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Using three-dimensional stellar kinematic data from simulated galaxies, we examine the efficacy of a Jeans equation analysis in reconstructing the total disk surface density, including the dark matter, at the "Solar" radius. Our simulation…

Astrophysics of Galaxies · Physics 2016-01-18 G. N. Candlish , R. Smith , C. Moni Bidin , B. K. Gibson

Gas mass remains one of the most difficult protoplanetary disk properties to constrain. With much of the protoplanetary disk too cold for the main gas constituent, H2, to emit, alternative tracers such as dust, CO, or the H2 isotopolog HD…

High resolution ALMA observations of protoplanetary disks have revealed that many, if not all primordial disks consist of ring-like dust structures. The origin of these dust rings remains unclear, but a common explanation is the presence of…

Earth and Planetary Astrophysics · Physics 2018-11-07 Nienke van der Marel , Jonathan Williams , Simon Bruderer

We apply our 3D debris disk model, SMACK, to simulate a planet on a circular orbit near a ring of planetesimals that are experiencing destructive collisions. Previous simulations of a planet opening a gap in a collisionless debris disk have…

Earth and Planetary Astrophysics · Physics 2015-06-23 Erika R. Nesvold , Marc J. Kuchner

Planets form in protoplanetary discs. Their masses, distribution, and orbits sensitively depend on the structure of the protoplanetary discs. However, what sets the initial structure of the discs in terms of mass, radius and accretion rate…

Astrophysics of Galaxies · Physics 2020-03-11 Patrick Hennebelle , Benoît Commerçon , Yueh-Ning Lee , Sébastien Charnoz

We study the dynamics of gas and dust in a protoplanetary disk in the presence of embedded planets. We investigate the conditions for dust-gap formation in terms of particle size and planetary mass. We also monitor the amount of dust that…

Astrophysics · Physics 2009-11-11 S. -J. Paardekooper , G. Mellema

We predict how protoplanetary disks around low-mass young stars would appear in molecular lines observed with the ALMA interferometer. Our goal is to identify those molecules and transitions that can be used to probe and distinguish between…

Astrophysics · Physics 2009-11-13 D. Semenov , Ya. Pavlyuchenkov , Th. Henning , S. Wolf , R. Launhardt

Increasingly better observations of resolved protoplanetary disks show a wide range of conditions in which planets can be formed. Many transitional disks show gaps in their radial density structure, which are usually interpreted as…

Earth and Planetary Astrophysics · Physics 2020-01-22 Germán Chaparro Molano , Frank Bautista , Yamila Miguel

We investigate how the formation and structure of circumplanetary disks (CPDs) varies with planet mass and protoplanetary disk aspect ratio. Using static mesh refinement and a near-isothermal equation of state, we perform a small parameter…

Earth and Planetary Astrophysics · Physics 2025-05-15 Sabina Sagynbayeva , Rixin Li , Aleksandra Kuznetsova , Zhaohuan Zhu , Yan-Fei Jiang , Philip J. Armitage

We have performed three-dimensional two-fluid (gas-dust) hydrodynamical models of circumstellar discs with embedded protoplanets (3 - 333 M\oplu) and small solid bodies (radii 10cm to 10m). We find that high mass planets (\gtrsim Saturn…

Earth and Planetary Astrophysics · Physics 2015-06-04 Ben A. Ayliffe , Guillaume Laibe , Daniel J. Price , Matthew R. Bate

Recent high angular resolution observations of protoplanetary disks at different wavelengths have revealed several kinds of structures, including multiple bright and dark rings. Embedded planets are the most used explanation for such…

Earth and Planetary Astrophysics · Physics 2017-08-23 P. Pinilla , A. Pohl , S. M. Stammler , T. Birnstiel

The potential for planet formation of a circumstellar disk depends on the dust and gas reservoirs, which evolve as a function of the disk age. The ALMA Large Program AGE-PRO has measured several disk properties across three star-forming…

The collapse of interstellar gaseous clouds towards a protostar leads to the formation of accretion disks around the central star. Such disks can be dynamically stable if they settle in an axisymmetric state. In this letter, we investigate…

Solar and Stellar Astrophysics · Physics 2020-09-07 Florian Ragossnig , Lukas Gehrig , Ernst A. Dorfi , Daniel Steiner , Alexander Stökl

ALMA surveys have suggested that protoplanetary disks are not massive enough to form the known exoplanet population, under the assumption that the millimeter continuum emission is optically thin. In this work, we investigate how the mass…

By carrying out two-dimensional two-fluid global simulations, we have studied the response of dust to gap formation by a single planet in the gaseous component of a protoplanetary disk - the so-called "dust filtration" mechanism. We have…

Solar and Stellar Astrophysics · Physics 2015-06-05 Zhaohuan Zhu , Richard P. Nelson , Ruobing Dong , Catherine Espaillat , Lee Hartmann

Transitional disks around young stars are promising candidates to look for recently formed, embedded planets. Planet-disk interaction models predict that planets clear a gap in the gas while trapping dust at larger radii. Other physical…

ALMA has spatially resolved over 200 annular structures in protoplanetary discs, many of which are suggestive of the presence of planets. Constraining the mass of these putative planets is quite degenerate for it depends on the disc…

Earth and Planetary Astrophysics · Physics 2023-06-14 Yinhao Wu , Clément Baruteau , Sergei Nayakshin

We re-process the Atacama Large Millimeter/Submillimeter Array (ALMA) long-baseline science verification data taken toward HL Tauri. As shown by the previous work, we confirm that the high spatial resolution (~ 0."019, corresponding to ~…

Earth and Planetary Astrophysics · Physics 2016-03-09 Eiji Akiyama , Yasuhiro Hasegawa , Masahiko Hayashi , Satoru Iguchi

In the past decade, ALMA observations of protoplanetary disks revealed various substructures including gaps and rings. Their origin may be probed through statistical studies on the physical properties of the substructures. We present the…