Results 111 to 120 of about 22,347,435 (253)

GJ 357 d: Potentially Habitable World or Agent of Chaos?

open access: yesThe Astronomical Journal, 2023
Multiplanet systems provide important laboratories for exploring dynamical interactions within the range of known exoplanetary system architectures. One such system is GJ 357, consisting of a low-mass host star and three orbiting planets, the outermost ...
Stephen R. Kane, Tara Fetherolf
doaj   +1 more source

Science of omics: a molecular space odyssey

open access: yes
Experimental Physiology, EarlyView.
Salomé Coppens   +3 more
wiley   +1 more source

Initial Thermal States of Super‐Earth Exoplanets and Implications for Early Dynamos

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 2, February 2025.
Abstract The accretion of Earth and the formation of a metallic core released a large amount of primordial heat and may have enabled its evolution into a habitable world. Metal‐silicate segregation likely occurs in super‐Earth exoplanets as well, but its influence on their initial thermal states has not been fully examined.
Nathaniel I. White, Jie Li
wiley   +1 more source

Prospects for exoplanet imaging in multi-star systems with starshades [PDF]

open access: yesTechniques and Instrumentation for Detection of Exoplanets VIII, 2017
13 pages, 9 figures, Proceedings of ...
Dan Sirbu   +5 more
openaire   +3 more sources

Can Cold Jupiters Sculpt the Edge-of-the-multis?

open access: yesThe Astrophysical Journal, 2023
Compact systems of multiple close-in super-Earths/sub-Neptunes ( compact multis ) are a ubiquitous outcome of planet formation. It was recently discovered that the outer edges of compact multis are located at smaller orbital periods than expected from ...
Nicole Sobski, Sarah C. Millholland
doaj   +1 more source

MARVEL Analysis of High‐Resolution Rovibrational Spectra of 16O13C18O

open access: yesJournal of Computational Chemistry, Volume 46, Issue 1, January 5, 2025.
12348 measured transitions in the wavenumber range 578–9318 cm−1 for carbon dioxide (isotopologue 638) were used° to calculating 3975 empirical rovibrational energy levels with J° up to 82. ABSTRACT A large set of validated experimental transitions and empirical rovibrational energy levels are reported for the fifth most abundant carbon dioxide ...
Ala'a A. A. Azzam   +4 more
wiley   +1 more source

White Dwarf Stars in the Big Data Era

open access: yesAstronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT White dwarf stars are the most common endpoint of stellar evolution. Therefore, these old, numerous and compact objects provide valuable information on the late stages of stellar evolution, the physics of dense plasma and the structure and evolution of our Galaxy.
Maria Camisassa
wiley   +1 more source

TESS Hunt for Young and Maturing Exoplanets (THYME). XI. An Earth-sized Planet Orbiting a Nearby, Solar-like Host in the 400 Myr Ursa Major Moving Group

open access: yesThe Astronomical Journal
Young terrestrial worlds are critical test beds to constrain prevailing theories of planetary formation and evolution. We present the discovery of HD 63433 d—a nearby (22 pc), Earth-sized planet transiting a young Sun-like star (TOI-1726, HD 63433).
Benjamin K. Capistrant   +34 more
doaj   +1 more source

Pulsating stars harbouring planets

open access: yesEPJ Web of Conferences, 2013
Why bother with asteroseismology while studying exoplanets? There are several answers to this question. Asteroseismology and exoplanetary sciences have much in common and the synergy between the two opens up new aspects in both fields.
Moya A.
doaj   +1 more source

Ionospheric Conductances at the Giant Planets of the Solar System: A Comparative Study of Ionization Sources and the Impact of Meteoric Ions

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 1, January 2025.
Abstract The dynamics of giant planet magnetospheres is controlled by a complex interplay between their fast rotation, their interaction with the solar wind, and their diverse internal plasma and momentum sources. In the ionosphere, the Hall and Pedersen conductances are two key parameters that regulate the intensity of currents coupling the ...
Noé Clément   +4 more
wiley   +1 more source

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