Results 71 to 80 of about 5,260 (217)

Pixel lensing: Microlensing towards M31

open access: yes, 2009
Pixel lensing is gravitational microlensing of unresolved stars. The main target explored up to now has been the nearby galaxy of Andromeda, M31. The scientific issues of interest are the search for dark matter in form of compact halo objects, the study ...
Microlensing Towards M   +2 more
core   +1 more source

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

open access: yesThe 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   +3 more
doaj   +1 more source

Precision measurement of a brown dwarf mass in a binary system in the microlensing event

open access: yes, 2022
reservedMicrolensing provides an alternative tool for the discovery and investigation of faint systems. In this thesis, I present the analysis of the microlensing event OGLE-2019-BLG-0033/MOA-2019-BLG-035, which is due to a binary system composed of a ...
HERALD, ANTONY
core  

Systematic KMTNet Planetary Anomaly Search. XIII. Complete Sample of 2021 Prime Field Planets

open access: yesThe Astronomical Journal
The Systematic KMTNet Planetary Anomaly Search series was conducted using the KMTNet data archived from 2016–2019. From this first phase of the series, we reported a total of 50 planetary systems hidden in the data archive, which represent about 35% of ...
In-Gu Shin   +44 more
doaj   +1 more source

Microlensing Events in Five Years of Photometry from the Zwicky Transient Facility

open access: yesThe Astrophysical Journal
Microlensing has a unique advantage for detecting dark objects in the Milky Way, such as free-floating planets, neutron stars, and stellar-mass black holes.
Ruocheng Zhai   +7 more
doaj   +1 more source

Shape optimization of microlenses

open access: yesOptics Express, 2015
Microlenses are highly attractive for optical applications such as super resolution and photonic nanojets, but their design is more demanding than the one of larger lenses because resonance effects play an important role, which forces one to perform a full wave analysis.
A, Paganini   +3 more
openaire   +2 more sources

Gravitational Microlensing

open access: yes, 2011
International audienceGravitational 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 ...
Moniez, M.   +3 more
core   +1 more source

Korea Microlensing Telescope Network Microlensing Events from 2015: Event-finding Algorithm, Vetting, and Photometry [PDF]

open access: yes, 2018
We present microlensing events in the 2015 Korea Microlensing Telescope Network (KMTNet) data and our procedure for identifying these events. In particular, candidates were detected with a novel “completed-event” microlensing event-finder algorithm.
Lee, Y.   +19 more
core   +2 more sources

Galactic microlensing by acoustic Schwarzschild black holes

open access: yesEuropean Physical Journal C: Particles and Fields
This work explores the application of acoustic black holes as a novel class of lenses in Galactic microlensing, potentially representing dark matter halo objects.
Gulnaz F. Akhtaryanova   +3 more
doaj   +1 more source

Microlensing timescales and flux magnification probabilities of a sample of 204 lensed quasars

open access: yesAstronomy & Astrophysics
Context. Quasar microlensing is a very useful tool in cosmology and astrophysics, as well as a source of uncertainty in certain investigations, such as the determination of the Hubble constant from lensed quasars.
Ávila-Vera F., Motta V., Mediavilla E.
doaj   +1 more source

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