Results 11 to 20 of about 465,389 (352)

Mars: a small terrestrial planet [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2016
Mars is characterized by geological landforms familiar to terrestrial geologists. It has a tenuous atmosphere that evolved differently from that of Earth and Venus and a differentiated inner structure. Our knowledge of the structure and evolution of Mars
N. Mangold   +5 more
semanticscholar   +6 more sources

Migration of comets to the terrestrial planets [PDF]

open access: bronzeProceedings of the International Astronomical Union, 2006
AbstractWe studied the orbital evolution of objects with initial orbits close to those of Jupiter-family comets (JFCs), Halley-type comets (HTCs), and long-period comets, and the probabilities of their collisions with the planets. In our runs the probability of a collision of one object with the Earth could be greater than the sum of probabilities for ...
С. И. Ипатов, John C. Mather
openalex   +4 more sources

Earth and Terrestrial Planet Formation [PDF]

open access: yesarXiv: Earth and Planetary Astrophysics, 2015
The growth and composition of Earth is a direct consequence of planet formation throughout the Solar System. We discuss the known history of the Solar System, the proposed stages of growth and how the early stages of planet formation may be dominated by ...
Seth Andrew Jacobson, K. Walsh
semanticscholar   +4 more sources

The Impact of Extended CO2 Cross Sections on Temperate Anoxic Planet Atmospheres [PDF]

open access: yesThe Astrophysical Journal
Our interpretation of terrestrial exoplanet atmospheric spectra will always be limited by the accuracy of the data we use as input in our forward and retrieval models.
Wynter Broussard   +5 more
doaj   +2 more sources

Warm terrestrial planet with half the mass of Venus transiting a nearby star [PDF]

open access: yes, 2021
In recent years, the advent of a new generation of radial velocity instruments has allowed us to detect planets with increasingly lower mass and to break the one Earth-mass barrier.
O. Demangeon   +44 more
semanticscholar   +1 more source

Formation of Terrestrial Planets [PDF]

open access: yesProceedings of the International Astronomical Union, 2018
The past decade has seen major progress in our understanding of terrestrial planet formation. Yet key questions remain. In this review we first address the growth of 100 km-scale planetesimals as a consequence of dust coagulation and concentration, with current models favoring the streaming instability.
Izidoro, André, Raymond, Sean N.
openaire   +7 more sources

A hot terrestrial planet orbiting the bright M dwarf L 168-9 unveiled by TESS [PDF]

open access: yesAstronomy & Astrophysics, 2020
We report the detection of a transiting super-Earth-sized planet (R= 1.39 ± 0.09R⊕) in a 1.4-day orbit around L 168-9 (TOI-134), a bright M1V dwarf (V= 11,K= 7.1) located at 25.15 ± 0.02 pc.
N. Astudillo-Defru   +69 more
semanticscholar   +1 more source

Takeout and Delivery: Erasing the Dusty Signature of Late-stage Terrestrial Planet Formation

open access: yesThe Astrophysical Journal, 2023
The formation of planets like Earth is expected to conclude with a series of late-stage giant impacts that generate warm dusty debris, the most anticipated visible signpost of terrestrial planet formation in progress.
Joan R. Najita, Scott J. Kenyon
doaj   +1 more source

Non-Thermal Nitric Oxide Formation in the Earth’s Polar Atmosphere

open access: yesAtmosphere, 2023
Auroral events are the prominent manifestation of solar/stellar forcing on planetary atmospheres because they are closely related to the stellar energy deposition by and evolution of planetary atmospheres.
Valery Shematovich   +2 more
doaj   +1 more source

A terrestrial planet candidate in a temperate orbit around Proxima Centauri [PDF]

open access: yesNature, 2016
At a distance of 1.295 parsecs, the red dwarf Proxima Centauri (α Centauri C, GL 551, HIP 70890 or simply Proxima) is the Sun’s closest stellar neighbour and one of the best-studied low-mass stars.
G. Anglada-Escudé   +30 more
semanticscholar   +1 more source

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