Results 11 to 20 of about 2,926,316 (134)

Constraints on compact dark matter from gravitational wave microlensing [PDF]

open access: yes, 2022
If a significant fraction of dark matter is in the form of compact objects, they will cause microlensing effects in the gravitational wave (GW) signals observable by LIGO and Virgo.
Ganguly, A.   +6 more
core   +3 more sources

The new frontiers of gravitational microlensing [PDF]

open access: yes, 2022
Albert Einstein referred to gravitational microlensing as a “most curious effect”, and while its underlying principles are intriguingly simple, their universality makes a powerful tool for inferring information about a wide range of astronomical bodies ...
Dominik, M.
core   +1 more source

Microlensing search for extra solar planets [PDF]

open access: yes, 2015
Gravitational microlensing may be used to probe distant stars for planetary companions. The presence of a planet in the vicinity of a star acting as the lens may cause a short lived anomaly in the observed lightcurve of the lensing event.
Tsapras, Yiannis
core   +2 more sources

Cloud-based e-Infrastructure for scheduling astronomical observations [PDF]

open access: yes, 2015
This research was pursued under the EPSRC grant ‘Working Together: Constraint Programming and Cloud Computing’ (EP/K015745/1) and an Amazon Web Services (AWS) Education Research Grant.Gravitational microlensing exploits a transient phenomenon where an ...
Barker, Adam David   +11 more
core   +1 more source

Microlensing for extrasolar planets : improving the photometry [PDF]

open access: yes, 2013
Gravitational Microlensing, as a technique for detecting Extrasolar Planets, is recognised for its potential in discovering small-mass planets similar to Earth, at a distance of a few Astronomical Units from their host stars.
Bajek, David J.
core   +2 more sources

OGLE 2008–BLG–290 : an accurate measurement of the limb darkening of a galactic bulge K giant spatially resolved by microlensing [PDF]

open access: yes, 2010
Context. Not only is gravitational microlensing a successful tool for discovering distant exoplanets, but it also enables characterization of the lens and source stars involved in the lensing event. Aims.
Riffeser, A.   +562 more
core   +1 more source

Robotic Astronomy with the Faulkes Telescopes and Las Cumbres Observatory Global Telescope

open access: yesAdvances 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

Galactic microlensing : binary-lens light curve morphologies and results from the Rosetta spacecraft bulge survey [PDF]

open access: yes, 2014
For 20 years now, gravitational microlensing observations towards the Galactic bulge have provided us with a wealth of information about the stellar and planetary content of our Galaxy, which is inaccessible via other current methods.
Liebig, Christine Elisabeth
core   +2 more sources

MOA-2010-BLG-311: A planetary candidate below the threshold of reliable detection [PDF]

open access: yes, 2012
peer reviewedWe analyze MOA-2010-BLG-311, a high magnification (A_max>600) microlensing event with complete data coverage over the peak, making it very sensitive to planetary signals.
Southworth, J.   +476 more
core   +1 more source

Microlensing of circumstellar envelopes III. Line profiles from stellar winds in homologous expansion [PDF]

open access: yes, 2006
This paper examines line profile evolution due to the linear expansion of circumstellar material obsverved during a microlensing event. This work extends our previous papers on emission line profile evolution from radial and azimuthal flow during point ...
Bryce, H.M.   +8 more
core   +1 more source

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