Results 31 to 40 of about 2,663 (150)
Advances in Astronomy, Volume 2014, Issue 1, 2014., 2014 The perturbation caused by planet‐moon binarity on the time‐of‐arrival (TOA) signal of a pulsar with an orbiting planet is derived for the case of the orbit of the planet‐moon system inclined of an angle α with respect to the plane of the orbit of the planet‐moon barycenter around the pulsar.
Antonio Pasqua +2 more
wiley +1 more source
Robotic Astronomy with the Faulkes Telescopes and Las Cumbres Observatory Global Telescope
Advances in Astronomy, Volume 2010, Issue 1, 2010., 2010 We present results from ongoing science projects conducted by members of the Faulkes Telescope (FT) team and Las Cumbres Observatory Global Telescope (LCOGT). Many of these projects incorporate observations carried out and analysed by FT users, comprising amateur astronomers and schools.
Fraser Lewis +5 more
wiley +1 more source
KMT-2022-BLG-2397: Brown Dwarf at the Upper Shore of the Einstein Desert
The Astronomical Journal, 2023 We measure the Einstein radius of the single-lens microlensing event KMT-2022-BLG-2397 to be θ _E = 24.8 ± 3.6 μ as, placing it at the upper shore of the Einstein Desert, 9 ≲ θ _E / μ as ≲ 25, between free-floating planets (FFPs) and bulge brown dwarfs ...
Andrew Gould +20 more
doaj +1 more source
Ogle-2018-blg-0677lb: A super earth near the galactic bulge [PDF]
, 2020 We report the analysis of the microlensing event OGLE-2018-BLG-0677. A small feature in the light curve of the event leads to the discovery that the lens is a star-planet system. Although there are two degenerate solutions that could not be distinguished
Albrow, M. D. +32 more
core +2 more sources
ARTEMiS (Automated Robotic Terrestrial Exoplanet Microlensing Search): a possible expert-system based cooperative effort to hunt for planets of Earth mass and below [PDF]
, 2008 The technique of gravitational microlensing is currently unique in its ability to provide a sample of terrestrial exoplanets around both Galactic disk and bulge stars, allowing to measure their abundance and determine their distribution with respect to ...
Martin Dominik +15 more
semanticscholar +1 more source
Fast computation of quadrupole and hexadecapole approximations in microlensing with a single point-source evaluation [PDF]
, 2017 The exoplanet detection rate from gravitational microlensing has grown significantly in recent years thanks to a great enhancement of resources and improved observational strategy.
A. Cassan
semanticscholar +1 more source
Exoplanet Detection Techniques [PDF]
, 2014 We are still in the early days of exoplanet discovery. Astronomers are beginning to model the atmospheres and interiors of exoplanets and have developed a deeper understanding of processes of planet formation and evolution.
Fischer, Debra A. +6 more
core +3 more sources
OGLE-2016-BLG-1195 AO: Lens, Companion to Lens or Source, or None of the Above?
The Astronomical Journal, 2023 We systematically investigate Vandorou et al.’s claim to have detected the host star of the low-mass-ratio ( q < 10 ^−4 ) microlensing planet OGLE-2016-BLG-1195Lb, via Keck adaptive optics (AO) measurements Δ t = 4.12 yr after the event’s peak ( t _0 ...
Andrew Gould +6 more
doaj +1 more source
The Astronomical Journal, 2023 Wavelets are waveform functions that describe transient and unstable variations, such as noise. In this work, we study the advantages of discrete and continuous wavelet transforms (DWTs and CWTs) of microlensing data to denoise them and extract their ...
Sedighe Sajadian, Hossein Fatheddin
doaj +1 more source
Microlensing path parametrization for Earth-like Exoplanet detection around solar mass stars
, 2018 We propose a new parametrization of the impact parameter u0 and impact angle {\alpha} for microlensing systems composed by an Earth-like Exoplanet around a Solar mass Star at 1 AU.
de Almeida, L., Nascimento Jr, J. -D. do
core +2 more sources