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Related papers: HyDRA-H: Simultaneous Hybrid Retrieval of Exoplane…

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Thermal emission spectra of exoplanets provide constraints on the chemical compositions, pressure-temperature (P-T) profiles, and energy transport in exoplanetary atmospheres. Accurate inferences of these properties rely on the robustness…

Earth and Planetary Astrophysics · Physics 2017-10-20 Siddharth Gandhi , Nikku Madhusudhan

Current observations of the atmospheres of close-in exoplanets are predominantly obtained with two techniques: low-resolution spectroscopy with space telescopes and high-resolution spectroscopy from the ground. Although the observables…

Earth and Planetary Astrophysics · Physics 2017-04-12 M. Brogi , M. Line , J. Bean , J. -M. Désert , H. Schwarz

Hi-resolution spectroscopy (R > 25,000) has recently emerged as one of the leading methods to detect atomic and molecular species in the atmospheres of exoplanets. However, it has so far been lacking in a robust method to extract…

Earth and Planetary Astrophysics · Physics 2019-02-20 Matteo Brogi , Michael R Line

Numerous chemical constraints have been possible for exoplanetary atmospheres thanks to high-resolution spectroscopy (HRS) from ground-based facilities as well as low-resolution spectroscopy (LRS) from space. These two techniques have…

Earth and Planetary Astrophysics · Physics 2024-05-06 Siddharth Gandhi , Rico Landman , Ignas Snellen , Luis Welbanks , Nikku Madhusudhan , Matteo Brogi

Emission spectroscopy is a promising technique to observe atmospheres of rocky exoplanets, probing both their chemistry and thermal profiles. We present HyDRo, an atmospheric retrieval framework for thermal emission spectra of rocky…

Earth and Planetary Astrophysics · Physics 2021-12-22 Anjali A. A. Piette , Nikku Madhusudhan , Avi M. Mandell

[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…

Earth and Planetary Astrophysics · Physics 2015-06-18 Remco J. de Kok , Jayne Birkby , Matteo Brogi , Henriette Schwarz , Simon Albrecht , Ernst J. W. de Mooij , Ignas A. G. Snellen

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.…

Earth and Planetary Astrophysics · Physics 2025-05-15 Ignas Snellen

In the last decade ground based high resolution Doppler spectroscopy (HRS) has detected numerous species in transiting and non-transiting hot Jupiters, and is ideally placed for atmospheric characterisation of warm Neptunes and super…

Earth and Planetary Astrophysics · Physics 2020-09-09 Siddharth Gandhi , Matteo Brogi , Rebecca K. Webb

Isolated brown dwarfs provide remarkable laboratories for understanding atmospheric physics in the low-irradiation regime, and can be observed more precisely than exoplanets. As such, they provide a glimpse into the future of high-SNR…

Earth and Planetary Astrophysics · Physics 2020-09-02 Anjali A. A. Piette , Nikku Madhusudhan

High resolution spectroscopy has opened the way for new, detailed study of exoplanet atmospheres. There is evidence that this technique can be sensitive to the complex, three-dimensional (3D) atmospheric structure of these planets. In this…

Earth and Planetary Astrophysics · Physics 2020-12-09 Hayley Beltz , Emily Rauscher , Matteo Brogi , Eliza M. -R. Kempton

Ground-based high-resolution spectroscopy (HRS) has detected numerous chemical species and atmospheric dynamics in exoplanets, most notably ultra-hot Jupiters (UHJs). However, quantitative estimates on abundances have been challenging but…

Atmospheres of a number of ultra-hot Jupiters (UHJs) with temperatures $\gtrsim$2000~K have been observed recently. Many of these planets show largely featureless thermal spectra in the near-infrared observed with the HST WFC3 spectrograph…

Earth and Planetary Astrophysics · Physics 2020-05-06 Siddharth Gandhi , Nikku Madhusudhan , Avi Mandell

In the last decade, ground-based high-resolution spectroscopy (HRS) has emerged as a powerful method to probe exoplanet atmospheres both in transit and thermal emission. With HRS science now maturing to reveal these planet's thermal,…

High resolution spectroscopy (HRS) has been used to detect a number of species in the atmospheres of hot Jupiters. Key to such detections is accurately and precisely modelled spectra for cross-correlation against the R$\gtrsim$20,000…

Recent progress in high-resolution transmission spectroscopy has offered new avenues in which to characterise the atmospheres of transiting exoplanets. High-resolution cross-correlation spectroscopy allows for the unambiguous detection of…

Earth and Planetary Astrophysics · Physics 2022-11-30 Cathal Maguire , Neale P. Gibson , Stevanus K. Nugroho , Swaetha Ramkumar , Mark Fortune , Stephanie R. Merritt , Ernst de Mooij

The characterization of exoplanet atmospheres has proven to be successful using high-resolution spectroscopy. Phase curve observations of hot/ultra-hot Jupiters can reveal their compositions and thermal structures, thereby allowing the…

Earth and Planetary Astrophysics · Physics 2023-09-01 Swaetha Ramkumar , Neale P. Gibson , Stevanus K. Nugroho , Cathal Maguire , Mark Fortune

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…

Earth and Planetary Astrophysics · Physics 2019-09-18 D. Shulyak , M. Rengel , A. Reiners , U. Seemann , F. Yan

Molecular species in planetary atmospheres provide key insights into their atmospheric processes and formation conditions. In recent years, high-resolution Doppler spectroscopy in the near-infrared has allowed detections of H$_2$O and CO in…

Earth and Planetary Astrophysics · Physics 2018-08-22 George A. Hawker , Nikku Madhusudhan , Samuel H. C. Cabot , Siddharth Gandhi

High-resolution Doppler-resolved spectroscopy has presented new opportunities for studying the atmospheres of exoplanets. While the 'classical' cross-correlation approach has proven to be efficient at finding atmospheric species, it is…

Earth and Planetary Astrophysics · Physics 2022-01-26 Neale P. Gibson , Stevanus K. Nugroho , Joshua Lothringer , Cathal Maguire , David K. Sing

High-resolution Doppler spectroscopy provides an avenue to study the atmosphere of both transiting and non-transiting planets. This powerful method has also yielded some of the most robust atmospheric detections to date. Currently,…

Earth and Planetary Astrophysics · Physics 2024-04-09 S. M. Matthews , C. A. Watson , E. J. W. de Mooij , T. R. Marsh , M. Brogi , S. R. Merritt , K. W. Smith , D. Steeghs
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