Results 51 to 60 of about 45,209 (160)

Composition of Ices in Low-Mass Extrasolar Planets

, 2008
We study the formation conditions of icy planetesimals in protoplanetary disks in order to determine the composition of ices in small and cold extrasolar planets. Assuming that ices are formed from hydrates, clathrates, and pure condensates, we calculate
A. Cassan, D. Ehrenreich, Ehrenfreund P., Hibbitts C. A., Hibbitts C. A., J.‐P. Beaulieu, Kubas D., O. Mousis, Sekine Y., Shakura N. I., U. Marboeuf, V. Wakelam, Walmsley C. M., Watt G. D., Y. Alibert   +14 more
core   +4 more sources

Understanding the Dust Environment at Mercury: From Surface to Exosphere

The Planetary Science Journal
We provide an overview of our understanding of the dust environment at Mercury and the role that dust plays in shaping the planet's surface and exosphere.
H. Krüger, M. S. Thompson, Masanori Kobayashi, V. Mangano, M. Moroni, A. Milillo, L. Keller, S. Sasaki, J. Zender, D. Domingue, J. Benkhoff, A. Galli, F. Leblanc, Go Murakami, M. Sarantos, D. W. Savin   +15 more
semanticscholar   +1 more source

Carbonaceous chondrites: Early irradiation and Pu-244 fission records [PDF]

The carbonaceous meteorites were studied. The studies which were conducted have evolved from investigations of early irradiation to mineralogic and petrologic studies of refractory inclusions and to an examination of the time scales of alteration ...
Macdougall, J. D.
core   +1 more source

Predicting the frequencies of diverse exo-planetary systems

, 2007
Extrasolar planetary systems range from hot Jupiters out to icy comet belts more distant than Pluto. We explain this diversity in a model where the mass of solids in the primordial circumstellar disk dictates the outcome. The star retains measures of the
Beichman, C. A., Bryden, G., Fischer, D. A., Greaves, J. S., Wyatt, M. C.   +4 more
core   +1 more source

Ancient refractory asthenosphere revealed by mantle re-melting at the Arctic Mid Atlantic Ridge

Earth and Planetary Science Letters, 2021
A. Sanfilippo, V. Salters, S. Sokolov, A. Peyve, A. Stracke   +4 more
semanticscholar   +1 more source

The orbital phases and secondary transit of Kepler-10b - A physical interpretation based on the Lava-ocean planet model -

, 2011
The Kepler mission has made an important observation, the first detection of photons from a terrestrial planet by observing its phase curve (Kepler-10b). This opens a new field in exoplanet science: the possibility to get information about the atmosphere
Cavarroc, Céline, Deeg, Hans J., Demangeon, Olivier, Fegley, Bruce, Léger, Alain, Rouan, Daniel, Samuel, Benjamin   +6 more
core   +2 more sources

Parent Volatile Outgassing Associations in Cometary Nuclei: Synthesizing Rosetta Measurements and Ground-based Observations

The Planetary Science Journal
Comets, as remnants of the solar system’s formation, vary in volatile-refractory content. In situ comet studies, such as the Rosetta mission to 67P/Churyumov–Gerasimenko, provide detailed volatile composition insights, while ground-based studies offer ...
M. Saki, D. Bodewits, B. Bonev, N. Dello Russo, A. Luspay-Kuti, J. Noonan, M. Combi, Yinsi Shou   +7 more
semanticscholar   +1 more source

Phase Q - A carrier for subsolar noble gases [PDF]

, 2002
We discuss noble gases in the E-chondrite St. Mark's indicating that the subsolar component does not exclusively reside in enstatite. Element and isotope abundances including He are presented.
Baur, H., Busemann, H., Wieler, R.
core  

Elemental Abundances of Kepler Objects of Interest in APOGEE. I. Two Distinct Orbital Period Regimes Inferred from Host Star Iron Abundances

, 2017
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) has observed $\sim$600 transiting exoplanets and exoplanet candidates from \textit{Kepler} (Kepler Objects of Interest, KOIs), most with $\geq$18 epochs. The combined multi-epoch spectra
Almeida, Andrés, Bender, Chad, Brinkmann, Jonathan, Cunha, Katia, Garciá-Hernández, D. A., Mahadevan, Suvrath, Majewski, Steven R., Prieto, Carlos Allende, Skrutskie, Michael F., Smith, Verne, Souto, Diogo, Stassun, Keivan G., Teske, Johanna, Troup, Nicholas, Wilson, Robert F., Zamora, Olga   +15 more
core   +1 more source

Chemical composition of Earth-like planets

, 2015
Models of planet formation are mainly focused on the accretion and dynamical processes of the planets, neglecting their chemical composition. In this work, we calculate the condensation sequence of the different chemical elements for a low-mass ...
Alibert, Y., de Elía, G. C., Guilera, O. M., Marboeuf, U., Ronco, M. P., Thiabaud, A.   +5 more
core