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相关论文: Formation of satellites in circumplanetary discs g…

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The satellites of Jupiter are thought to form in a circumplanetary disc. Here we address their formation and orbital evolution with a population synthesis approach, by varying the dust-to-gas ratio, the disc dispersal timescale and the dust…

地球与行星天体物理 · 物理学 2018-08-24 M. Cilibrasi , J. Szulágyi , L. Mayer , J. Drażkowska , Y. Miguel , P. Inderbitzi

The moons of giant planets are believed to form in situ in Circumplanetary Discs (CPDs). Here we present an N-body population synthesis framework for satellite formation around a Jupiter-like planet, in which the dust-to-gas ratio, the…

地球与行星天体物理 · 物理学 2021-04-29 Marco Cilibrasi , Judit Szulágyi , Simon L. Grimm , Lucio Mayer

Single massive satellites are of great observational interest, as they can produce prominent and potentially detectable signatures. For terrestrial planets and super-Earths, giant impacts in the late stages of formation may generate dense…

地球与行星天体物理 · 物理学 2025-07-08 G. Madeira , L. Esteves , T. F. L. L. Pinheiro , P. V. S. Soares , N. S. Santos , B. Morgado

The formation of satellite systems in circum-planetary discs is considered to be similar to the formation of rocky planets in a proto-planetary disc, especially Super-Earths. Thus, it is possible to use systems with large satellites to test…

地球与行星天体物理 · 物理学 2018-02-07 Ricardo A Moraes , Wilhelm Kley , Ernesto Vieira Neto

A better knowledge of Jovian satellites' origins will bring light on the environment that surrounded Jupiter during its formation and can help us to understand the characteristics of this unique satellite system. We developed a…

地球与行星天体物理 · 物理学 2015-12-09 Yamila Miguel , Shigeru Ida

Several mechanisms have been proposed to explain the formation process of satellite systems, and relatively large moons are thought to be born in circumplanetary disks. Making a single-moon system is known to be more difficult than…

地球与行星天体物理 · 物理学 2020-03-12 Yuri I. Fujii , Masahiro Ogihara

Using radiation hydrodynamics simulations, we explore the evolution of circumplanetary disks around wide-orbit proto-gas giants. At large distances from the star (~100 AU), gravitational instability followed by disk fragmentation can form…

地球与行星天体物理 · 物理学 2015-06-15 Megan Shabram , Aaron Boley

Circumplanetary particle disks would be created in the late stage of planetary formation either by impacts of planetary bodies or disruption of satellites or passing bodies, and satellites can be formed by accretion of disk particles…

地球与行星天体物理 · 物理学 2015-06-23 Ryuki Hyodo , Keiji Ohtsuki , Takaaki Takeda

The icy satellites around Jupiter are considered to have formed in a circumplanetary disk. While previous models focused on the formation of satellites starting from satellitesimals, the question of how satellitesimals form from smaller…

地球与行星天体物理 · 物理学 2017-09-13 Yuhito Shibaike , Satoshi Okuzumi , Takanori Sasaki , Shigeru Ida

Recent analyses have shown that the concluding stages of giant planet formation are accompanied by the development of large-scale meridional flow of gas inside the planetary Hill sphere. This circulation feeds a circumplanetary disk that…

地球与行星天体物理 · 物理学 2020-05-27 Konstantin Batygin , Alessandro Morbidelli

It is believed that satellites of giant planets form in circumplanetary disks. Many of the previous contributions assumed that their formation process proceeds similarly to rocky planet formation, via accretion of the satellite seeds,…

地球与行星天体物理 · 物理学 2018-12-05 Joanna Drazkowska , Judit Szulágyi

We investigate the formation of hot and massive circumplanetary disks (CPDs) and the orbital evolution of satellites formed in these disks. Because of the comparatively small size-scale of the sub-disk, quick magnetic diffusion prevents the…

地球与行星天体物理 · 物理学 2017-05-11 Yuri I. Fujii , Hiroshi Kobayashi , Sanemichi Z. Takahashi , Oliver Gressel

Circumplanetary disks regulate the late accretion to the giant planet and serve as the birthplace for satellites. Understanding their characteristics via simulations also helps to prepare for their observations. Here we study disks around…

地球与行星天体物理 · 物理学 2017-06-28 J. Szulágyi

Context: Around 30 per cent of the observed exoplanets that orbit M dwarf stars are gas giants that are more massive than Jupiter. These planets are prime candidates for formation by disc instability. Aims: We want to determine the…

太阳与恒星天体物理 · 物理学 2020-01-29 Anthony Mercer , Dimitris Stamatellos

Over 50 circumbinary exoplanets have been discovered in recent years, with several of them being gas giants on wide orbits ($>10$AU). The aim of this work is to investigate whether these planets can form through circumbinary disc…

太阳与恒星天体物理 · 物理学 2026-04-28 Matthew Teasdale , Dimitris Stamatellos

The four major satellites of Jupiter, known as the Galilean moons, and Saturn's most massive satellite, Titan, are believed to have formed in a predominantly gaseous circum-planetary disk, during the last stages of formation of their parent…

地球与行星天体物理 · 物理学 2020-01-22 Thomas Ronnet , Anders Johansen

The regular satellites found around Neptune ($\approx 17~M_{\Earth}$) and Uranus ($\approx 14.5~M_{\Earth}$) suggest that past gaseous circumplanetary disks may have co-existed with solids around sub-Neptune-mass protoplanets ($<…

地球与行星天体物理 · 物理学 2015-06-19 Hsiang-Hsu Wang , Defu Bu , Hsien Shang , Pin-Gao Gu

As the number of discovered extrasolar planets has been increasing, diversity of planetary systems requires studies of new formation scenarios. It is important to study satellite formation in circumplanetary disks, which is often viewed as…

地球与行星天体物理 · 物理学 2015-06-05 Masahiro Ogihara , Shigeru Ida

We present the results of hydrodynamic simulations of the formation and subsequent orbital evolution of giant planets embedded in a circumbinary disc. We assume that a 20 earth masses core has migrated to the edge of the inner cavity formed…

天体物理学 · 物理学 2009-11-13 Arnaud Pierens , Richard P. Nelson

Satellites of giant planets thought to form in gaseous circumplanetary disks (CPDs) during the late planet-formation phase, but it was unknown so far whether smaller mass planets, such as the ice giants could form such disks, thus moons…

地球与行星天体物理 · 物理学 2018-12-05 J. Szulágyi , M. Cilibrasi , L. Mayer
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