Results 31 to 40 of about 176,490 (172)
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
Extrasolar planet search and characterisation [PDF]
, 2007 Over two hundred extrasolar planets have been discovered to date with various methods. This thesis reports on searching for extrasolar planets and characterising them by simulating their atmospheres.
Hood, Ben Andrew Ashcom
core +2 more sources
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
Using dimers to measure biosignatures and atmospheric pressure for terrestrial exoplanets [PDF]
, 2014 We present a new method to probe atmospheric pressure on Earth-like planets using (O-O) dimers in the near-infrared. We also show that dimer features could be the most readily detectable biosignatures for Earth-like atmospheres and may even be detectable
Misra, A. +3 more
core +1 more source
Meta-modelling the climate of dry tide locked rocky planets [PDF]
, 2022 Rocky planets hosted by close-in extrasolar systems are likely to be tidally locked in 1:1 spin-orbit resonance, a configuration where they exhibit permanent dayside and nightside.
Auclair-Desrotour, Pierre +8 more
core +2 more sources