Characterizing transiting exoplanet atmospheres with jwst
Thomas P. Greene,Michael R. Line,Cezar Montero,Jonathan J. Fortney,Jacob Lustig-Yaeger,Kyle Luther +5 more
TLDR
In this article, the authors explore how well spectra from the James Webb Space Telescope (JWST) will likely constrain bulk atmospheric properties of transiting exoplanets.Abstract:
We explore how well spectra from the James Webb Space Telescope (JWST) will likely constrain bulk atmospheric properties of transiting exoplanets. We start by modeling the atmospheres of archetypal hot Jupiter, warm Neptune, warm sub-Neptune, and cool super-Earth planets with atmospheres that are clear, cloudy, or of high mean molecular weight (HMMW). Next we simulate the λ = 1–11 μm transmission and emission spectra of these systems for several JWST instrument modes for single-transit or single-eclipse events. We then perform retrievals to determine how well temperatures and molecular mixing ratios (CH4, CO, CO2, H2O, NH3) can be constrained. We find that λ = 1–2.5 μm transmission spectra will often constrain the major molecular constituents of clear solar-composition atmospheres well. Cloudy or HMMW atmospheres will often require full 1–11 μm spectra for good constraints, and emission data may be more useful in cases of sufficiently high Fp and high Fp/F*. Strong temperature inversions in the solar-composition hot-Jupiter atmosphere should be detectable with 1–2.5+ μm emission spectra, and 1–5+ μm emission spectra will constrain the temperature–pressure profiles of warm planets. Transmission spectra over 1–5+ μm will constrain [Fe/H] values to better than 0.5 dex for the clear atmospheres of the hot and warm planets studied. Carbon-to-oxygen ratios can be constrained to better than a factor of 2 in some systems. We expect that these results will provide useful predictions of the scientific value of single-event JWST spectra until its on-orbit performance is known.read more
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A chemical survey of exoplanets with ARIEL
Giovanna Tinetti,Pierre Drossart,Paul Eccleston,Paul Hartogh,A. Heske,Jérémy Leconte,Giuseppina Micela,Marc Ollivier,Göran Pilbratt,L. Puig,Diego Turrini,Bart Vandenbussche,Paulina Wolkenberg,Jean-Philippe Beaulieu,Lars A. Buchave,Martin Ferus,Matthew Joseph Griffin,Manuel Guedel,Kay Justtanont,Pierre Olivier Lagage,Pedro Machado,Giuseppe Malaguti,Michiel Min,Hans Ulrik Nørgaard-Nielsen,M. Rataj,Tom Ray,Ignasi Ribas,Mark R. Swain,Róbert Szabó,Stephanie C. Werner,Joanna K. Barstow,Matthew R. Burleigh,James Y-K. Cho,Vincent Coudé du Foresto,Athena Coustenis,Leen Decin,Thérèse Encrenaz,Marina Galand,Michaël Gillon,Ravit Helled,Juan Carlos Morales,Antonio García Muñoz,A. Moneti,Isabella Pagano,Enzo Pascale,Giuseppe Piccioni,D. J. Pinfield,Subhajit Sarkar,Franck Selsis,Jonathan Tennyson,Amaury H. M. J. Triaud,Olivia Venot,Ingo Waldmann,David Waltham,Gillian S. Wright,Jérôme Amiaux,Jean Louis Auguères,Michel Berthé,Naidu Bezawada,Georgia Bishop,Neil Bowles,Deirdre Coffey,Josep Colomé,Martin Crook,Pierre-Elie Crouzet,Vania Da Peppo,Isabel Escudero Sanz,Mauro Focardi,Martin Frericks,T. Hunt,R. Kohley,Kevin Middleton,Gianluca Morgante,Roland Ottensamer,Emanuele Pace,Chris Pearson,R. Stamper,Kate Symonds,Miriam Rengel,Etienne Renotte,Peter A. R. Ade,Laura Affer,Christophe Alard,Nicole F. Allard,Francesca Altieri,Y. André,C. Arena,Ioannis Argyriou,Alan D. Aylward,Cristian Baccani,Gáspár Á. Bakos,Marek Banaszkiewicz,M. J. Barlow,V. Batista,Giancarlo Bellucci,Serena Benatti,Pernelle Bernardi,Bruno Bézard,M. I. Blecka,Emeline Bolmont,Bertrand Bonfond,Rosaria Bonito,Aldo S. Bonomo,John Robert Brucato,Allan Sacha Brun,Ian Bryson,Waldemar Bujwan,Sarah L. Casewell,Bejamin Charnay,Cesare Cecchi Pestellini,Guo Chen,Angela Ciaravella,Riccardo Claudi,R. Cledassou,Mario Damasso,M. Damiano,Camilla Danielski,Pieter Deroo,Anna Maria Di Giorgio,Carsten Dominik,Vanessa Doublier,Simon Doyle,René Doyon,Benjamin Drummond,Bastien Duong,Stephen Anthony Eales,Billy Edwards,M. Farina,Ettore Flaccomio,Leigh N. Fletcher,François Forget,S. J. Fossey,Markus Fränz,Yuka Fujii,A. Garcia-Piquer,Walter Kieran Gear,Hervé Geoffray,Jean-Claude Gérard,Lluis Gesa,Haley Louise Gomez,Rafal Graczyk,Caitlin A. Griffith,Denis Grodent,M. G. Guarcello,Jacques Gustin,Keiko Hamano,Peter Charles Hargrave,Yann Hello,Kevin Heng,E. Herrero,Allan Hornstrup,Benoît Hubert,Shigeru Ida,Masahiro Ikoma,N. Iro,Patrick G. J. Irwin,Christopher Jarchow,Jean Jaubert,Hugh R. A. Jones,Queyrel Julien,Shingo Kameda,Franz Kerschbaum,Pierre Kervella,Tommi Koskinen,Matthijs Krijger,Norbert Krupp,M. Lafarga,Federico Landini,Emanuel Lellouch,Giuseppe Leto,A. Luntzer,Theresa Rank-Lüftinger,Antonio Maggio,Jesus