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Are There Terrestrial Planets Lurking in the Outer Solar System?

The Astrophysical Journal Letters, 2023
Motivated by recent measurements of the free-floating-planet mass function at terrestrial masses, we consider the possibility that the solar system may have captured a terrestrial planet early in its history.
Amir Siraj
doaj   +3 more sources

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

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   +4 more sources

Terrestrial Planet Formation in Extra-Solar Planetary Systems [PDF]

Proceedings of the International Astronomical Union, 2008
Terrestrial planets form in a series of dynamical steps from the solid component of circumstellar disks. First, km-sized planetesimals form likely via a combination of sticky collisions, turbulent concentration of solids, and gravitational collapse from ...
Abe, Bean, Canup, Carroll, Collins, Dominik, Dullemond, Sean N. Raymond, Selsis, Ward, Weidenschilling   +10 more
core   +2 more sources

Formation of terrestrial planets in disks evolving via disk winds and implications for the origin of the solar system's terrestrial planets [PDF]

Astronomy & Astrophysics, 2015
Recent three-dimensional magnetohydrodynamical simulations have identified a disk wind by which gas materials are lost from the surface of a protoplanetary disk, which can significantly alter the evolution of the inner disk and the formation of ...
Inutsuka, Shu-ichiro, Kobayashi, Hiroshi, Ogihara, Masahiro, Suzuki, Takeru K.   +3 more
core   +2 more sources

A Resonant Beginning for the Solar System’s Terrestrial Planets

The Astrophysical Journal
In the past two decades, transit surveys have revealed a class of planets with thick atmospheres—sub-Neptunes—that must have completed their accretion in protoplanet disks.
Shuo Huang, Chris W. Ormel, Simon Portegies Zwart, Eiichiro Kokubo, Tian Yi   +4 more
doaj   +3 more sources

Terrestrial planet formation from lost inner solar system material [PDF]

Science Advances, 2021
An integrated assessment of isotopic variations among meteorites reveals the process by which Earth and Mars are formed.
Christoph Burkhardt, Fridolin Spitzer, Alessandro Morbidelli, Gerrit Budde, Jan H. Render, Thomas S. Kruijer, Thorsten Kleine   +6 more
openaire   +6 more sources

A pebble accretion model for the formation of the terrestrial planets in the Solar System [PDF]

Science Advances, 2021
A new theory for formation of Earth by accretion of small pebbles explains how our planet acquired its water and carbon.
Johansen, Anders, Ronnet, Thomas, Bizzarro, Martin, Schiller, Martin, Lambrechts, Michiel, Nordlund, Åke, Lammer, Helmut   +6 more
openaire   +4 more sources

Atmospheric Retrieval of Terrestrial Solar System Planets for LIFE

, 2022
ISSN:0002 ...
Konrad, Björn; id_orcid0000-0002-9912-8340, Alei, Eleonora; id_orcid0000-0002-0006-1175, Angerhausen, Daniel, Quanz, Sascha Patrick; id_orcid0000-0003-3829-7412, LIFE Collaboration   +4 more
openaire   +3 more sources

Observations of Locally Generated Whistler-mode Waves in the Martian Magnetotail Current Sheet

The Astrophysical Journal, 2023
The whistler-mode wave is an electromagnetic wave that commonly occurs in space plasma and has been extensively studied, especially within the Earth's magnetosphere. They have also been reported in the near-Mars space, such as Martian upstream solar wind,
Xiao Ma, Anmin Tian, Shichen Bai, Ruilong Guo, Quanqi Shi, Mengmeng Wang, Xiaochen Shen   +6 more
doaj   +1 more source

Transport Characteristics of the Electrification and Lightning of the Gas Mixture Representing the Atmospheres of the Solar System Planets

Atmosphere, 2021
Electrification represents a fundamental process in planetary atmospheres, widespread in the Solar System. The atmospheres of the terrestrial planets (Venus, Earth, and Mars) range from thin to thick are rich in heavier gases and gaseous compounds, such ...
Marija Radmilović-Radjenović, Martin Sabo, Branislav Radjenović   +2 more
doaj   +1 more source