Results 81 to 90 of about 2,926,316 (134)

Exoplanet Searches with Gravitational Microlensing

, 2013
There are different methods for finding exoplanets such as radial spectral shifts, astrometrical measurements, transits, timing etc. Gravitational microlensing (including pixel-lensing) is among the most promising techniques with the potentiality of ...
STRAFELLA, Francesco, P.h. Jetzer, A. F. Zakharov, S. Calchi Novati, INGROSSO, Gabriele, DE PAOLIS, Francesco, NUCITA, Achille   +6 more
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Simulations of gravitational microlensing [PDF]

, 2011
Gravitational microlensing occurs when a massive lens (typically a star) deflects light from a more distant source, creating two unresolvable images that are magnified.
Mao, Shude, Penny, Matthew Thomas, Kerins, Eamonn   +2 more
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Exoplanet Occurrence Rates from Microlensing Surveys [PDF]

The number of exoplanets detected using gravitational microlensing technique is currently larger than 200, which enables population studies. Microlensing is uniquely sensitive to low-mass planets orbiting at separations of several astronomical units, a ...
Mroz, P., Poleski, R.
core   +1 more source

Simulating Gravitational Microlensing Events by TESS: Predictions on Statistics and Properties

The Astronomical Journal
We study the statistics and properties of microlensing events that can be detected by the Transiting Exoplanet Survey Satellite (TESS) based on Monte Carlo simulations. We simulate potential microlensing events from a sample of TESS Candidate Target List
Sedighe Sajadian, Atousa Kalantari, Hossein Fatheddin, Somayeh Khakpash   +3 more
doaj   +1 more source

OGLE-2016-BLG-1195Lb: A Sub-Neptune Beyond the Snow Line of an M-dwarf Confirmed by Keck Adaptive Optics

The Astronomical Journal
We present the analysis of high-resolution follow-up observations of OGLE-2016-BLG-1195 using Laser Guide Star Adaptive Optics with Keck, seven years after the event’s peak.
Aikaterini Vandorou, Lisa Dang, David P. Bennett, Naoki Koshimoto, Sean K. Terry, Andrzej Udalski, Jean-Philippe Beaulieu, Christophe Alard, Aparna Bhattacharya, Joshua W. Blackman, Ian A. Bond, Tarik Bouchoutrouch-Ku, Andrew A. Cole, Nicolas B. Cowan, Jean-Baptiste Marquette, Clément Ranc, Natalia E. Rektsini, Sylvain Cetre, Jim Lyke, Eduardo Marin, Peter Wizinowich   +20 more
doaj   +1 more source

The Habitability of the Galactic Bulge. [PDF]

Life (Basel), 2020
Balbi A, Hami M, Kovačević A.
europepmc   +1 more source

The Brown-dwarf Desert Persists as a Mass-ratio Desert around Low-mass Stars

The Astrophysical Journal Letters
Sun-like stars are known to host a paucity of brown-dwarf companions at close separations. Direct imaging surveys of intermediate-mass stars have suggested that the brown-dwarf desert may be fundamentally a feature in the mass ratio. Microlensing surveys
Keming Zhang
doaj   +1 more source

Gravitational Microlensing of Extended Objects [PDF]

, 1998
Gravitational microlensing is an important tool in the search for Galactic dark matter. This thesis investigates how microlensing can be used to infer astrophysically interesting information about the structure of extended objects, as well as the ...
Coleman, Iain James
core   +1 more source

Evolution of novel activation functions in neural network training for astronomy data: habitability classification of exoplanets. [PDF]

Eur Phys J Spec Top, 2020
Saha S, Nagaraj N, Mathur A, Yedida R, H R S.   +4 more
europepmc   +1 more source

Gravitational lensing and microlensing

, 2002
This book provides a comprehensive and self-contained exposition of gravitational lensing phenomena. It presents the up-to-date status of gravitational lensing and microlensing, covering the cosmological applications of the observed lensing by galaxies ...
Roulet, Esteban, Mollerach, Silvia
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