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The number of extrasolar planets discovered is increasing, so that more than five thousand exoplanets have been confirmed to date. Now we have an opportunity to test the validity of the laws governing planetary systems and take steps to…

地球与行星天体物理 · 物理学 2024-02-29 Mahdiyar Mousavi-Sadr

The Kepler Mission is exploring the diversity of planets and planetary systems. Its legacy will be a catalog of discoveries sufficient for computing planet occurrence rates as a function of size, orbital period, star-type, and insolation…

地球与行星天体物理 · 物理学 2014-09-08 Natalie M. Batalha

With the increasing number of directly imaged giant exoplanets the current atmosphere models are often not capable of fully explaining the spectra and luminosity of the sources. A particularly challenging component of the atmosphere models…

地球与行星天体物理 · 物理学 2015-06-11 Veselin B. Kostov , Dániel Apai

Exoplanets are celestial bodies orbiting stars beyond our Solar System. Although historically they posed detection challenges, Kepler's data has revolutionized our understanding. By analyzing flux values from the Kepler Mission, we…

天体物理仪器与方法 · 物理学 2024-06-13 Maneet Chatterjee , Anuvab Sen , Subhabrata Roy

Mass and radius are two fundamental properties for characterising exoplanets, but only for a relatively small fraction of exoplanets are they both available. Mass is often derived from radial velocity measurements, while the radius is…

地球与行星天体物理 · 物理学 2019-10-09 S. Ulmer-Moll , N. C. Santos , P. Figueira , J. Brinchmann , J. P. Faria

The yield of Earth-like planets will likely be a primary science metric for future space-based missions that will drive telescope aperture size. Maximizing the exoEarth candidate yield is therefore critical to minimizing the required…

The ancestor philosophers' dream of thousands of new worlds is finally realised: about 3500 extrasolar planets have been discovered in the neighborhood of our Sun. Most of them are very different from those we used to know in our Solar…

地球与行星天体物理 · 物理学 2017-08-22 R. Claudi

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…

地球与行星天体物理 · 物理学 2025-08-06 Giulia Roccetti , Michael F. Sterzik , Julia V. Seidel , Claudia Emde , Mihail Manev , Stefano Bagnulo

Determination of an exoplanet's mass is a key to understanding its basic properties, including its potential for supporting life. To date, mass constraints for exoplanets are predominantly based on radial velocity (RV) measurements, which…

地球与行星天体物理 · 物理学 2014-01-27 Julien de Wit , Sara Seager

We present a procedure for calculating expected exoplanet imaging yields, which explicitly separates the effects of instrument performance from assumptions of planet distributions. This `depth of search' approach allows for fast…

天体物理仪器与方法 · 物理学 2017-07-13 Daniel Garrett , Dmitry Savransky , Bruce Macintosh

The expected yield of potentially Earth-like planets is a useful metric for designing future exoplanet-imaging missions. Recent yield studies of direct-imaging missions have focused primarily on yield methods and trade studies using "toy"…

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

Several attempts have been made in the past to assess the expected number of exoplanetary transits that the Gaia space mission will detect. In this Letter we use the updated design of Gaia and its expected performance, and apply recent…

地球与行星天体物理 · 物理学 2015-06-05 Yifat Dzigan , Shay Zucker

The PLATO mission is scheduled for launch in 2026. This study aims to estimate the number of exoplanets that PLATO can detect as a function of planetary size and period, stellar brightness, and observing strategy options. Deviations from…

地球与行星天体物理 · 物理学 2023-07-25 F. Matuszewski , N. Nettelmann , J. Cabrera , A. Börner , H. Rauer

At the dawn of the first discovery of exoplanets orbiting sun-like stars in the mid-1990s, few believed that observations of exoplanet atmospheres would ever be possible. After the 2002 Hubble Space Telescope detection of a transiting…

地球与行星天体物理 · 物理学 2015-05-19 S. Seager , D. Deming

Detecting exoplanet transits at X-ray wavelengths would provide a window into the effects of high energy irradiation on the upper atmospheres of planets. However, stars are relatively dim in the X-ray, making exoplanet transit detections…

地球与行星天体物理 · 物理学 2024-08-14 Raven Cilley , George W. King , Lia Corrales

The Wide Field InfraRed Survey Telescope (WFIRST) is the next NASA astrophysics flagship mission, to follow the James Webb Space Telescope (JWST). The WFIRST mission was chosen as the top-priority large space mission of the 2010 astronomy…

Exoplanet detection in the past decade by efforts including NASA's Kepler and TESS missions has discovered many worlds that differ substantially from planets in our own Solar System, including more than 150 exoplanets orbiting binary or…

地球与行星天体物理 · 物理学 2022-05-03 Zhihui Kong , Jonathan H. Jiang , Remo Burn , Kristen A. Fahy , Zonghong Zhu

I begin this review by first defining what is meant by exoplanet demographics, and then motivating why we would like as broad a picture of exoplanet demographics as possible. I then outline the methodology and pitfalls to measuring…

地球与行星天体物理 · 物理学 2022-03-02 B. Scott Gaudi

Observing extrasolar planetary transits is one of the only ways that we may infer the masses and radii of planets outside the Solar System. As such, the detections made by photometric transit surveys are one of the only foreseeable ways…

天体物理学 · 物理学 2009-11-13 Thomas G. Beatty