Results 11 to 20 of about 351 (182)
Strong Gravitational Lensing and Microlensing of Supernovae. [PDF]
Space Sci RevAbstractStrong gravitational lensing and microlensing of supernovae (SNe) are emerging as a new probe of cosmology and astrophysics in recent years. We provide an overview of this nascent research field, starting with a summary of the first discoveries of strongly lensed SNe. We describe the use of the time delays between multiple SN images as a way to
Suyu SH +4 more
europepmc +5 more sources
GRAVITATIONAL MICROLENSING IN THE LOCAL GROUP [PDF]
Annual Review of Astronomy and Astrophysics, 1996 ▪ Abstract The status of searches for gravitational microlensing events of the stars in our galaxy and in other galaxies of the Local Group, the interpretation of the results, some theory, and prospects for the future are reviewed. The searches have already unveiled ∼ 100 events, at least two of them caused by binaries, and have already proven to be ...
Bohdan Paczynski
exaly +3 more sources
Signals, 2022 In this work, we provide a compressive sensing architecture for implementing on a space based observatory for detecting transient photometric parallax caused by gravitational microlensing events.
Richard Barry
exaly +3 more sources
Higher order corrections in gravitational microlensing [PDF]
Physics Letters, Section A: General, Atomic and Solid State Physics, 1999 We show that, in cosmological microlensing, corrections of order $v/c \sim Δλ/λ$, to the deflection angle of light beams from a distant source are not negligible and that all microlensing quantities should be corrected up to this order independently of the cosmological model used.
Salvatore Capozziello +2 more
exaly +5 more sources
Gravitational wave detection through microlensing? [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 It is shown that accurate photometric observations of a relatively high--magnification microlensing event ($A\gg 1$), occurring close to the line of sight of a gravitational wave (GW) source, represented by a binary star, can allow the detection of subtle gravitational effects.
Roberto Ragazzoni, Ragazzoni Roberto
exaly +3 more sources
New Constraints on Quasar Broad Absorption and Emission Line Regions from Gravitational Microlensing
Frontiers in Astronomy and Space Sciences, 2017 Gravitational microlensing is a powerful tool allowing one to probe the structure of quasars on sub-parsec scale. We report recent results, focusing on the broad absorption and emission line regions.
D Sluse, T Anguita, Sluse Dominique
exaly +3 more sources
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.
doaj +1 more source
Gravitational microlensing and the galactic halo [PDF]
Physical Review D, 1996 By means of extensive galactic modeling we study the implications of the more than eighty microlensing events that have now been observed for the composition of the dark halo of the Galaxy, as well as for other properties of the Galaxy. We take the Galaxy to be comprised of luminous and dark disk components, a bulge, and a dark halo consisting of both ...
Gates, Evalyn I. +2 more
openaire +3 more sources
Magnetic Manipulation of Superparamagnetic Colloids in Droplet‐Based Optical Devices
Advanced Optical Materials, Volume 11, Issue 21, November 6, 2023., 2023 Colloidal particles inside droplets are assembled and manipulated using an external magnetic field to create magnetically controlled active microlenses and optical shutters. Using monodisperse microfluidic droplets, the assembly of particles into 2D clusters is systematically investigated and exploited to manipulate light.
Iacopo Mattich +7 more
wiley +1 more source
Gravitational Microlensing [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractGravitational microlensing is a well established and unique field of time-domain astrophysics. For two decades microlensing surveys have been regularly observing millions of stars to detect elusive events that follow a characteristic Paczyński lightcurve.
Wyrzykowski, Ł. +3 more
openaire +2 more sources