Results 31 to 40 of about 182,451 (170)
Astronomische Nachrichten, Volume 346, Issue 2, February 2025.ABSTRACT In our search for life beyond the Solar System, certain planetary bodies may be more conducive to life than Earth. However, the observability of these “superhabitable” (SH) planets in the habitable zones around K dwarf stars has not been fully modeled. This study addresses this gap by modeling the atmospheres of SH exoplanets.
Iva Vilović +3 more
wiley +1 more source
A Link between Rocky Planet Density and Host Star Chemistry
The Astronomical JournalPlanets and their host stars form from the same cloud of gas and dust, so we assume that their chemical compositions are linked. However, a clear correlation between rocky planet interior properties and host star chemistry remains elusive for planets ...
Aida Behmard +4 more
doaj +1 more source
Perspectives of Earth and Space Scientists, Volume 5, Issue 1, December 2024.Abstract Standard notions of an “Earthlike” planet rely solely on physical and material properties, like planetary mass, radius, and surface temperature. Here, we introduce a novel, relational perspective on what defines “Earthlikeness.” In our process‐based framework, rocky planets are local pockets of free energy that have the potential to drive the ...
Michael L. Wong +4 more
wiley +1 more source
Chemistry – A European Journal, Volume 30, Issue 57, October 11, 2024.This study investigates the ability of the carbonaceous meteorite CV3 Allende to act as a catalyst in electrochemical interactions, triggering electrocatalytic reactions resulting in nitrogen (N2) fixation and conversion to ammonia. Additionally, the evolution of crucial compounds such as H2, CN− and sulfur/H2S was observed, along with the detection of
Lucas Fernandez +3 more
wiley +1 more source
The Planetary Science JournalUsing mass–radius composition models, small planets ( R ≲ 2 R _⊕ ) are typically classified into three types: iron-rich, nominally Earth-like, and those with solid/liquid water and/or atmosphere.
J. G. Schulze +6 more
doaj +1 more source
Meteoritics &Planetary Science, Volume 59, Issue 9, Page 2241-2259, September 2024.Abstract We analyzed the methanol extracts of six pristine specimens of the Tagish Lake meteorite (TL1, TL4, TL5A, TL6, TL7, and TL10a) and heated and unheated samples of Allende using high‐performance liquid chromatography coupled with high‐resolution, accurate mass–mass spectrometry (HPLC‐HRAM‐MS).
N. Randazzo +5 more
wiley +1 more source
The Astrophysical JournalNontransiting terrestrial planets will be accessible by upcoming observatories of which LIFE is an example. Planet b orbiting Teegarden’s Star is one of the optimal targets for such missions.
Ryan Boukrouche +2 more
doaj +1 more source
Microlensing search for extra solar planets [PDF]
, 2015 Gravitational microlensing may be used to probe distant stars for planetary companions. The presence of a planet in the vicinity of a star acting as the lens may cause a short lived anomaly in the observed lightcurve of the lensing event.
Tsapras, Yiannis
core +2 more sources
Near the Runaway: The Climate and Habitability of Teegarden’s Star b
The Astrophysical Journal LettersTeegarden’s Star b, a nearby terrestrial world receiving an Earth-like instellation, is a prime candidate for next-generation observatories targeting temperate exoplanets in their habitable zones.
Ryan Boukrouche +2 more
doaj +1 more source
Knudsen effusion mass spectrometry: Current and future approaches
Rapid Communications in Mass Spectrometry, Volume 38, Issue 14, 30 July 2024.Rationale Knudsen effusion mass spectrometry (KEMS) has been a powerful tool in physical chemistry since 1954. There are many excellent reviews of the basic principles of KEMS in the literature. In this review, we focus on the current status and potential growth areas for this instrumental technique.
Nathan S. Jacobson +4 more
wiley +1 more source