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Planets are supposed to form in circumstellar disks. The gravitational potential of a planet perturbs the disk and leads to characteristic structures, i.e. spiral waves and gaps, in the disk's density profile. We perform a large-scale…

太阳与恒星天体物理 · 物理学 2012-12-12 Jan Philipp Ruge , Sebastian Wolf , Ana L. Uribe , Hubert H. Klahr

We review the recent observations of protoplanetary disks together with relevant theoretical studies with an emphasis on the evolution of volatiles. In the last several years Atacama Large Millimeter/submillimeter Array (ALMA) provided…

地球与行星天体物理 · 物理学 2024-11-05 Yuri Aikawa , Satoshi Okuzumi , Klaus Pontoppidan

Over the past decade, advancement of observational capabilities, specifically the Atacama Large Millimeter/submillimeter Array (ALMA) and SPHERE instrument, alongside theoretical innovations like pebble accretion, have reshaped our…

地球与行星天体物理 · 物理学 2024-09-30 Tilman Birnstiel

We describe an analytic model for an evolving protoplanetary disk driven by viscosity and a disk wind. The disk is heated by stellar irradiation and energy generated by viscosity. The evolution is controlled by 3 parameters: (i) the inflow…

地球与行星天体物理 · 物理学 2020-05-20 John Chambers

Observational manifestations of disturbances in a protoplanetary disk caused by a collision with a massive planet are studied. It is assumed that the planet moves along a parabolic trajectory that intersects the disk plane near the star.…

地球与行星天体物理 · 物理学 2025-07-01 Tatiana Demidova , Vitaliy Grigoryev

(Abridged) Protoplanetary disks are vital objects in star and planet formation, possessing all the material which may form a planetary system orbiting the new star. We investigate the synthesis of complex organic molecules (COMs) in disks…

Accurate measurement of temperature in protoplanetary disks is critical to understanding many key features of disk evolution and planet formation, from disk chemistry and dynamics, to planetesimal formation. This paper explores the…

地球与行星天体物理 · 物理学 2018-02-14 Erik Weaver , Andrea Isella , Yann Boehler

Protoplanetary discs at certain radii exhibit adverse radial entropy gradients that can drive oscillatory convection (`convective overstability'; COS). The ensuing hydrodynamical activity may reshape the radial thermal structure of the disc…

地球与行星天体物理 · 物理学 2021-08-25 Robert J. Teed , Henrik H. Latter

Protoplanets and circumplanetary disks are rather elusive in their thermal IR emission. Yet they are cornerstone to the most popular interpretations for the protoplanetary disks structures observed in the gas and dust density fields, even…

地球与行星天体物理 · 物理学 2019-10-16 Simon Casassus , Sebastian Perez

The rotation curves of regularly rotating disc galaxies are a unique probe of the gravitational potential and dark matter distribution. Until recently, matter decomposition of rotation curves at $z>0.5$ was challenging, not only due to the…

星系天体物理 · 物理学 2026-02-06 Fernanda Roman-Oliveira , Francesca Rizzo , Filippo Fraternali

Characterizing turbulence in protoplanetary disks is crucial for understanding how they accrete and spawn planets. Recent measurements of spectral line broadening promise to diagnose turbulence, with different lines probing different…

地球与行星天体物理 · 物理学 2015-06-19 Ji-Ming Shi , Eugene Chiang

Protoplanetary disks are quasi-steady structures whose evolution and dispersal determine the environment for planet formation. I review the theory of protoplanetary disk evolution and its connection to observations. Substantial progress has…

太阳与恒星天体物理 · 物理学 2011-08-25 Philip J. Armitage

Constraining the distribution of gas and dust in the inner 20 au of protoplanetary disks is difficult. At the same time, this region is thought to be responsible for most planet formation, especially around the water ice line at 3-10 au.…

Volatile species in protoplanetary discs can undergo a phase change from vapour to solid. These "snow-lines" can play vital roles in planet formation at all scales, from dust coagulation to planetary migration. In the outer regions of…

地球与行星天体物理 · 物理学 2020-05-20 James E. Owen

We present high-resolution $^{12}$CO and $^{13}$CO 2-1 ALMA observations, as well as optical and near-infrared spectroscopy, of the highly-inclined protoplanetary disk around SSTC2D J163131.2-242627. The spectral type we derive for the…

Large-scale radial transport of solids appears to be a fundamental consequence of protoplanetary disk evolution based on the presence of high temperature minerals in comets and the outer regions of protoplanetary disks around other stars.…

天体物理学 · 物理学 2009-11-13 Fred Ciesla

The disks that orbit young stars are the essential conduits and reservoirs of material for star and planet formation. Their structures, meaning the spatial variations of the disk physical conditions, reflect the underlying mechanisms that…

地球与行星天体物理 · 物理学 2020-11-11 Sean M. Andrews

With a series of numerical simulations, we analyze the thermo-hydrodynamical evolution of circumstellar disks containing Jupiter-size protoplanets. In the framework of the two-dimensional approximation, we consider an energy equation that…

天体物理学 · 物理学 2016-06-20 Gennaro D'Angelo , Thomas Henning , Willy Kley

We use resistive magnetohydrodynamical simulations with the nested grid technique to study the formation of protoplanetary disks around protostars from molecular cloud cores that provide the realistic environments for planet formation. We…

地球与行星天体物理 · 物理学 2015-05-14 Shu-ichiro Inutsuka , Masahiro N. Machida , Tomoaki Matsumoto