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The James Webb Space Telescope (JWST) will offer the first opportunity to characterize terrestrial exoplanets with sufficient precision to identify high mean molecular weight atmospheres, and TRAPPIST-1's seven known transiting Earth-sized…

地球与行星天体物理 · 物理学 2019-06-26 Jacob Lustig-Yaeger , Victoria S. Meadows , Andrew P. Lincowski

The James Webb Space Telescope (JWST) will enable the search for and characterization of terrestrial exoplanet atmospheres in the habitable zone via transmission spectroscopy. However, relatively little work has been done to use solar…

地球与行星天体物理 · 物理学 2023-08-30 Jacob Lustig-Yaeger , Victoria S. Meadows , David Crisp , Michael R. Line , Tyler D. Robinson

The critical first step in the search for life on exoplanets over the next decade is to determine whether rocky planets transiting small M-dwarf stars possess atmospheres and, if so, what processes sculpt them over time. Because of its…

A number of transiting, potentially habitable Earth-sized exoplanets have recently been detected around several nearby M dwarf stars. These worlds represent important targets for atmospheric characterization for the upcoming NASA James Webb…

地球与行星天体物理 · 物理学 2021-05-12 Megan T. Gialluca , Tyler D. Robinson , Sarah Rugheimer , Fabian Wunderlich

The era of exoplanet characterization is upon us. For a subset of exoplanets -- the transiting planets -- physical properties can be measured, including mass, radius, and atmosphere characteristics. Indeed, measuring the atmospheres of a…

天体物理学 · 物理学 2015-05-13 S. Seager , D. Deming , J. A. Valenti

The success of the Transiting Exoplanet Survey Satellite (TESS) mission has led to the discovery of an abundance of Venus Zone (VZ) terrestrial planets that orbit relatively bright host stars. Atmospheric observations of these planets play…

地球与行星天体物理 · 物理学 2023-10-04 Colby Ostberg , Stephen R. Kane , Andrew P. Lincowski , Paul A. Dalba

Terrestrial planets orbiting M dwarfs may soon be observed with the James Webb Space Telescope (JWST) to characterize their atmospheric composition and search for signs of habitability or life. These planets may undergo significant…

地球与行星天体物理 · 物理学 2019-06-25 Andrew P. Lincowski , Jacob Lustig-Yaeger , Victoria S. Meadows

In this white paper, we assess the potential for JWST to characterize the atmospheres of super-Earth exoplanets, by simulating a range of transiting spectra with different masses and temperatures. Our results are based on a JWST simulator…

地球与行星天体物理 · 物理学 2015-07-10 Natasha Batalha , Jason Kalirai , Jonathan Lunine , Mark Clampin , Don Lindler

Eclipse exoplanet spectroscopy has yielded detection of H_2O, CH_4, CO_2 and CO in the atmosphere of hot jupiters and neptunes. About 40 large terrestrial planets are announced or confirmed, two of which are transiting, and another deemed…

地球与行星天体物理 · 物理学 2015-05-19 A. R. Belu , F. Selsis , J-C. Morales , I. Ribas , C. Cossou , H. Rauer

The field of exoplanet atmospheric characterization has recently made considerable advances with the advent of high-resolution spectroscopy from large ground-based telescopes and the commissioning of the James Webb Space Telescope (JWST).…

地球与行星天体物理 · 物理学 2024-04-25 Eliza M. -R. Kempton , Heather A. Knutson

The James Webb Space Telescope (JWST) will revolutionize our understanding of exoplanets with transit spectroscopy of a wide range of mature planets close to their host stars ($<$2 AU) and with coronagraphic imaging and spectroscopy of…

天体物理仪器与方法 · 物理学 2018-03-14 Charles A. Beichman , Tom P. Greene

[Abridged] We have only been able to comprehensively characterize the atmospheres of a handful of transiting planets, because most orbit faint stars. TESS will discover transiting planets orbiting the brightest stars, enabling, in…

The James Webb Space Telescope (JWST) will provide an opportunity to investigate the atmospheres of potentially habitable planets. Aerosols, significantly mute molecular features in transit spectra because they prevent light from probing…

地球与行星天体物理 · 物理学 2022-07-28 Dhvani Doshi , Nicolas B. Cowan , Yi Huang

Near-term studies of Venus-like atmospheres with JWST promise to advance our knowledge of terrestrial planet evolution. However, the remote study of Venus in the Solar System and the ongoing efforts to characterize gaseous exoplanets both…

地球与行星天体物理 · 物理学 2020-01-08 Jacob Lustig-Yaeger , Victoria S. Meadows , Andrew P. Lincowski

The James Webb Space Telescope (JWST) is predicted to make great advances in the field of exoplanet atmospheres. Its 25 m2 mirror means that it can reach unprecedented levels of precision in observations of transit spectra, and can thus…

地球与行星天体物理 · 物理学 2015-02-10 Joanna K. Barstow , Suzanne Aigrain , Patrick G. J. Irwin , Sarah Kendrew , Leigh N. Fletcher

The James Webb Space Telescope (JWST) has provided the first opportunity to study the atmospheres of terrestrial exoplanets and estimate their surface conditions. Earth-sized planets around Sun-like stars are currently inaccessible with…

The James Webb Space Telescope will enable astronomers to obtain exoplanet spectra of unprecedented precision. Especially the MIRI instrument may shed light on the nature of the cloud particles obscuring planetary transmission spectra in…

地球与行星天体物理 · 物理学 2017-03-22 Paul Mollière , Roy van Boekel , Jeroen Bouwman , Thomas Henning , Pierre-Olivier Lagage , Michiel Min

The James Webb Space Telescope (JWST) is expected to revolutionize the field of exoplanets. The broad wavelength coverage and the high sensitivity of its instruments will allow characterization of exoplanetary atmospheres with unprecedented…

We are on the verge of characterizing the atmospheres of terrestrial exoplanets in the habitable zones of M dwarf stars. Due to their large planet-to-star radius ratios and higher frequency of transits, terrestrial exoplanets orbiting M…

地球与行星天体物理 · 物理学 2020-05-05 Thaddeus D. Komacek , Thomas J. Fauchez , Eric T. Wolf , Dorian S. Abbot
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