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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. However, we have…

Earth and Planetary Astrophysics · Physics 2015-05-28 Debra A. Fischer , Andrew W. Howard , Greg P. Laughlin , Bruce Macintosh , Suvrath Mahadevan , Johannes Sahlmann , Jennifer C. Yee

Wide Field Survey Telescope (WFST), with a powerful sky survey capability in the northern hemisphere, will play an important role in asteroid searching and monitoring. However, WFST is not a telescope dedicated to near-Earth asteroids…

Earth and Planetary Astrophysics · Physics 2025-02-21 Jun-Qiang Lu , Lu-Lu Fan , Min-Xuan Cai , Shao-Han Wang , Bing-Xue Fu , Xu Kong , Qing-Feng Zhu

We provide an example of an analysis to explore the optimization of observations of transiting hot jupiters with JWST to characterize their atmospheres, based on a simple three-parameter forward model. We construct expansive forward model…

Earth and Planetary Astrophysics · Physics 2017-01-25 Alex R. Howe , Adam Burrows , Drake Deming

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…

Instrumentation and Methods for Astrophysics · Physics 2017-07-13 Daniel Garrett , Dmitry Savransky , Bruce Macintosh

Precise exoplanet characterization requires precise classification of exoplanet host stars. The masses of host stars are commonly estimated by comparing their spectra to those predicted by stellar evolution models. However,…

Solar and Stellar Astrophysics · Physics 2015-06-12 Benjamin T. Montet , John Asher Johnson

We perform high fidelity simulations of a wide-field telescopic survey searching for Near-Earth Objects (NEO) larger than 140\,m, focusing on the observational and detection model, detection efficiency and accuracy. As a test survey we…

Earth and Planetary Astrophysics · Physics 2017-06-30 Peter Vereš , Steven R. Chesley

We analyze photometric observations of stars, which experienced microlensing events at the considered time, in order to compare the efficiency of detecting exoplanets in observations performed at thirteen different telescopes and with…

Earth and Planetary Astrophysics · Physics 2025-09-24 S. I. Ipatov

Today's most detailed characterization of exoplanet atmospheres is accessible via transit spectroscopy (TS). Detecting transiting exoplanets only yields their size, and it is thus standard to measure a planet's mass before moving towards…

Earth and Planetary Astrophysics · Physics 2025-10-01 Julien de Wit , Sara Seager , Prajwal Niraula

Direct imaging and spectroscopy is the likely means by which we will someday identify, confirm, and characterize an Earth-like planet around a nearby Sun-like star. This Chapter summarizes the current state of knowledge regarding…

Earth and Planetary Astrophysics · Physics 2023-07-28 Thayne Currie , Beth Biller , Anne-Marie Lagrange , Christian Marois , Olivier Guyon , Eric Nielsen , Mickael Bonnefoy , Robert De Rosa

For exoplanet direct detection mission concepts such as Terrestrial Planet Finder or Exoplanet Probe, light from the exozodiacal dust tends to obscure any exoplanets present in the image. Data analysis methods to identify point sources…

Instrumentation and Methods for Astrophysics · Physics 2010-12-07 Charley Noecker , Marc Kuchner

The detection and characterization of habitable planets around nearby stars persist as one of the foremost objectives in contemporary astrophysics. This work investigates the synergistic integration of astrometric and direct imaging…

Earth and Planetary Astrophysics · Physics 2025-05-06 Chunhui Bao , Jianghui Ji , Dongjie Tan , Guo Chen , Xiumin Huang , Su Wang , Yao Dong

Transits of bright stars offer a unique opportunity to study detailed properties of extrasolar planets that cannot be determined through radial-velocity observations. We propose a new technique to find such systems using all-sky…

Astrophysics · Physics 2007-05-23 Joshua Pepper , Andrew Gould , D. L. Depoy

I present a review of astrometric techniques and instrumentation utilized to search for, detect, and characterize extra-solar planets. First, I briefly summarize the properties of the present-day sample of extrasolar planets, in connection…

Astrophysics · Physics 2009-11-11 A. Sozzetti

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. We present the caustic topology of such system, as well as…

Earth and Planetary Astrophysics · Physics 2018-10-17 L. de Almeida , J. -D. do Nascimento

The Transiting Exoplanet Survey Satellite (TESS) will embark in 2018 on a 2-year wide-field survey mission, discovering over a thousand terrestrial, super-Earth and sub-Neptune-sized exoplanets potentially suitable for follow-up…

Earth and Planetary Astrophysics · Physics 2018-02-28 Dana R. Louie , Drake Deming , Loic Albert , L. G. Bouma , Jacob Bean , Mercedes Lopez-Morales

Giant planets within the habitable zones of the closest several stars can currently be imaged with ground-based telescopes. Within the next decade, the Extremely Large Telescopes (ELTs) will begin to image the habitable zones of a greater…

Earth and Planetary Astrophysics · Physics 2023-03-08 Zach Werber , Kevin Wagner , Daniel Apai

Targeted spectroscopic exoplanet surveys face the challenge of maximizing their planet detection rates by means of careful planning. The number of possible observation combinations for a large exoplanet survey, i.e., the sequence of…

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…

Earth and Planetary Astrophysics · Physics 2023-07-25 F. Matuszewski , N. Nettelmann , J. Cabrera , A. Börner , H. Rauer

We provide a preliminary estimate of the performance of reflex astrometry on Earth-like planets in the habitable zones of nearby stars. In Monte Carlo experiments, we analyze large samples of astrometric data sets with low to moderate…

Earth and Planetary Astrophysics · Physics 2011-02-11 Robert A. Brown

I derive analytic scalings for coronagraphic imaging searches for extrasolar planets. I compute the efficiency of detecting planets about any given star, and from this compute dimensionless distribution functions for the detected planets as…

Astrophysics · Physics 2008-11-26 Eric Agol