Results 31 to 40 of about 1,022 (196)

Astrometry of directly imaged exoplanets with optical interferometry

open access: yesComptes Rendus. Physique, 2023
Optical interferometry has always been seen as a promising but difficult technique for astronomy. Until the year 2018, it was excrucially limited in sensitivity to magnitudes below 10.
Lacour, Sylvestre
doaj   +1 more source

Exoplanets in physics and astronomy teaching

open access: yesRevista Brasileira de Ensino de Ciência e Tecnologia, 2021
This article aims to investigate Physics teaching and scientific dissemination activities with the main theme being the study of exoplanets, planets belonging to a star system distinct from our solar system. The theoretical basis of the project involves reading and writing about articles, books, theses and dissertations focused on the themes of this ...
Ryan Nepomuceno Montemor   +1 more
openaire   +1 more source

Searching for Helium Escape and a Low-density Atmosphere Around the 120 Myr Old Sub-Neptune HIP94235b Using CRIRES+

open access: yesThe Astronomical Journal
Atmospheric mass loss is thought to induce the bimodality in the small planet population as we observe it today. Observationally, active mass loss can be traced by excess absorption in spectral lines of lighter species, such as the hydrogen Ly α line and
Ava Morrissey   +8 more
doaj   +1 more source

Giant Outer Transiting Exoplanet Mass (GOT ’EM) Survey. III. Recovery and Confirmation of a Temperate, Mildly Eccentric, Single-transit Jupiter Orbiting TOI-2010

open access: yesThe Astronomical Journal, 2023
Large-scale exoplanet surveys like the Transiting Exoplanet Survey Satellite (TESS) mission are powerful tools for discovering large numbers of exoplanet candidates.
Christopher R. Mann   +50 more
doaj   +1 more source

Toward Advancement of Fabrication Techniques of Neuromorphic Computing Devices Based on 2D Materials

open access: yesAdvanced Materials Technologies, Volume 10, Issue 20, October 20, 2025.
This review highlights emerging fabrication techniques of 2D material‐based neuromorphic devices, emphasizing proximity vapor transfer for bioinspired optoelectronic applications. Abstract The growing necessity for power‐efficient and cognitive computation mechanisms has driven progress in neuromorphic computing which seeks to imitate the synaptic ...
Shubham Umeshkumar Gupta   +7 more
wiley   +1 more source

The HD 191939 Exoplanet System is Well Aligned and Flat

open access: yesThe Astronomical Journal
We report the sky-projected spin–orbit angle λ for HD 191939 b, the innermost planet in a six-planet system, using Keck/KPF to detect the Rossiter–McLaughlin (RM) effect.
Jack Lubin   +27 more
doaj   +1 more source

Stellar parameters for stars of the CoRoT exoplanet field [PDF]

open access: yesAstronomy & Astrophysics, 2015
43 pages, 17 figures, accepted for publication in A& ...
S. C. Maciel   +14 more
openaire   +6 more sources

Using Venus, Earth, and Mars to Understand Exoplanet Volatile and Climate Evolution

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Venus, Earth, and Mars exhibit a wide range of interactions between their deep interiors, surfaces, lower and upper atmospheres, and the Sun, with commensurate variations in the nature of their atmospheres and evolution of their volatiles. By examining these worlds' characteristics and behavior, we can gain some understanding of the breadth of
Bruce M. Jakosky, Paul K. Byrne
wiley   +1 more source

Ponderings on the Possible Preponderance of Perpendicular Planets

open access: yesThe Astrophysical Journal Letters, 2023
Misalignments between planetary orbits and the equatorial planes of their host stars are clues about the formation and evolution of planetary systems. Earlier work found evidence for a peak near 90° in the distribution of stellar obliquities, based on ...
Jared C. Siegel   +2 more
doaj   +1 more source

Survey and Modeling of Windblown Ejecta Deposits on Venus

open access: yesAGU Advances, Volume 6, Issue 5, October 2025.
Abstract Venus' thick atmosphere rotates in the same direction as the solid body, but ∼60 times faster. This atmospheric superrotation has produced dozens of windblown ejecta deposits (“parabolas”) on the surface of Venus. The formation and modification of parabolas is an interplay between impacts, aeolian modification, and atmospheric dynamics.
T. J. Austin   +3 more
wiley   +1 more source

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