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Related papers: EXOFASTv2: A public, generalized, publication-qual…

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The recently developed JWST Exoplanet Observation Simulator (JexoSim) simulates transit spectroscopic observations of exoplanets by JWST with each of its four instruments using a time-domain approach. Previously we reported the validation…

Earth and Planetary Astrophysics · Physics 2021-09-15 Subhajit Sarkar , Nikku Madhusudhan

Exoplanets orbiting close to their host star are expected to support a large ionosphere, which extends to larger pressures than witnessed in our Solar System. These ionospheres can be investigated with ground-based transit observations of…

Earth and Planetary Astrophysics · Physics 2019-01-07 Kyle A. Pearson , Caitlin A. Griffith , Robert T. Zellem , Tommi T. Koskinen , Gael M. Roudier

The heterogeneity of papers dealing with the discovery and characterization of exoplanets makes every attempt to maintain a uniform exoplanet catalog almost impossible. Four sources currently available online (NASA Exoplanet Archive,…

Earth and Planetary Astrophysics · Physics 2020-02-06 Eleonora Alei , Riccardo Claudi , Andrea Bignamini , Marco Molinaro

A major goal in the discovery and characterisation of exoplanets is to identify terrestrial-type worlds that are similar to (or otherwise distinct from) our Earth. Recent results have highlighted the importance of applying devolatilisation…

Earth and Planetary Astrophysics · Physics 2022-05-04 Haiyang S. Wang , Sascha P. Quanz , David Yong , Fan Liu , Fabian Seidler , Lorena Acuña , Stephen J. Mojzsis

Transiting exoplanetary systems are surpassingly important among the planetary systems since they provide the widest spectrum of information for both the planet and the host star. If a transiting planet is on an eccentric orbit, the…

Astrophysics · Physics 2009-11-13 András Pál , Bence Kocsis

We present a novel eccentricity parameterization for transit-only fits that allows us to efficiently sample the eccentricity and argument of periastron, while being able to generate a self-consistent model of a planet in a Keplerian orbit…

Earth and Planetary Astrophysics · Physics 2024-01-09 Jason D. Eastman

EXONEST is an algorithm dedicated to detecting and characterizing the photometric signatures of exoplanets, which include reflection and thermal emission, Doppler boosting, and ellipsoidal variations. Using Bayesian Inference, we can test…

Earth and Planetary Astrophysics · Physics 2015-06-17 Ben Placek , Kevin H. Knuth , Daniel Angerhausen

What is habitability? Can we quantify it? What do we mean under the term habitable or potentially habitable planet? With estimates of the number of planets in our Galaxy alone running into billions, possibly a number greater than the number…

Earth and Planetary Astrophysics · Physics 2021-07-16 Margarita Safonova , Archana Mathur , Suryoday Basak , Kakoli Bora , Surbhi Agrawal

(Abridged) Space missions to search for exo-planets via the transit method, such as COROT, Eddington and Kepler, will need to address problems associated with the automated and efficient detection of planetary transits in light curves…

Astrophysics · Physics 2009-11-10 S. Aigrain , M. Irwin

We introduce a new time-series analysis strategy for combined-light exoplanet spectroscopic phase curves called the Variable Planetary Infrared Excess (VPIE) method. VPIE can be used to extract information about the planetary flux…

Earth and Planetary Astrophysics · Physics 2026-02-10 Ted M. Johnson , Avi M. Mandell

The Kepler Mission has discovered thousands of exoplanets and revolutionized our understanding of their population. This large, homogeneous catalog of discoveries has enabled rigorous studies of the occurrence rate of exoplanets and…

Earth and Planetary Astrophysics · Physics 2016-12-14 Daniel Foreman-Mackey , Timothy D. Morton , David W. Hogg , Eric Agol , Bernhard Schölkopf

Owing to technological advances, the number of exoplanets discovered has risen dramatically in the last few years. However, when trying to observe Earth analogs, it is often difficult to test the veracity of detection. We have developed a…

Earth and Planetary Astrophysics · Physics 2017-04-06 Sahil Agarwal , Fabio Del Sordo , John S. Wettlaufer

The transit method allows the detection and characterization of planetary systems by analyzing stellar light curves. Convolutional neural networks appear to offer a viable solution for automating these analyses. In this research, two 1D…

The timing and duration of exoplanet transits has a dependency on observer position due to parallax. In the case of an Earth-bound observer with a 2 AU baseline the dependency is typically small and slightly beyond the limits of current…

Astrophysics · Physics 2011-02-11 Caleb A. Scharf

Exoplanet transit events are attractive targets for the ultrahigh-resolution capabilities afforded by optical interferometers. The intersection of two developments in astronomy enable direct imaging of exoplanet transits: first,…

Solar and Stellar Astrophysics · Physics 2014-05-09 Gerard T. van Belle , Kaspar von Braun , Tabetha Boyajian , Gail Schaefer

Transiting exoplanet atmospheric characterization is currently in a golden age as dozens of exoplanet atmospheres are being studied by NASA's Hubble and James Webb Space Telescopes. This trend is expected to continue with NASA's Pandora…

The ability to make accurate determinations of planetary parameters is inextricably linked to measuring physical parameters of the host star, in particular the stellar radius. In this paper we fit the stellar spectral energy distributions…

Earth and Planetary Astrophysics · Physics 2026-01-07 Sam Morrell , Tim Naylor , John Southworth , David K. Sing

Although there exists a large sample of known exoplanets, little spectroscopic data exists that can be used to study their global atmospheric properties. This deficiency can be addressed by performing phase-resolved spectroscopy --…