Computing planetary atmospheres with algorithms derived from action thermodynamics and a novel version of the virial theorem for gravitating polyatomic molecules [PDF]
arXiv, 2015 An objective revision of the Laplace barometric formula for isothermal planetary atmospheres is proposed. From Clausius virial theorem equating the root mean square kinetic energy to half the gravitational potential energy, planetary atmospheres are required to have declining temperature with altitude as a consequence of the interaction between ...
arxiv
The influence of forward-scattered light in transmission measurements of (exo)planetary atmospheres [PDF]
, 2012 [Abridged] The transmission of light through a planetary atmosphere can be studied as a function of altitude and wavelength using stellar or solar occultations, giving often unique constraints on the atmospheric composition. For exoplanets, a transit yields a limb-integrated, wavelength-dependent transmission spectrum of an atmosphere.
arxiv +1 more source
On the Seasonal Variations of the Ion Precipitation Down to the Upper Atmosphere of Mars
The Astrophysical JournalWe investigate the seasonal variations of ion precipitation, utilizing observations from the Mars Atmosphere and Volatile Evolution mission spanning from 2014 January 4 to 2023 February 14.
Xinzhi Qiu +5 more
doaj +1 more source
Modelling the formation of atmospheric dust in brown dwarfs and planetary atmospheres
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013 Atmospheric dust from volcanoes, sand storms and biogenic products provides condensation seeds for water cloud formation on the Earth. Extrasolar planetary objects such as brown dwarfs and extrasolar giant planets have no comparable sources of ...
Ch. Helling, Aleksejs Fomins
semanticscholar +1 more source
The Origin of Jupiter's Great Red Spot
Geophysical Research LettersJupiter's Great Red Spot (GRS) is the largest and longest‐lived known vortex of all solar system planets but its lifetime is debated and its formation mechanism remains hidden. G. D.
Agustín Sánchez‐Lavega +5 more
doaj +1 more source
Method for Accurate Detection of Amino Acids and Mycotoxins in Planetary Atmospheres. [PDF]
Life (Basel), 2022 Madzunkova S, Nikolić D.
europepmc +1 more source
Formation of Amino Acids and Carboxylic Acids in Weakly Reducing Planetary Atmospheres by Solar Energetic Particles from the Young Sun. [PDF]
Life (Basel), 2023 Kobayashi K +14 more
europepmc +1 more source
Profiling Near-surface Winds on Mars Using Attitude Data from Mars 2020 Ingenuity
The Planetary Science JournalWe used attitude data from the Mars Ingenuity helicopter with a simple steady-state model to estimate wind speeds and directions at altitudes between 3 and 24 m, the first time winds at such altitudes have been probed on Mars.
Brian Jackson +10 more
doaj +1 more source
Observations, Thermochemical Calculations, and Modeling of Exoplanetary Atmospheres [PDF]
arXiv, 2016 This dissertation as a whole aims to provide means to better understand hot-Jupiter planets through observing, performing thermochemical calculations, and modeling their atmospheres. We used Spitzer multi-wavelength secondary-eclipse observations and targets with high signal-to-noise ratios, as their deep eclipses allow us to detect signatures of ...
arxiv
The chemistry of planetary atmospheres [PDF]
Journal of Chemical Education, 1976 Present knowledge concerning the chemistry of planetary atmospheres is reviewed along with the theories which attempt to explain observational data. The known gross atmospheric compositions of the terrestrial and giant planets are listed, differences between the atmospheres of earth and Venus are discussed, and the atmospheres of the giant planets are ...
openaire +2 more sources