Results 71 to 80 of about 133,492 (337)

Nightside Clouds on Tidally Locked Terrestrial Planets Mimic Atmosphere-free Scenarios

open access: yesThe Astrophysical Journal Letters
We investigate the impact of nightside cloud formation on the observable day/night contrast of tidally locked terrestrial planet atmospheres. We demonstrate that, in the case where the planetary dayside is only 10 s of Kelvin hotter than the planetary ...
Diana Powell   +2 more
doaj   +1 more source

IS THERE 9-TH PLANET IN OUR SOLAR SYSTEM?

open access: yesOdessa Astronomical Publications, 2016
Brown and Batygin informed on indirect evidence of existence of the ninth planet in Solar System (SS). Some evidence pointing on its possible mass in 10 Earth’s mass; its distance from Sun at perihelion can be ~200AU, at aphelion 600-1200AU, and orbital ...
A. P. Vidmachenko
doaj   +1 more source

The formation and habitability of terrestrial planets in the presence of hot jupiters

open access: yes, 2004
`Hot jupiters,' giant planets with orbits very close to their parent stars, are thought to form farther away and migrate inward via interactions with a massive gas disk.
Alibert   +43 more
core   +1 more source

Low‐Temperature Exsolution of Cobalt From Perovskite Nanoparticles via Bead Milling for Enhanced Electrocatalytic Oxygen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
High‐temperature requirements and complex synthesis limit the practical use of perovskite‐based metal exsolution catalysts. This study addresses these limitations by employing bead milling, enabling efficient metal exsolution at a significantly lower temperature (300 °C) from La0.6Sr0.4CoO3‐δ nanoparticles. Consequently, the catalytic mass activity for
Sang‐Mun Jung   +10 more
wiley   +1 more source

Terrestrial Planet Formation in Extra-Solar Planetary Systems

open access: yes, 2008
Terrestrial planets form in a series of dynamical steps from the solid component of circumstellar disks. First, km-sized planetesimals form likely via a combination of sticky collisions, turbulent concentration of solids, and gravitational collapse from ...
Abe   +10 more
core   +1 more source

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

open access: yesAdvanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa   +7 more
wiley   +1 more source

Size–Frequency Distribution of Terrestrial Leftover Planetesimals and S-complex Implanted Asteroids

open access: yesThe Astrophysical Journal
The isotopic composition of meteorites linked to S-complex asteroids has been used to suggest that these asteroids originated in the terrestrial planet’s region, i.e., within 1.5 au, and later got implanted into the main asteroid belt (MAB).
Rogerio Deienno   +5 more
doaj   +1 more source

New technologies for exoplanet detection with mid-IR interferometers

open access: yesEPJ Web of Conferences, 2011
This paper provides an overview of technology development for the Terrestrial Planet Finder Interferometer (TPF-I). TPF-I is a mid-infrared space interferometer being designed with the capability of detecting Earth-like planets in the habitable zones ...
Ksendzov A.   +7 more
doaj   +1 more source

Planetary Dynamics and Habitable Planet Formation In Binary Star Systems

open access: yes, 2009
Whether binaries can harbor potentially habitable planets depends on several factors including the physical properties and the orbital characteristics of the binary system.
A Deprit   +108 more
core   +1 more source

Self‐Assembled Gallium Sulfide (GaS) Heterostructures Enabling Efficient Water Splitting and Selective Ammonia Sensing

open access: yesAdvanced Functional Materials, EarlyView.
Gallium sulfide (GaS) forms self‐assembled heterostructures with its native oxide, exhibiting high performance in water splitting and ultrasensitive and selective ammonia detection. Surface defects and controlled oxidation enhance catalytic activity and sensing response.
Danil W. Boukhvalov   +13 more
wiley   +1 more source

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