Results 11 to 20 of about 1,415 (183)

Effects of Outer Giant Planets on In Situ Formation of Inner Super-Earths

The Astrophysical Journal
Recent studies have found an observational correlation between the presence of outer giant planets and inner super-Earths, which implies that outer giants do not suppress the formation of super-Earths.
Phoebe Sandhaus, Rebekah I. Dawson, Mariah MacDonald, Cody J. Shakespeare, Sarah Morrison   +4 more
doaj   +2 more sources

On the mass of gas giant planets: Is Saturn a failed gas giant?

, 2023
The formation history of giant planets inside and outside the solar system remains unknown. We suggest that runaway gas accretion is initiated only at a mass of ~100 M_Earth and that this mass corresponds to the transition to a gas giant, a planet that ...
Ravit Helled, Helled, Ravit, Helled, Ravit; https://orcid.org/   +2 more
core   +1 more source

Giant planet formation in the solar system [PDF]

The formation history of Jupiter has been of interest due to its ability to shape the solar system's history. Yet little attention has been paid to the formation and growth of Saturn and the other giant planets.
Raorane, Anuja, Lee, Man Hoi, Lau, Tommy Chi Ho, Bouvier, Audrey, Matsumura, Soko; id_orcid, Brasser, Ramon   +5 more
core   +5 more sources

Isotopic ratios D/H and ¹⁵ N/¹⁴N in giant planets [PDF]

, 2017
The determination of isotopic ratios in planets is important since it allows us to investigate the origins and initial composition of materials. The present work aims to determine the possible range of values for isotopic ratios D/H and ¹⁵N/¹⁴N in giant ...
Amaury Thiabaud, Thiabaud, Amaury, Alibert, Yann, Marboeuf, Ulysse, Yann Alibert, Ulysse Marboeuf, Benz, Willy, Willy Benz   +7 more
core   +1 more source

Formation of multiple giant planets and their impact on the protoplanetary disc structure [PDF]

, 2022
The Solar System, together with some exoplanetary systems, is known to host multiple planets. These planets are believed to be born in discs composed of gas and dust in rotation around forming stars. These discs are called protoplanetary discs.
Bergez-Casalou, Camille Arantxa
core   +1 more source

THE ANGLO-AUSTRALIAN PLANET SEARCH. XXI. A GAS-GIANT PLANET IN A ONE YEAR ORBIT AND THE HABITABILITY OF GAS-GIANT SATELLITES [PDF]

, 2011
We have detected the Doppler signature of a gas-giant exoplanet orbiting the star HD 38283, in an eccentric orbit with a period of almost exactly one year (P = 363.2 ± 1.6 d, m sin i = 0.34 ± 0.02 M Jup, e = 0.41 ± 0.16).
C. G. Tinney, O'Toole, Simon J., Jeremy A. Bailey, R. Paul Butler, Wittenmyer, Robert A., Simon J. O'Toole, Brad D. Carter, Tinney, C. G., Hugh R. A. Jones, Bailey, Jeremy A., Horner, J., Jones, Hugh R. A., J. Horner, Carter, Brad D., Robert A. Wittenmyer, Butler, R. Paul   +15 more
core   +1 more source

KOI-3158: The oldest known system of terrestrial-size planets

EPJ Web of Conferences, 2015
The first discoveries of exoplanets around Sun-like stars have fueled efforts to find ever smaller worlds evocative of Earth and other terrestrial planets in the Solar System. While gas-giant planets appear to form preferentially around metal-rich stars,
Campante T. L., Barclay T., Swift J. J., Huber D., Adibekyan V. Zh., Cochran W., Burke C. J., Isaacson H., Quintana E. V., Davies G. R., Silva Aguirre V., Ragozzine D., Riddle R., Baranec C., Basu S., Chaplin W. J., Christensen-Dalsgaard J., Metcalfe T. S., Bedding T. R., Handberg R., Stello D., Brewer J. M., Hekker S., Karoff C., Kolbl R., Law N. M., Lundkvist M., Miglio A., Rowe J. F., Santos N. C., Van Laerhoven C., Arentoft T., Elsworth Y. P., Fischer D. A., Kawaler S. D., Kjeldsen H., Lund M. N., Marcy G. W., Sousa S. G., Sozzetti A., White T. R.   +40 more
doaj   +1 more source

Dependencies of Mantle Shock Heating in Pairwise Accretion

The Astrophysical Journal Letters, 2021
The final assembly of planets involves mutual collisions of large similar-sized protoplanets (“giant impacts”), setting the stage for modern geologic and atmospheric processes.
Travis S. J. Gabriel, Harrison W. Horn
doaj   +1 more source

Giant Planets from the Inside-Out

, 2023
Giant planets acquire gas, ices and rocks during the early formation stages of planetary systems and thus inform us on the formation process itself.
Tristan Guillot (8621181), Michael Line (17773365), Vivien Parmentier (11925818), Ravit Helled (8721270), Masahiro Ikoma (17773362), Leigh Fletcher (7643705)   +5 more
core   +3 more sources

The influence of galactic cosmic rays on ion-neutral hydrocarbon chemistry in the upper atmospheres of free-floating exoplanets

, 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