Results 1 to 10 of about 13,335 (266)
A new family of planets? “Ocean-Planets” [PDF]
Icarus, 2004 A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: "Ocean-Planets". We present the possible formation, composition and internal models of these putative planets, including that of their ocean, as well as their possible Exobiology interest.
F Selsis, T Guillot, B Chazelas
exaly +5 more sources
Free-floating Planets, Survivor Planets, Captured Planets, and Binary Planets from Stellar Flybys
The Astrophysical JournalAbstract In star clusters, close stellar encounters can strongly impact the architecture of a planetary system or even destroy it. We present a systematic study of the effects of stellar flybys on two-planet systems. When such a system experiences flybys, one or both planets can be ejected, forming free-floating planets (FFPs), captured ...
Fangyuan Yu, Dong Lai
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Spin Dynamics of Extrasolar Giant Planets in Planet–Planet Scattering [PDF]
The Astrophysical Journal, 2021 Abstract Planet–planet scattering best explains the eccentricity distribution of extrasolar giant planets, and past literature showed that the orbits of planets evolve due to planet–planet scattering. This work studies the spin evolution of planets in planet–planet scattering in two-planet systems.
Yu-Cian Hong +3 more
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Feasibility Assessment and Implementation of Integrated Management of The West Coast of The Mazandran Province According to the ICZM [PDF]
مدیریت نوآوری و راهبردهای عملیاتی, 2021 Purpose: Integrated coastal zone management (ICZM) is the primary way to solve environmental problems. In addition, many countries in the world attempt to provide human needs to coastal region services to reach the natural border of these zones.
Habibeh Karimi +2 more
doaj +1 more source
Scientific Aspects in the Thought of the Brothers of Safa [PDF]
مجلة جامعة الأنبار للعلوم الإنسانية, 2021 Al-Safa Brothers are a philosophical group that appeared in the fourth century AH. They gathered and wrote fifty-two treatises in various scientific and philosophical fields known as the letters of Al-safa Brothers and during the death they are ...
Majeed M.trad
doaj +1 more source
Atmosphere loss in planet–planet collisions [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Many of the planets discovered by the Kepler satellite are close orbiting super-Earths or mini-Neptunes. Such objects exhibit a wide spread of densities for similar masses. One possible explanation for this density spread is giant collisions stripping planets of their atmospheres.
Thomas R Denman +3 more
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معتقد التنجيم ورموزه على مسكوكات الجزيرة الفراتية واألناضول خالل القرنين السادس والسابع الهجريين Astrology as a Folk Life on Mesopotamian, and Anatolian Coins from the Sixth to Seventh H.AH Century [PDF]
Journal of General Union of Arab Archaeologists, 2023 {AR} تتناول هذه الورقة البحثية موضوع التنجيم وبعض من رموزه (كالشمس والقمر) التي ظهرت على المسكوكات الإسلامية، في كل من الجزيرة الفراتية والأناضول خلال الفترة ما بين القرن السادس حتى القرن السابع الهجريين، حيث يُعد ظهورها أمر بالغ الأهمية؛ فإذ لم يكن ...
Fatima Mriziq Odeh Abu Shaqqal
doaj +1 more source
PLANET-PLANET SCATTERING IN PLANETESIMAL DISKS [PDF]
The Astrophysical Journal, 2009 We study the final architecture of planetary systems that evolve under the combined effects of planet-planet and planetesimal scattering. Using N-body simulations we investigate the dynamics of marginally unstable systems of gas and ice giants both in isolation and when the planets form interior to a planetesimal belt.
Raymond, Sean N. +2 more
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Tilting Planets during Planet Scattering [PDF]
The Astrophysical Journal Letters, 2021 Abstract Observational constraints on planetary spin axis have recently become possible, and they have revealed a system that favors large spin-axis misalignment, low stellar spin–orbit misalignment, and high eccentricity. To explain the origin of such systems, we propose a mechanism that could tilt the planetary spin axis during planet ...
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Hot Exoplanetary Atmospheres in 3D
Remote Sensing, 2023 Hot giant exoplanets are very exotic objects with no equivalent in the Solar System that allow us to study the behavior of atmospheres under extreme conditions.
William Pluriel
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