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Disintegrating planets allow for the unique opportunity to study the composition of the interiors of small, hot, rocky exoplanets because the interior is evaporating and that material is condensing into dust, which is being blown away and…

地球与行星天体物理 · 物理学 2018-10-17 Eva H. L. Bodman , Jason T. Wright , Steven J. Desch , Carey M. Lisse

Rocky exoplanets are faint and difficult to observe due to their small size and low brightness compared to their host star. Despite this, the James Webb Space Telescope (JWST) has allowed us new methods and opportunities to study them.…

地球与行星天体物理 · 物理学 2024-10-23 Ilyana A. Guez , Mark Claire

Recent advances in the use of High-Resolution Cross-Correlation Spectroscopy (HRCCS) to detect molecular species in exoplanet atmospheres, presents a new challenge for the accuracy of reference spectroscopic line lists. While parent…

地球与行星天体物理 · 物理学 2026-04-20 Marco G. Barnfield , Oleg L. Polyansky , Sergei N. Yurchenko , Jonathan Tennyson

We explore the efficacy of machine learning (ML) in characterizing exoplanets into different classes. The source of the data used in this work is University of Puerto Rico's Planetary Habitability Laboratory's Exoplanets Catalog (PHL-EC).…

天体物理仪器与方法 · 物理学 2018-05-24 Suryoday Basak , Surbhi Agrawal , Snehanshu Saha , Abhijit Jeremiel Theophilus , Kakoli Bora , Gouri Deshpande , Jayant Murthy

Dust substructures in protoplanetary discs can be signatures of embedded young planets whose detection and characterisation would provide a better understanding of planet formation. Traditional techniques used to link substructures'…

地球与行星天体物理 · 物理学 2025-08-20 A. Ruzza , G. Lodato , G. P. Rosotti , P. J. Armitage

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

Transit and radial velocity observations continuously discover an increasing number of exoplanets. However, when it comes to the composition of the observed planets the data are compatible with several interior structure models. Thus, a…

地球与行星天体物理 · 物理学 2011-12-12 U. Kramm , N. Nettelmann , J. J. Fortney , R. Neuhäuser , R. Redmer

The detection of transits is an efficient technique to uncover faint companions around stars. The full characterisation of the companions (M-type stars, brown dwarfs or exoplanets) requires high-resolution spectroscopy to measure properly…

天体物理学 · 物理学 2008-12-18 J. Gallardo , D. Minniti , D. Valls-Gabaud , M. Rejkuba

Transit timing variation (TTV) provides rich information about the mass and orbital properties of exoplanets, which are often obtained by solving an inverse problem via Markov Chain Monte Carlo (MCMC). In this paper, we design a new…

地球与行星天体物理 · 物理学 2024-09-10 Chen Chen , Lingkai Kong , Gongjie Li , Molei Tao

Since planets were first discovered outside our own Solar System in 1992 (around a pulsar) and in 1995 (around a main sequence star), extrasolar planet studies have become one of the most dynamic research fields in astronomy. Now that more…

地球与行星天体物理 · 物理学 2009-10-06 Giammarco Campanella

In the near-future, dedicated telescopes observe Earth-like exoplanets in reflected light, allowing their characterization. Because of the huge distances, every exoplanet will be a single pixel, but temporal variations in its spectral flux…

地球与行星天体物理 · 物理学 2022-08-10 K. Meinke , D. M. Stam , P. M. Visser

Atmospheric mass-loss is known to play a leading role in sculpting the demographics of small, close-in exoplanets. Knowledge of how such planets evolve allows one to ``rewind the clock'' to infer the conditions in which they formed. Here,…

地球与行星天体物理 · 物理学 2023-02-15 James G. Rogers , Clàudia Janó Muñoz , James E. Owen , T. Lucas Makinen

Astronomical surveys have identified numerous exoplanets with bulk compositions that are unlike the planets of the Solar System, including rocky super-Earths and gas-enveloped sub-Neptunes. Observing the atmospheres of these objects…

地球与行星天体物理 · 物理学 2025-10-13 Tim Lichtenberg , Oliver Shorttle , Johanna Teske , Eliza M. -R. Kempton

Machine learning has the potential to improve the reconstruction of the dark matter profile of galaxies with respect to traditional methods, like rotation curves. We demonstrate on the simulation suite Illustris-TNG that a steerable…

星系天体物理 · 物理学 2025-10-23 Martín de los Rios , Serafina Di Gioia , Fabio Iocco , Roberto Trotta

Vetting of exoplanet candidates in transit surveys is a manual process, which suffers from a large number of false positives and a lack of consistency. Previous work has shown that Convolutional Neural Networks (CNN) provide an efficient…

Many exoplanets have been discovered with radii of 1-4 Earth radii, between that of Earth and Neptune. A number of these are known to have densities consistent with solid compositions, while others are "sub-Neptunes" likely to have…

地球与行星天体物理 · 物理学 2015-06-18 Alex R. Howe , Adam S. Burrows , Wesley Verne

The interpretation of the origin of observed exoplanets is usually done only qualitatively due to uncertainties of key parameters in planet formation models. To allow a quantitative methodology which traces back in time to the planet birth…

地球与行星天体物理 · 物理学 2025-12-08 Remo Burn , Victor F. Ksoll , Hubert Klahr , Thomas Henning

Condensate clouds are a defining feature of brown dwarf and exoplanet atmospheres, producing a broad range of colours on the CMD and giving rise to spectral features such as the distinct $\sim 10 \mu$m spectral imprint. Cloud cover is…

Until now, there is no confirmed moon beyond our solar system (exomoon). Exomoons offer us new possibly habitable places which might also be outside the classical habitable zone. But until now, the search for exomoons needs much…

地球与行星天体物理 · 物理学 2021-12-08 Lukas Weghs

The next generation of telescopes will yield a substantial increase in the availability of high-resolution spectroscopic data for thousands of exoplanets. The sheer volume of data and number of planets to be analyzed greatly motivate the…

地球与行星天体物理 · 物理学 2023-08-16 Roy T. Forestano , Konstantin T. Matchev , Katia Matcheva , Eyup B. Unlu