Results 301 to 310 of about 60,532 (352)

Stable carbon isotope evolution of formaldehyde on early Mars. [PDF]

Sci Rep
Koyama S, Yoshida T, Furukawa Y, Terada N, Ueno Y, Nakamura Y, Kamada A, Kuroda T, Vandaele AC.   +8 more
europepmc   +1 more source

Stellar occultations: a gateway to advances in planetary science. [PDF]

Philos Trans A Math Phys Eng Sci
Souami D, Sfair R, Renner S, El Moutamid M.   +3 more
europepmc   +1 more source

Measuring the magnetic fields in the chromospheres of low-mass stars

Cang T, Petit P, Donati J, Tian H, Fu J, Li H, Bellotti S, Hu X, Ma X, Ariste AL, Xing K, Morin J, Lu H, Zong W.   +13 more
europepmc   +1 more source

Precise Masses Reveal that TOI-700 c is Low Density and TOI-700 d is Rocky

Gilbert E, Burt J, Barragán O, Siegel J, Mascareño AS, Silva A, Luque R, Rogers J, Lee E, Lopez E, Vanderburg A, Clement M, Youngblood A, Mamajek E, Sousa S, Cameron AC, Rodriguez J, Martin D, Arney G, Barclay T, Becker J, Colon K, Eisner N, Halverson S, Hord B, Kane S, Kreidberg L, Morley C, Mortier A, Nielsen L, Quintana E, Schlieder J, Suissa G, Triaud A, Trifonov T, Eylen VV.   +35 more
europepmc   +1 more source

PLANETARY WAVES IN THE ATMOSPHERE [PDF]

Journal of Meteorology, 1954
Abstract A numerical method is presented for solving the non-linear barotropic vorticity equation in spherical coordinates. It is shown that, when the stream function is expressed as a sum of surface spherical harmonics, the barotropic vorticity equation gives rise to harmonic tendency equations which express the time rate of change of the harmonic ...
Isadore Silberman
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Planetary atmospheres with ALMA

Astrophysics and Space Science, 2007
Thanks to its sensitivity, spatial resolution and instantaneous uv-coverage, ALMA will permit many new studies related to the general topic of the couplings between chemistry and dynamics in planetary atmospheres. It will include: (1) three-dimensional mapping of composition, temperatures and winds in the atmospheres of Mars, Venus and Titan; (2 ...
openaire   +4 more sources

Fluorescence in planetary atmospheres

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1957
It is pointed out that ions and free radicals will exist in the high atmospheres of the planets and that these ions will absorb and fluoresce in the visible and near ultra-violet radiations. Applications of this effect to the problem of the colour of Venus, the blue haze of Mars, the variation of brightness of Jupiter and the haze of Mercury are ...
Harold Clayton Urey, A. W. Brewer
openaire   +2 more sources

Dissipation of Planetary Atmospheres

Science, 1959
Escape-level density is approximately inversely proportional to gravity and with decreasing mass will tend toward that of interplanetary gas. When this value is reached, dissipation must cease. The minimum possible ground density of lunar air is calculated to be 10 –12 that of the air at normal temperature and ...
openaire   +3 more sources

The Penetration of Planetary Atmospheres [PDF]

Journal of Heat Transfer, 1959
The problems of penetrating a planetary atmosphere are reviewed and techniques for penetration are discussed. These techniques are resolved into two general classes: (1) Gradual entry into the atmosphere with relatively low deceleration loads and heating rates low enough so that the heat may be rejected by thermal radiation from the surface; and (2 ...
openaire   +1 more source

Jets in Planetary Atmospheres

2019
Jet streams, “jets” for short, are remarkably coherent streams of air found in every major atmosphere. They have a profound effect on a planet’s global circulation and have been an enigma since the belts and zones of Jupiter were discovered in the 1600s.
openaire   +2 more sources