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Related papers: Secure Identification of Free-Floating Planets

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A microlensing lensing zone refers to the range of planet-star separations where the probability of detecting a planetary signal is high. Its conventional definition as the range between $\sim 0.6$ and 1.6 Einstein radii of the primary lens…

Astrophysics · Physics 2011-02-11 Cheongho Han

A space-based gravitational microlensing exoplanet survey will provide a statistical census of exoplanets with masses greater than 0.1 Earth-masses and orbital separations ranging from 0.5AU to infinity. This includes analogs to all the…

Chang-Refsdal (C-R) lensing, which refers to the gravitational lensing of a point mass perturbed by a constant external shear, provides a good approximation in describing lensing behaviors of either a very wide or a very close binary lens.…

Earth and Planetary Astrophysics · Physics 2017-02-01 Cheongho Han , In-Gu Shin , Youn Kil Jung

Microlensing has recently proven to be a valuable tool to search for extrasolar planets of Neptune- to super-Earth-mass planets at orbits of few AU. Since planetary signals are of very short duration, an intense and continuous monitoring is…

Astrophysics · Physics 2007-05-23 A. Cassan , D. Kubas

Microlensing events are now regularly being detected by monitoring the flux of a large number of potential sources and measuring the combined magnification of the images. This phenomenon could also be detected directly from the…

Astrophysics · Physics 2009-10-28 Jordi Miralda-Escude

In this paper, we show that the pattern of microlensing light curve anomalies induced by multiple planets are well described by the superposition of those of the single-planet systems where the individual planet-primary binary pairs act as…

Astrophysics · Physics 2009-11-06 Cheongho Han , Heon-Young Chang , Jin H. An , Kyongae Chang

We show that exoplanets in the M31 galaxy may be detected with the pixel-lensing method by using telescopes making high cadence observations of an ongoing microlensing event. Although the mean mass for detectable exoplanets is about $2…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-14 G. Ingrosso , F. De Paolis , S. Calchi Novati , Ph. Jetzer , A. A. Nucita , A. F. Zakharov

The Wide Field Infrared Survey Telescope (WFIRST) is expected to detect hundreds of free-floating planets, but it will not be able to measure their masses. However, simultaneous microlensing observations by both Euclid and WFIRST…

Earth and Planetary Astrophysics · Physics 2019-08-14 Etienne Bachelet , Matthew Penny

Microlensing is the method of exoplanet detection that discovers solar system analog exoplanets. These are planets low in mass located in wide orbits around their host stars. Even though thousands of exoplanets are discovered, they are…

Earth and Planetary Astrophysics · Physics 2025-05-19 Aparna Bhattacharya

Terrestrial planets may be detected using the gravitational microlensing technique. This was demonstrated in the high magnification event MACHO-98-BLG-35. Observing strategies aimed at measuring the abundance of terrestrial planets are…

Astrophysics · Physics 2007-05-23 Philip Yock

We present a conceptual design for a space based Galactic Exoplanet Survey Telescope (GEST) which will use the gravitational microlensing technique to detect extra solar planets with masses as low as that of Mars at all separations >~ 1 AU.…

Astrophysics · Physics 2007-05-23 David P. Bennett , Sun Hong Rhie

Planets reflect and linearly polarize the radiation that they receive from their host stars. The emergent polarization is sensitive to aspects of the planet atmosphere such as the gas composition and the occurrence of condensates and their…

Earth and Planetary Astrophysics · Physics 2018-02-28 Antonio García Muñoz

In this paper, we review the various ways in which an infrared stellar interferometer can be used to perform direct detection of extrasolar planetary systems. We first review the techniques based on classical stellar interferometry, where…

Instrumentation and Methods for Astrophysics · Physics 2015-03-17 O. Absil

The discovery of extra-solar planets is arguably the most exciting development in astrophysics during the past 15 years, rivalled only by the detection of dark energy. Two projects unite the communities of exoplanet scientists and…

Earth and Planetary Astrophysics · Physics 2015-06-15 J. P. Beaulieu , P. Tisserand , V. Batista

The next generation of high-contrast imaging instruments will provide the first unresolved image of an extrasolar planet. While the emitted infrared light from the planet in thermal equilibrium should show almost no phase effect, the…

Astrophysics · Physics 2009-11-11 L. Arnold , J. Schneider

Recently Sahu et al., using the Hubble Space Telescope to monitor stars in the direction of the old globular cluster M22, detected six events in which otherwise constant stars brightened by ~50% during a time of <1 day. They tentatively…

Astrophysics · Physics 2009-11-07 B. Scott Gaudi

Hundreds of gravitational microlensing events have now been detected towards the Galactic bulge, with many more to come. The detection of fine structure in these events has been theorized to be an excellent way to discover extra-solar…

Astrophysics · Physics 2010-04-06 Kim Griest , Neda Safizadeh

We evaluate gravitational lensing as a technique for the detection of extrasolar moons. Since 2004 gravitational microlensing has been successfully applied as a detection method for extrasolar planets. In principle, the method is sensitive…

Earth and Planetary Astrophysics · Physics 2014-11-20 Christine Liebig , Joachim Wambsganss

Many ground-based photometric surveys are now under way, and five of them have been successful at detecting transiting exoplanets. Nevertheless, detecting transiting planets has turned out to be much more challenging than initially…

Astrophysics · Physics 2007-05-23 Frederic Pont , the ISSI Working Group on Transiting Planets

The successful prediction of lensing events is a new and exciting enterprise that provides opportunities to discover and study planetary systems. The companion paper investigates the underlying theory. This paper is devoted to outlining the…

Earth and Planetary Astrophysics · Physics 2012-02-27 Rosanne Di Stefano , James Matthews , Sebastien Lepine
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