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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 -…

地球与行星天体物理 · 物理学 2019-02-06 Laura Kreidberg

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…

地球与行星天体物理 · 物理学 2020-07-30 Kevin B. Stevenson

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.…

地球与行星天体物理 · 物理学 2019-03-25 Diana Dragomir , Eliza Kempton , Jacob Bean , Ian Crossfield , Eric Gaidos , Nikole Lewis , Michael Line , Roxana Lupu , George Zhou

We propose a method for observing transiting exoplanets with near-infrared high-resolution spectrometers. We aim to create a robust data analysis method for recovering atmospheric transmission spectra from transiting exoplanets over a wide…

天体物理仪器与方法 · 物理学 2015-06-17 Erik Aronson , Pierre Waldén , Nikolai Piskunov

Improved photometric sensitivity from space-based telescopes have enabled the detection of phase variations for a small sample of hot Jupiters. However, exoplanets in highly eccentric orbits present unique opportunities to study the effects…

地球与行星天体物理 · 物理学 2015-05-20 Stephen R. Kane , Dawn M. Gelino

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…

地球与行星天体物理 · 物理学 2015-05-28 Franck Selsis , Robin Wordsworth , François Forget

Characterization of exoplanets has matured in recent years, particularly through studies of exoplanetary atmospheres of transiting planets at infra-red wavelenegths. The primary source for such observations has been the Spitzer Space…

地球与行星天体物理 · 物理学 2015-05-30 Stephen R. Kane , Dawn M. Gelino

Understanding a planet's atmosphere is a necessary condition for understanding not only the planet itself, but also its formation, structure, evolution, and habitability, This puts a premium on obtaining spectra, and developing credible…

地球与行星天体物理 · 物理学 2015-06-18 Adam Burrows

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…

Studying the atmospheres of exoplanets is one of the most promising ways to learn about distant worlds beyond our solar system. The composition of an exoplanet's atmosphere can provide critical insights into its geology and potential…

地球与行星天体物理 · 物理学 2025-05-05 Surangkhana Rukdee

Observations of stellar surfaces - except for the Sun - are hampered by their tiny angular extent, while observed spectral lines are smeared by averaging over the stellar surface, and by stellar rotation. Exoplanet transits can be used to…

太阳与恒星天体物理 · 物理学 2016-12-07 Dainis Dravins , Hans-Günter Ludwig , Erik Dahlén , Hiva Pazira

High-resolution spectroscopy (HRS) has grown into one of the main techniques to characterise the atmospheres of extrasolar planets. High spectral resolving power allows for the efficient removal of telluric and host-star contamination.…

地球与行星天体物理 · 物理学 2025-05-15 Ignas Snellen

Exoplanets are now being discovered in profusion. However, to understand their character requires spectral models and data. These elements of remote sensing can yield temperatures, compositions, and even weather patterns, but only if…

地球与行星天体物理 · 物理学 2015-06-23 Adam Burrows

Atmospheric temperatures are to be estimated from thermal emission spectra of Earth-like exoplanets orbiting M-stars as observed by current and future planned missions. To this end, a line-by-line radiative transfer code is used to generate…

地球与行星天体物理 · 物理学 2023-06-02 Franz Schreier , J. Lee Grenfell , Fabian Wunderlich , Thomas Trautmann

Much of the focus of exoplanet atmosphere analysis in the coming decade will be at infrared wavelengths, with the planned launches of the James Webb Space Telescope (JWST) and the Wide-Field Infrared Survey Telescope (WFIRST). However,…

地球与行星天体物理 · 物理学 2019-03-27 Eric D. Lopez , Vladimir Airapetian , Jessie Christiansen , Luca Fossati , Kevin France

Thanks to the advances in modern instrumentation we have learned about many exoplanets that span a wide range of masses and composition. Studying their atmospheres provides insight into planetary origin, evolution, dynamics, and…

地球与行星天体物理 · 物理学 2019-09-18 D. Shulyak , M. Rengel , A. Reiners , U. Seemann , F. Yan

Much of the focus of exoplanet atmosphere analysis in the coming decade will be atinfrared wavelengths, with the planned launches of the James Webb Space Telescope (JWST) and the Wide-Field Infrared Survey Telescope (WFIRST). However,…

Observations using the Spitzer Space Telescope provided the first detections of photons from extrasolar planets. Spitzer observations are allowing us to infer the temperature structure, composition, and dynamics of exoplanet atmospheres.…

天体物理学 · 物理学 2009-11-13 Drake Deming

[Abridged] Recently, there have been a series of detections of molecules in the atmospheres of extrasolar planets using high spectral resolution (R~100,000) observations, mostly using the CRyogenic high-resolution InfraRed Echelle…

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