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Optical phase curves have become one of the common probes of exoplanetary atmospheres, but the information they encode has not been fully elucidated. Building on a diverse body of work, we upgrade the Flexible Modeling System (FMS) to…

Earth and Planetary Astrophysics · Physics 2016-03-09 Maria Oreshenko , Kevin Heng , Brice-Olivier Demory

In this paper, a detailed Global Circulation Model was employed to feed the PHOENIX code to calculate 3D spectra and light curves of hot Jupiters. Cloud free and dusty radiative luxes for the planet HD179949b were modeled to show…

Earth and Planetary Astrophysics · Physics 2015-11-30 Juan J. Jiménez-Torres

Future missions like Roman, HabEx, and LUVOIR will directly image exoplanets in reflected light. While current near infrared direct imaging searches are only sensitive to young, self-luminous planets whose brightness is independent of their…

Earth and Planetary Astrophysics · Physics 2022-12-19 Margaret Bruna , Nicolas B. Cowan , Julia Sheffler , Hal M. Haggard , Audrey Bourdon , Mathilde Mâlin

Royal Society Discussion Meeting (2013) `Characterizing exoplanets'. Of the 900+ confirmed exoplanets discovered since 1995 for which we have constraints on their mass (i.e., not including Kepler candidates), 75% have masses larger than…

Earth and Planetary Astrophysics · Physics 2014-03-19 Leigh N. Fletcher , Patrick G. J. Irwin , Joanna K. Barstow , Remco J. de Kok , Jae-Min Lee , Suzanne Aigrain

Recent Spitzer infrared (IR) observations of two transiting hot Jupiters during their secondary eclipses have provided the first direct detection of planets orbiting other stars (Charbonneau et al. 2005; Deming et al. 2005). We here…

Astrophysics · Physics 2007-05-23 Drake Deming , L. Jeremy Richardson , Sara Seager , Joseph Harrington

We report 78 secondary eclipse depths for a sample of 36 transiting hot Jupiters observed at 3.6- and 4.5 microns using the Spitzer Space Telescope. Our eclipse results for 27 of these planets are new, and include highly irradiated worlds…

We use an infrared dataset captured between 1984 and 2017 using several instruments and observatories to report five rare equatorial disturbances that completely altered the appearance of Jupiter's Equatorial Zone (EZ): the clearance of…

For terrestrial exoplanets with thin atmospheres or no atmospheres, the surface contributes light to the reflected light signal of the planet. Measurement of the variety of disk-integrated brightnesses of bodies in the Solar System and the…

Earth and Planetary Astrophysics · Physics 2020-11-11 L. C. Mayorga , David Charbonneau , D. P. Thorngren

The extreme environments of transiting close-in exoplanets in highly-eccentric orbits are ideal for testing exo-climate physics. Spectroscopically resolved phase curves not only allow for the characterization of their thermal response to…

We study the spatial and temporal variability in Jupiter's atmosphere by comparing longitude-resolved brightness temperature maps from the Very Large Array (VLA) radio observatory and NASA's Juno spacecraft Microwave Radiometer (MWR) taken…

Earth and Planetary Astrophysics · Physics 2024-12-31 Joanna Hardesty , Chris Moeckel , Imke de Pater

With the new generation of space telescopes such as the James Webb Space Telescope (JWST), it is possible to better characterize the atmospheres of exoplanets. The atmospheres of Hot and Ultra Hot Jupiters are highly heterogeneous and…

Earth and Planetary Astrophysics · Physics 2024-05-22 Aurélien Falco , Jérémy Leconte , Alexandre Mechineau , William Pluriel

The Cassini cameras have captured the opposition effect in Saturn rings with a high radial resolution at phase angles down to 0.01o in the entire main ring system. We derive phase functions from 0.01 to 25 degrees of phase angle in the…

Earth and Planetary Astrophysics · Physics 2009-02-03 Estelle Deau , Sebastien Charnoz , Luke Dones , Andre Brahic , Carolyn C. Porco

[Abridged] We present a novel method to study the thermal emission of exoplanets as a function of orbital phase at very high spectral resolution, and apply it to investigate the climate of the ultra-hot Jupiter KELT-9b. We combine 3 nights…

Detecting and characterizing the atmospheres of rocky exoplanets has proven to be challenging for JWST. Transit spectroscopy of the TRAPPIST-1 planets has been impacted by the effects of spots and faculae on the host star. Secondary…

Context. The photometric signal we receive from a star hosting a planet is modulated by the variation of the planet signal with its orbital phase. Such phase variations are observed for transiting hot Jupiters with current instrumentation,…

Earth and Planetary Astrophysics · Physics 2015-05-30 A. S. Maurin , F. Selsis , F. Hersant , A. Belu

We present the first primary transit light curve of the hot Jupiter HAT-P-16b in the near-UV photometric band. We observed this object on December 29,2012 in order to update the transit ephemeris, constrain its planetary parameters and…

Earth and Planetary Astrophysics · Physics 2013-10-22 Kyle A. Pearson , Jake D. Turner , Thomas A. G. Sagan

Some parts of the substellar evolution, such as fragmentation of a gaseous cloud and Jupiter-like planet's cooling, are demonstrated to be impacted by Palatini $f(\bar R)$ gravity. Using simple models describing those processes we show that…

General Relativity and Quantum Cosmology · Physics 2021-11-24 Aneta Wojnar

We report the first results from a search for transiting warm Jupiter exoplanets - gas giant planets receiving stellar irradiation below about $10^8$ erg s$^{-1}$ cm$^{-2}$, equivalent to orbital periods beyond about 10 days around Sun-like…

The exoplanet WASP-12b is the prototype for the emerging class of ultra-hot, Jupiter-mass exoplanets. Past models have predicted---and near ultra-violet observations have shown---that this planet is losing mass. We present an analysis of…

Planets with non-zero obliquity and/or orbital eccentricity experience seasonal variations of stellar irradiation at local latitudes. The extent of the atmospheric response can be crudely estimated by the ratio between the orbital timescale…

Earth and Planetary Astrophysics · Physics 2022-03-22 Xianyu Tan