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Related papers: Detecting Exoplanets Using Eclipsing Binaries as N…

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The radial velocity technique is currently used to classify transiting objects. While capable of identifying grazing binary eclipses, this technique cannot reliably identify blends, a chance overlap of a faint background eclipsing binary…

Astrophysics · Physics 2009-11-10 B. Tingley

Terrestrial exoplanets in habitable zones are ubiquitous. It is, however, unknown which have Earth-like or Venus-like climates. Distinguishing different planet-types is crucial for determining whether a planet could be habitable. We…

Earth and Planetary Astrophysics · Physics 2023-03-22 Gourav Mahapatra , Fouad Abiad , Loic Rossi , Daphne M. Stam

Imaging of planets is very difficult, due to the glare from their nearby, much brighter suns. Static and slowly-evolving aberrations are the limiting factors, even after application of adaptive optics. The residual speckle pattern is highly…

Astrophysics · Physics 2009-11-13 Erez N. Ribak , Szymon Gladysz

To detect Earth-like planets in the visible with a coronagraphic telescope, two major noise sources have to be overcome: the photon noise of the diffracted star light, and the speckle noise due to the star light scattered by instrumental…

Searches for planets via gravitational lensing have focused on cases in which the projected separation, a, between planet and star is comparable to the Einstein radius, R_E. This paper considers smaller orbital separations and demonstrates…

Solar and Stellar Astrophysics · Physics 2015-06-03 Rosanne Di Stefano

Transit search programs such as CoRoT and Kepler now have the capability of detecting planets as small as the Earth. The detection of these planets however requires the removal of all false positives. Although many false positives can be…

Earth and Planetary Astrophysics · Physics 2015-05-19 Eike W. Guenther , Lev Tal-Or

There are different methods for finding exoplanets such as radial spectral shifts, astrometrical measurements, transits, timing etc. Gravitational microlensing (including pixel-lensing) is among the most promising techniques with the…

Solar and Stellar Astrophysics · Physics 2015-06-18 A. F. Zakharov , G. Ingrosso , F. De Paolis , A. A. Nucita , F. Strafella , S. Calchi Novati , Ph. Jetzer

The characterization of nearby rocky exoplanets will become feasible with the next generation of telescopes, such as the Extremely Large Telescope (ELT) and the mission concept Habitable Worlds Observatory (HWO). Using an improved model…

Earth and Planetary Astrophysics · Physics 2025-08-06 Giulia Roccetti , Michael F. Sterzik , Julia V. Seidel , Claudia Emde , Mihail Manev , Stefano Bagnulo

The Doppler technique measures the reflex radial motion of a star induced by the presence of companions and is the most successful method to detect exoplanets. If several planets are present, their signals will appear combined in the radial…

Astrophysics · Physics 2010-01-06 Guillem Anglada-Escude , Mercedes Lopez-Morales , John E. Chambers

We investigate the spectral appearance of Earth-like exoplanets in the HZ of different main sequence stars at different orbital distances. We furthermore discuss for which of these scenarios biomarker absorption bands may be detected during…

When an exoplanet passes behind its host star, we can measure the time of the occultation, its depth, and its color. In this chapter we describe how these observables can be used to deduce physical characteristics of the planet such as its…

Earth and Planetary Astrophysics · Physics 2018-12-05 Roi Alonso

Long-period transiting exoplanets provide an opportunity to study the mass-radius relation and internal structure of extrasolar planets. Their studies grant insights into planetary evolution akin to the Solar System planets, which, in…

Earth and Planetary Astrophysics · Physics 2009-11-19 Kaspar von Braun , Stephen R. Kane

We exploit high quality photometry from the EVEREST pipeline to evaluate false-positive exoplanet candidates from the K2 mission. We compare the practical capabilities of EVEREST's pixel-level decorrelation scheme to the data analysis…

Earth and Planetary Astrophysics · Physics 2019-01-09 Michael Greklek-McKeon , Drake Deming

Exoplanets, or planets outside our own solar system, have long been of interest to astronomers; however, only in the past two decades have scientists had the technology to characterize and study planets so far away from us. With advanced…

Earth and Planetary Astrophysics · Physics 2018-05-09 Jason Wei

In the last decade, over 7000 eclipsing binaries have been discovered in the Local Group through various variability surveys. Measuring fundamental parameters of these eclipsing binaries has become feasible with 8 meter class telescopes,…

Astrophysics · Physics 2009-02-18 A. Z. Bonanos

Starshade is one of the technologies that will enable the observation and characterization of small planets around nearby stars through direct imaging. The Starshade Exoplanetary Data Challenge (SEDC) was designed to validate…

Instrumentation and Methods for Astrophysics · Physics 2024-10-15 Mario Damiano , Stuart Shaklan , Renyu Hu , Brian Dunne , Angelle Tanner , Aly Nida , Joseph C. Carson , Sergi R. Hildebrandt , Doug Lisman

It is plausible that most of the Stars in the Milky Way (MW) Galaxy, like the Sun, consist of planetary systems, instead of a single planet. Out of the estimately discovered 3,950 planet-hosting stars, about 860 of them are known to be…

Earth and Planetary Astrophysics · Physics 2023-05-31 Hossein Fatheddin , Sedighe Sajadian

Direct imaging of exoplanets is a challenging task due to the small angular distance and high contrast relative to their host star, and the presence of quasi-static noise. We propose a new statistical method for direct imaging of exoplanets…

Instrumentation and Methods for Astrophysics · Physics 2022-10-20 Hazan Daglayan , Simon Vary , Faustine Cantalloube , P. -A. Absil , Olivier Absil

Most extrasolar planets currently known were discovered by means of an indirect method that measures the stellar wobble caused by the planet. We previously studied a triple system composed of a star and a nearby binary on circular coplanar…

Earth and Planetary Astrophysics · Physics 2013-08-09 M. H. M. Morais , A. C. M. Correia