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Physics Reports, 1997 Microlensing observations have now become a useful tool in searching for non--luminous astrophysical compact objects (brown dwarfs, faint stars, neutron stars, black holes and even planets). Originally conceived for establishing whether the halo of the Galaxy is composed of this type of objects, the ongoing searches are actually also sensitive to the ...
Esteban Roulet
exaly +3 more sources
Microlensing Searches for Exoplanets
Geosciences, 2018 Gravitational microlensing finds planets through their gravitational influence on the light coming from a more distant background star. The presence of the planet is then inferred from the tell-tale brightness variations of the background star during the
Yiannis Tsapras
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Studies of relativistic effects with radioastron space mission [PDF]
Serbian Astronomical Journal, 2007 In the review we discuss possible studies of GR phenomena such as gravitational microlensing and shadow analysis with the forthcoming RadioAstron space mission.
Zakharov A.F.
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Monthly Notices of the Royal Astronomical Society: Letters, 2010 Abstract A nearby star having a near-transit of a galaxy will cause a time-dependent weak lensing of the galaxy. Because the effect is small, we refer to this as weak microlensing. This could provide a useful method to weigh low-mass stars and brown dwarfs.
Coles, J, Saha, P, Schmid, H M
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60 Microlensing Events from the Three Years of Zwicky Transient Facility Phase One
The Astrophysical Journal, 2023 Microlensing events have historically been discovered throughout the Galactic bulge and plane by surveys designed solely for that purpose. We conduct the first multiyear search for microlensing events on the Zwicky Transient Facility (ZTF), an all-sky ...
Michael S. Medford +4 more
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Discerning Parallax Amplitude in Astrometric Microlensing
The Astronomical Journal, 2023 Gravitational microlensing is a powerful method for discovering isolated stellar-mass black holes (ISMBHs). These objects make long-duration microlensing events.
Sedighe Sajadian +2 more
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The Astronomical Journal, 2023 A microlensing event is mainly used to search for free-floating planets (FFPs). To estimate the FFP mass and distance via the microlensing effect, a microlensing parallax is one of the key parameters.
M. Ban
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Cosmological Microlensing [PDF]
Proceedings of The Manchester Microlensing Conference: The 12th International Conference and ANGLES Microlensing Workshop — PoS(GMC8), 2008 Variability in gravitationally lensed quasars can be due to intrinsic fluctuations of the quasar or due to ``microlensing'' by compact objects along the line of sight. If disentangled from each other, microlens-induced variability can be used to study two cosmological issues of great interest, the size and brightness profile of quasars on one hand, and
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Microlensing neutron stars [PDF]
Astronomy & Astrophysics, 2002 We investigate the chances that neutron stars act as the lense in a gravitational microlensing event towards the galactic bulge or a spiral arm. The observation of neutron stars by means of gravitational microlensing would allow the estimation of neutron star masses independently of the property of being a pulsar in a binary system.
Schwarz, Dominik, Seidel, D
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Monthly Notices of the Royal Astronomical Society, 2010 We investigate the possibilities that pulsars act as the lens in gravitational microlensing events towards the galactic bulge or a spiral arm. Our estimation is based on expectant survey and observations of FAST (Five hundred meter Aperture Spherical Telescope) and SKA (Square Kilometer Array), and two different models of pulsar distribution are used ...
S. Dai, R. X. Xu, A. Esamdin
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