Results 41 to 50 of about 135 (115)
Where are the binary source galactic microlensing events?
, 1998 Though there have been some galactic microlensing events which show a clear signature of a binary lens, no event has yet been claimed as due to lensing of a binary source. Here I argue that this may be due to the fact that most of the binary source events show light curves which can be fitted with the simpler model of a blended single source.
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Twinkle: A GPU-based Binary-lens Microlensing Code with the Contour Integration Method
The Astrophysical Journal Supplement SeriesWith the rapidly increasing rate of microlensing planet detections, microlensing modeling software faces significant challenges in computation efficiency.
Suwei Wang, Lile Wang, Subo Dong
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A Close Binary Lens Revealed by the Microlensing Event Gaia20bof
The Astronomical JournalDuring the last 25 yr, hundreds of binary stars and planets have been discovered toward the Galactic bulge by microlensing surveys. Thanks to a new generation of large-sky surveys, it is now possible to regularly detect microlensing events across the ...
E. Bachelet +27 more
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OGLE-2017-BLG-0448Lb: A Low Mass–Ratio Wide-orbit Microlensing Planet?
The Astronomical JournalThe gravitational microlensing technique is most sensitive to planets in a Jupiter-like orbit and has detected more than 200 planets. However, only a few wide-orbit ( s > 2) microlensing planets have been discovered, where s is the planet-to-host ...
Ruocheng Zhai +44 more
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Planetary Microlensing Perturbations: True Planets or Binary Sources?
, 1997 21 pages, 4 embedded figures, TeX, uses ...
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MOA-2010-BLG-328: Keck and HST Expose the Limits of Occams Razor in Microlensing
The Astronomical JournalWe 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 +10 more
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Frontiers in Astronomy and Space SciencesThere are several methods for indirectly detecting exoplanets, such as transit, radial velocity, astrometry, and the conventional gravitational microlensing approach.
Fatemeh Bagheri +4 more
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The Astrophysical Journal, 2005 Currently, gravitational microlensing survey experiments toward the Galactic bulge field utilize two different methods of minimizing blending effect for the accurate determination of the optical depth τ. One is measuring τbased on clump giant (CG) source stars and the other is using `Difference Image Analysis (DIA)' photometry to measure the unblended ...
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Unveiling MOA-2007-BLG-192: An M Dwarf Hosting a Likely Super-Earth
The Astronomical JournalWe present an analysis of high-angular-resolution images of the microlensing target MOA-2007-BLG-192 using Keck adaptive optics and the Hubble Space Telescope.
Sean K. Terry +17 more
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