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相关论文: On the Luminosity of Young Jupiters

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Here we show preliminary calculations of the cooling and contraction of a 2 MJ planet. These calculations, which are being extended to 1-10 MJ, differ from other published "cooling tracks" in that they include a core accretion-gas capture…

天体物理学 · 物理学 2016-08-30 J. J. Fortney , M. S. Marley , O. Hubickyj , P. Bodenheimer , J. J. Lissauer

The intrinsic luminosity of young Jupiters is of high interest for planet formation theory. It is an observable quantity that is determined by important physical mechanisms during formation, namely the accretion shock structure, and even…

地球与行星天体物理 · 物理学 2015-06-16 Christoph Mordasini

Future instruments like NIRCam and MIRI on JWST or METIS at the ELT will be able to image exoplanets that are too faint for current direct imaging instruments. Evolutionary models predicting the planetary intrinsic luminosity as a function…

[Abridged] The formation of Jupiter is modeled via core-nucleated accretion, and the planet's evolution is simulated up to the present epoch. The growth from a small embryo until gas accretion overtakes solids' accretion was presented by…

地球与行星天体物理 · 物理学 2020-10-16 Gennaro D'Angelo , Stuart J. Weidenschilling , Jack J. Lissauer , Peter Bodenheimer

Thanks to recent high resolution ALMA observations, there is an accumulating evidence for presence of giant planets with masses from $\sim 0.01$ Jupiter mass to a few Jupiter mass with separations up to $ 100$~AU in the annular structures…

地球与行星天体物理 · 物理学 2019-06-19 S. Nayakshin , G. Dipierro , J. Szulagyi

We review recent theoretical progress aimed at understanding the formation and the early stages of evolution of giant planets, low-mass stars and brown dwarfs. Calculations coupling giant planet formation, within a modern version of the…

天体物理学 · 物理学 2007-05-23 G. Chabrier , I. Baraffe , F. Selsis , T. Barman , P. Hennebelle , Y. Alibert

We used {\sl \textup{ab initio}} molecular dynamics simulations to calculate the high-pressure melting temperatures of the three potential core components. The planetary adiabats were obtained by solving the hydrostatic equations in a…

地球与行星天体物理 · 物理学 2019-10-30 S. Mazevet , R. Musella , F. Guyot

We examine the spectra and infrared colors of the cool methane-dominated atmospheres at Teff < 1400 K expected for young gas giant planets. We couple these spectral calculations to an updated version of the Marley et al. (2007) giant planet…

天体物理学 · 物理学 2009-11-13 Jonathan J. Fortney , Mark S. Marley , Didier Saumon , Katharina Lodders

The favored theoretical explanation for giant planet formation -- in both our solar system and others -- is the core accretion model (although it still has some serious difficulties). In this scenario, planetesimals accumulate to build up…

天体物理学 · 物理学 2016-08-30 Gregory Laughlin , Peter Bodenheimer , Fred C. Adams

The formation history of giant planets determines their primordial structure and consequent evolution. We simulate various formation paths of Jupiter to determine its primordial entropy, and find that a common outcome is for proto-Jupiter…

地球与行星天体物理 · 物理学 2018-05-02 Andrew Cumming , Ravit Helled , Julia Venturini

Numerical simulations show that the migration of growing planetary cores may be dominated by turbulent fluctuations in the protoplanetary disk, rather than by any mean property of the flow. We quantify the impact of this stochastic core…

天体物理学 · 物理学 2009-11-10 W. K. M. Rice , Philip J. Armitage

The primordial structure of Jupiter remains uncertain, yet it holds vital clues on the planet's formation and early evolution. Recent work used dynamical constraints from Jupiter's inner moons to determine its primordial state, thereby…

地球与行星天体物理 · 物理学 2026-02-04 Henrik Knierim , Konstantin Batygin , Ravit Helled , Luca Morf , Fred C. Adams

Recent structure models of Jupiter suggest the existence of an extended region in the deep interior with a high heavy element abundance, referred to as a dilute core. This finding has led to increased interest in modelling the formation and…

地球与行星天体物理 · 物理学 2024-12-02 Jesse Polman , Christoph Mordasini

We use numerical simulations to model the migration of massive planets at small radii and compare the results with the known properties of 'hot Jupiters' (extrasolar planets with semi-major axes a < 0.1 AU). For planet masses Mp sin i > 0.5…

天体物理学 · 物理学 2009-11-13 W. K. M. Rice , P. J. Armitage , D. F. Hogg

The unexpected discovery of hot Jupiters challenged the classical theory of planet formation inspired by our solar system. Until now, the origin and evolution of hot Jupiters are still uncertain. Determining their age distribution and…

The observed population of Hot Jupiters displays a stunning variety of physical properties, including a wide range of densities and core sizes for a given planetary mass. Motivated by the observational sample, this paper studies the…

地球与行星天体物理 · 物理学 2015-05-30 Jacob A. Ketchum , Fred C. Adams , Anthony M. Bloch

We present updated atmospheric tables suitable for calculating the post-formation evolution and cooling of Jupiter and Jupiter-like exoplanets. These tables are generated using a 1D radiative transfer modeling code that incorporates the…

地球与行星天体物理 · 物理学 2023-09-06 Yi-Xian Chen , Adam Burrows , Ankan Sur , Roberto Tejada Arevalo

Hot Jupiters, giant extrasolar planets with orbital periods shorter than ~10 days, have long been thought to form at large radial distances, only to subsequently experience long-range inward migration. Here, we propose that in contrast with…

地球与行星天体物理 · 物理学 2016-10-05 Konstantin Batygin , Peter H. Bodenheimer , Gregory P. Laughlin

The Juno mission has provided an accurate determination of Jupiter's gravitational field, which has been used to obtain information about the planet's composition and internal structure. Several models of Jupiter's structure that fit the…

地球与行星天体物理 · 物理学 2020-07-17 Shang-Fei Liu , Yasunori Hori , Simon Müller , Xiaochen Zheng , Ravit Helled , Doug Lin , Andrea Isella

Jupiter's enhancement in nitrogen relative to hydrogen when compared to the Sun has been interpreted as evidence that its early formation occurred beyond the N$_{2}$ snowline ($\sim$ 20-40 AU). However, the rapid growth necessary to form…

地球与行星天体物理 · 物理学 2022-08-30 Megan N. Barnett , Fred J. Ciesla
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