Results 21 to 30 of about 254,575 (299)

THE COMPOSITION OF PLANETARY ATMOSPHERES [PDF]

Symposium - International Astronomical Union, 1981
During the past 10 years, great progress has been made in our knowledge of the planetary atmospheres, mainly due to the recent development of infrared techniques and space astronomy.
Th. Encrenaz, M. Combes
openaire   +1 more source

Radiative transfer and inversion codes for characterizing planetary atmospheres: an overview

Frontiers in Astronomy and Space Sciences, 2023
The study of planetary atmospheres is crucial for understanding the origin, evolution, and processes that shape celestial bodies like planets, moons and comets.
M. Rengel, J. Adamczewski, J. Adamczewski   +2 more
doaj   +1 more source

Planetary Atmospheric Electricity [PDF]

Space Science Reviews, 2008
This volume presents our contemporary understanding of atmospheric electricity at Earth and in other solar system atmospheres. It is written by experts in terrestrial atmospheric electricity and planetary scientists. Many of the key issues related to planetary atmospheric electricity are discussed. The physics presented in this book includes ionisation
Harrison, R. G., Aplin, K. L., Leblanc, François, Yair, Y.   +3 more
openaire   +4 more sources

Study of atmospheres in the solar system, from stellar occultation or planetary transit

Comptes Rendus. Physique, 2022
Stellar occultations and transits occur when a planetary body passes in front of a star (including our Sun). For objects with an atmosphere, refraction plays an essential role to explain the drops of flux and the aureoles observed during these events ...
Sicardy, Bruno
doaj   +1 more source

Strong Depletion of 13C in CO Induced by Photolysis of CO2 in the Martian Atmosphere, Calculated by a Photochemical Model

The Planetary Science Journal, 2023
The isotopic signature of atmospheric carbon offers a unique tracer for the history of the Martian atmosphere and the origin of organic matter on Mars. The photolysis of CO _2 is known to induce strong isotopic fractionation of the carbon between CO _2 ...
Tatsuya Yoshida, Shohei Aoki, Yuichiro Ueno, Naoki Terada, Yuki Nakamura, Kimie Shiobara, Nao Yoshida, Hiromu Nakagawa, Shotaro Sakai, Shungo Koyama   +9 more
doaj   +1 more source

Depletion of 13C in CO in the Atmosphere of Mars Suggested by ExoMars-TGO/NOMAD Observations

The Planetary Science Journal, 2023
The atmosphere of Mars is mainly composed by carbon dioxide (CO _2 ). It has been predicted that photodissociation of CO _2 depletes ^13 C in carbon monoxide (CO).
S. Aoki, K. Shiobara, N. Yoshida, L. Trompet, T. Yoshida, N. Terada, H. Nakagawa, G. Liuzzi, A. C. Vandaele, I. R. Thomas, G. L. Villanueva, M. A. Lopez-Valverde, A. Brines, M. R. Patel, S. Faggi, F. Daerden, J. T. Erwin, B. Ristic, G. Bellucci, J. J. Lopez-Moreno, H. Kurokawa, Y. Ueno   +21 more
doaj   +1 more source

Soft X-Ray-induced Dimerization of Methane

The Astrophysical Journal, 2023
Carbon 1s excitation of methane, CH _4 , has been studied in the gas phase using the ion trap integrated with the photon–ion instrument at PETRA III/DESY and soft X-rays from the beamline P04.
S. Reinwardt, I. Baev, P. Cieslik, K. Baev, T. Buhr, A. Perry-Sassmannshausen, S. Schippers, A. Müller, F. Trinter, J. Viefhaus, M. Martins   +10 more
doaj   +1 more source

SOIR and NOMAD: Characterization of Planetary Atmospheres [PDF]

, 2014
The Belgian Institute for Space Aeronomy is involved in the Venus Express mission (VeX), launched in 2006 and in the ExoMars Trace Gas Orbiter mission (TGO), due for launch in 2016. BISA is responsible for one instrument in each mission, SOIR onboard VeX
Mahieux, A. (5269135), Thomas, I., Vandaele, A. C. (5269129), Wilquet, V. (5269141), Robert, Séverine, Mahieux, Arnaud, Mahieux, A., Robert, S., Wilquet, Valérie, Thomas, I. (5269144), Vandaele, A. C., Robert, S. (5269138), Vandaele, Ann Carine, Chamberlain, S. (5269132), Wilquet, V., Chamberlain, S, Chamberlain, S., Thomas, I.R.   +17 more
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Atmospheres of brown dwarfs [PDF]

, 2014
ChH highlights financial support of the European Community under the FP7 by an ERC starting grant. SLC acknowledges financial support of University of LeicesterBrown Dwarfs are the coolest class of stellar objects known to date. Our present perception is
Casewell, Sarah, Helling, Christiane
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The influence of galactic cosmic rays on ion-neutral hydrocarbon chemistry in the upper atmospheres of free-floating exoplanets [PDF]

, 2014
The authors highlight financial support of the European Community under the FP7 by an ERC starting grant.Cosmic rays may be linked to the formation of volatiles necessary for prebiotic chemistry.
P. B. Rimmer, C. Bilger, Rimmer, P.B., Helling, C., Bilger, C., Ch. Helling   +5 more
core   +1 more source