F. Hayashi, F. V. Hessman, F. Zimmer, G. Maier, G. Pietrzyński, G. Scarpetta, G. Thornley, G. W. Christie, Gould, Gould, Han, Han, I. A. Bond, I. Soszyński, I. Steele, J. B. Hearnshaw, J. C. Yee, J. Greenhill, J. McCormick, J. Menzies, J. Skottfelt, J. Southworth, J. Surdej, J. Wambsganss, J.-P. Beaulieu, Jaroszyński, K. Furusawa, K. Harpsøe, K. Horne, K. Kamiya, K. Masuda, K. Nishimoto, K. Ohnishi, K. Ulaczyk, K. Wada, K.-H. Hwang, L. Mancini, L. Skuljan, M. Bos, M. D. Albrow, M. Dominik, M. Glitrup, M. Hundertmark, M. J. Burgdorf, M. K. Szymański, M. Kubiak, M. Mathiasen, N. Kains, N. Miyake, N. Rattenbury, O. Szewczyk, P. Browne, P. C. M. Yock, P. Fouqué, P. J. Tristram, P. M. Kilmartin, Pejcha, R. Poleski, R. Street, R. W. Pogge, Refsdal, S. Brillant, S. Calchi Novati, S. Dieters, S. Dreizler, S. Hosaka, S. Kaspi, S. Makita, S. Rahvar, Schneider, Sumi, T. C. Hinse, T. Sumi, To. Saito, U. G. Jørgensen, Udalski, V. Batista, V. Bozza, W. L. Sweatman, W. Lin, Y. C. Perrott, Y. Itow, Y. Matsubara, Y. Muraki, Y. Shvartzvald, Y. Tsapras, Y.-H. Ryu, Yee, Yoo, Ł. Wyrzykowski   +129 more
core   +3 more sources

Revisiting a Quasar Microlensing Event Towards AGN J1249+3449

Universe
The gravitational wave event GW190521 seems to be the only BH merger event possibly correlated with an electromagnetic counterpart, which appeared about 34 days after the GW event.
Mario Cazzolla, Francesco De Paolis, Antonio Franco, Achille Nucita   +3 more
doaj   +1 more source

An ice giant exoplanet interpretation of the anomaly in microlensing event OGLE-2011-BLG-0173

, 2018
We analyze the microlensing event OGLE-2011-BLG-0173, which shows a small perturbation at the end of the microlensing event caused by the primary lens. We consider both binary lens and binary source models and we explore their degeneracies, some of which
Gaudi, B. S., Kozlowski, S., Pietrukowicz, P., Poleski, R., Skowron, J., Soszynski, I., Szymanski, M. K., Udalski, A., Ulaczyk, K., Wyrzykowski, L.   +9 more
core   +1 more source