Results 111 to 120 of about 3,279 (221)

The Polar Orbit of TOI-2374 b, a Planet in the Neptunian Ridge

open access: yesThe Astronomical Journal
The “Neptunian ridge” is a recently identified peak in the frequency of planets with sizes between that of Neptune and Saturn orbiting their host stars with periods between 3 and 6 days.
Samuel W. Yee   +13 more
doaj   +1 more source

In Support of Astronomy Education Research

open access: yes, 2010
Astronomy education research is that area of inquiry at the interface of modern astrophysics, education, psychology and the cognitive sciences. Although there have always been individual astronomers, who sought and developed effective techniques for ...
Deustua, Susana   +2 more
core  

ExoMiner++: Enhanced Transit Classification and a New Vetting Catalog for 2-minute TESS Data

open access: yesThe Astronomical Journal
We present ExoMiner++ , an enhanced deep learning model that builds on the success of ExoMiner to improve transit signal classification in 2-minute TESS data.
Hamed Valizadegan   +26 more
doaj   +1 more source

Community Involvement in the WFIRST Exoplanet Microlensing Survey

open access: yes, 2019
WFIRST is NASA's first flagship mission with pre-defined core science programs to study dark energy and perform a statistical census of wide orbit exoplanets with a gravitational microlensing survey. Together, these programs are expected to use more than
Jacklin, Savannah   +25 more
core  

A Direct Comparison between the Use of Double Gray and Multiwavelength Radiative Transfer in a General Circulation Model with and without Radiatively Active Clouds

open access: yesThe Astrophysical Journal
Inhomogeneous cloud formation and wavelength-dependent phenomena are expected to shape hot Jupiter atmospheres. We present a general circulation model with multiwavelength “picket fence” radiative transfer and radiatively active, temperature-dependent ...
Isaac Malsky   +7 more
doaj   +1 more source

High-Resolution Spectroscopy of Exoplanet Atmospheres

open access: yes, 2022
Over five thousand exoplanets have been discovered, but relatively little is known about their atmospheric properties and compositions. Characterizing exoplanet atmospheres is the most promising avenue through which we can learn more about exoplanets ...
Deibert, Emily Kathleen
core  

Exoplanet atmospheres: physical processes

open access: yes, 2010
Over the past twenty years, astronomers have identified hundreds of extrasolar planets--planets orbiting stars other than the sun. Recent research in this burgeoning field has made it possible to observe and measure the atmospheres of these exoplanets ...
Seager, Sara
core  

A Comprehensive Analysis of Spitzer 4.5 μm Phase Curves of Hot Jupiters

open access: yesThe Astronomical Journal
Although exoplanetary science was not initially projected to be a substantial part of the Spitzer mission, its exoplanet observations set the stage for current and future surveys with JWST and Ariel.
Lisa Dang   +21 more
doaj   +1 more source

Exoplanet plenitude

open access: yes, 2012
The main aim of the present paper is to give a brief overview of the revolution in exoplanet discoveries which started about two decades ago and the new concepts and perspectives that these observational findings have brought about. The level of the text
Martín, E.L.
core   +2 more sources

Early Accretion of Large Amounts of Solids for Directly Imaged Exoplanets

open access: yesThe Astrophysical Journal
As the number of planetary-mass objects (PMOs; ⪅13 M _Jupiter ) at wider separation (⪆10 au) grows, there is emerging evidence that they form differently from their higher-mass brown dwarf counterparts.
Ji Wang
doaj   +1 more source

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