Maldonado,Jean Pierre Maillard,Urs Mall,Jean Baptiste Marquette,Stéphane Mathis,Pierre F. L. Maxted,Taro Matsuo,Alexander S. Medvedev,Yamila Miguel,Vincent Minier,Giuseppe Morello,Alessandro Mura,Norio Narita,Valerio Nascimbeni,N. Nguyen Tong,Vladimiro Noce,Fabrizio Oliva,Enric Palle,Paul Palmer,Maurizio Pancrazzi,Andreas Papageorgiou,Vivien Parmentier,Manuel Perger,A. Petralia,Stefano Pezzuto,Raymond T. Pierrehumbert,Ignazio Pillitteri,Giampaolo Piotto,Giampaolo Pisano,Loredana Prisinzano,Aikaterini Radioti,Jean Michel Reess,Ladislav Rezac,Marco Rocchetto,A. Rosich,Nicoletta Sanna,Alexandre Santerne,Giorgio Savini,Gaetano Scandariato,Bruno Sicardy,Carles Sierra,Giuseppe Sindoni,Konrad Skup,Ignas Snellen,Mateusz Sobiecki,Lauriane Soret,Alessandro Sozzetti,Arnaud Stiepen,Antoine Strugarek,Jake Taylor,William Taylor,Luca Terenzi,Marcell Tessenyi,Angelos Tsiaras,C. Tucker,Diana Valencia,Gautam Vasisht,Allona Vazan,Francesc Vilardell,Sabrine Vinatier,Serena Viti,Rens Waters,Piotr Wawer,A. Wawrzaszek,Anthony Peter Whitworth,Yuk L. Yung,Sergey N. Yurchenko,Maria Rosa Zapatero Osorio,Robert T. Zellem,Tiziano Zingales,Frans Zwart +243 more
TL;DR: The ARIEL mission as mentioned in this paper was designed to observe a large number of transiting planets for statistical understanding, including gas giants, Neptunes, super-Earths and Earth-size planets around a range of host star types using transit spectroscopy in the 1.25-7.8 μm spectral range and multiple narrow-band photometry in the optical.
Journal ArticleDOI
A Revised Exoplanet Yield from the Transiting Exoplanet Survey Satellite (TESS)
TL;DR: In this article, the authors present estimates of how many exoplanets the Transiting Exoplanet Survey Satellite (TESS) will detect, the physical properties of the detected planets, and the properties of those planets that those planets orbit.
Journal ArticleDOI
Observing the Atmospheres of Known Temperate Earth-sized Planets with JWST
Caroline V. Morley,Laura Kreidberg,Zafar Rustamkulov,Tyler D. Robinson,Tyler D. Robinson,Jonathan J. Fortney +5 more
TL;DR: In this paper, thermal emission and transmission spectra for each planet, varying composition and surface pressure of the atmosphere, were modeled and the molecular compositions assuming chemical equilibrium, which can strongly depend on temperature.
Journal ArticleDOI
The imprint of exoplanet formation history on observable present-day spectra of hot Jupiters
Christoph Mordasini,Christoph Mordasini,R. van Boekel,Paul Mollière,Th. Henning,Björn Benneke +5 more
TL;DR: In this article, a chain of models, linking the formation of a planet to its observable present-day spectrum, is presented, including the planet's formation and migration, its long-term thermodynamic evolution, a variety of disk chemistry models, a non-gray atmospheric model, and a radiometric model to obtain simulated spectroscopic observations with James Webb Space Telescope and ARIEL.
Journal ArticleDOI
The Transit Light Source Effect: False Spectral Features and Incorrect Densities for M-dwarf Transiting Planets
TL;DR: In this paper, the Max Planck Institute for Astronomy, Heidelberg, Germany and NASA's Science Mission Directorate provided a grant for a study of the effect of solar radiation on the Earth's magnetic field.
References
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The NextGen Model Atmosphere Grid for 3000 ≤ Teff ≤ 10,000 K
Peter H. Hauschildt,E. Baron +1 more
TL;DR: The NextGen Model Atmosphere Grid for low-mass stars for effective temperatures larger than 3000 K was proposed in this article. But it is not suitable for the analysis of star spectra.
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Journal ArticleDOI
Clouds in the atmosphere of the super-Earth exoplanet GJ 1214b
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TL;DR: A measurement of the transmission spectrum of GJ 1214b at near-infrared wavelengths is reported, sufficiently precise to detect absorption features from a high mean-molecular-mass atmosphere and rule out cloud-free atmospheric models with compositions dominated by water, methane, carbon monoxide, nitrogen or carbon dioxide.
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A Unified Theory for the Atmospheres of the Hot and Very Hot Jupiters: Two Classes of Irradiated Atmospheres
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TL;DR: In this paper, the authors highlight the potential importance of gaseous TiO and VO opacity on the highly irradiated close-in giant planets and calculate model atmospheres for these planets, including pressure-temperature profiles, spectra, and characteristic radiative time constants.
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