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Although transit spectroscopy is a powerful method for studying the composition, thermal properties and dynamics of exoplanet atmospheres, only a few transiting terrestrial exoplanets will be close enough to allow significant transit…

Earth and Planetary Astrophysics · Physics 2015-05-28 Franck Selsis , Robin Wordsworth , François Forget

Context. The photometric signal we receive from a star hosting a planet is modulated by the variation of the planet signal with its orbital phase. Such phase variations are observed for transiting hot Jupiters with current instrumentation,…

Earth and Planetary Astrophysics · Physics 2015-05-30 A. S. Maurin , F. Selsis , F. Hersant , A. Belu

Using an idealised general circulation model, we investigate the atmospheric circulation of Earth-like terrestrial planets in a variety of orbital configurations. We relax the common assumption of the planet being tidally-locked, and look…

Earth and Planetary Astrophysics · Physics 2018-12-12 James Penn , Geoffrey K Vallis

Transiting exoplanets provide detailed access to their atmospheres, as the planet's signal can be effectively separated from that of its host star. For transiting exoplanets three fundamental atmospheric measurements are possible:…

Earth and Planetary Astrophysics · Physics 2018-04-23 David K. Sing

Phase curves are the best technique to probe the three dimensional structure of exoplanets' atmospheres. In this chapter we first review current exoplanets phase curve observations and the particular challenges they face. We then describe…

Earth and Planetary Astrophysics · Physics 2019-02-06 Vivien Parmentier , Ian Crossfield

It is possible to learn a great deal about exoplanet atmospheres even when we cannot spatially resolve the planets from their host stars. In this chapter, we overview the basic techniques used to characterize transiting exoplanets -…

Earth and Planetary Astrophysics · Physics 2019-02-06 Laura Kreidberg

We present a catalog of uniformly processed 3.6-$\mu$m and 4.5-$\mu$m band exoplanet thermal phase curves based on Infrared Array Camera observations obtained from the Spitzer Heritage Archive. The catalog includes phase curve measurements…

Earth and Planetary Astrophysics · Physics 2025-03-04 Mark R Swain , Kyle A Pearson , Thaddeus D. Komacek , Geoffrey Bryden , Emeline Fromont , Gautam Vasisht , Gael Roudier , Robert T. Zellem

Detecting and characterizing the atmospheres of rocky exoplanets has proven to be challenging for JWST. Transit spectroscopy of the TRAPPIST-1 planets has been impacted by the effects of spots and faculae on the host star. Secondary…

The occurrence of a planet transiting in front of its host star offers the opportunity to observe the planet's atmosphere filtering starlight. The fraction of occulted stellar flux is roughly proportional to the optically thick area of the…

Earth and Planetary Astrophysics · Physics 2021-04-20 G. Morello , T. Zingales , M. Martin-Lagarde , R. Gastaud , P. -O. Lagage

We use an idealized three-dimensional general circulation model to study condensible-rich atmospheres with an ineffective cold trap on slowly rotating tidally locked terrestrial planets. In particular, we show the climate dynamics in a thin…

Earth and Planetary Astrophysics · Physics 2020-10-05 Feng Ding , Raymond T. Pierrehumbert

This tutorial is an introduction to techniques used to characterize the atmospheres of transiting exoplanets. We intend it to be a useful guide for the undergraduate, graduate student, or postdoctoral scholar who wants to begin research in…

Earth and Planetary Astrophysics · Physics 2018-12-19 Drake Deming , Dana Louie , Holly Sheets

To date, the ability for observers to reveal the composition or thermal structure of an exoplanet's atmosphere has rested on two techniques: high-contrast direct imaging and time-series observations of transiting exoplanets. The former is…

Earth and Planetary Astrophysics · Physics 2020-07-30 Kevin B. Stevenson

The theory of remote sensing shows that observing a planet at multiple phase angles ($\alpha$) is a powerful strategy to characterize its atmosphere. Here, we analyse how the information contained in reflected-starlight spectra of…

Earth and Planetary Astrophysics · Physics 2021-11-24 Óscar Carrión-González , Antonio García Muñoz , Nuno C. Santos , Juan Cabrera , Szilárd Csizmadia , Heike Rauer

The best-characterized exoplanets to date are planets on close-in transiting orbits around their host stars. The high level of irradiation and transiting geometry of these objects make them ideal targets for atmospheric investigations.…

Earth and Planetary Astrophysics · Physics 2019-03-25 Diana Dragomir , Eliza Kempton , Jacob Bean , Ian Crossfield , Eric Gaidos , Nikole Lewis , Michael Line , Roxana Lupu , George Zhou

Next-generation space telescopes will observe the atmospheres of rocky planets orbiting nearby M-dwarfs. Understanding these observations will require well-developed theory in addition to numerical simulations. Here we present theoretical…

Earth and Planetary Astrophysics · Physics 2016-08-29 Daniel D. B. Koll , Dorian S. Abbot

Exoplanets that orbit close to their host stars are much more highly irradiated than their Solar System counterparts. Understanding the thermal structures and appearances of these planets requires investigating how their atmospheres respond…

Exploring exoplanets has transformed our understanding of the universe by revealing many planetary systems that defy our current understanding. To study their atmospheres, spectroscopic observations are used to infer essential atmospheric…

Earth and Planetary Astrophysics · Physics 2025-12-19 Flavio Giobergia , Alkis Koudounas , Elena Baralis

Multi-wavelength transit and secondary-eclipse light-curve observations are some of the most powerful techniques to probe the thermo-chemical properties of exoplanets. Although the large planet-to-star brightness contrast and few available…

Earth and Planetary Astrophysics · Physics 2016-04-06 Patricio E. Cubillos

The recent detections of temperate terrestrial planets orbiting nearby stars and the promise of characterizing their atmospheres motivates a need to understand how the diversity of possible planetary parameters affects the climate of…

Earth and Planetary Astrophysics · Physics 2019-02-13 Thaddeus D. Komacek , Dorian S. Abbot

An exoplanet-exomoon system presents a superposition of phase curves to observers - the dominant component varies according to the planetary period, and the lesser varies according to both the planetary and the lunar period. If the spectra…

Earth and Planetary Astrophysics · Physics 2017-06-28 Duncan H. Forgan
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