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相关论文: Applying a Particle-only Model to the HL Tau Disk

200 篇论文

High resolution ALMA observations revealed a variety of rich substructures in numerous protoplanetary disks. These structures consist of rings, gaps and asymmetric features. It is debated whether planets can be accounted for these…

地球与行星天体物理 · 物理学 2021-03-31 Peter J. Rodenkirch , Thomas Rometsch , Cornelis P. Dullemond , Philipp Weber , Wilhelm Kley

A giant planet embedded in a protoplanetary disk forms a gap. An analytic relationship among the gap depth, planet mass $M_{p}$, disk aspect ratio $h_p$, and viscosity $\alpha$ has been found recently, and the gap depth can be written in…

Consistent modeling of protoplanetary disks requires the simultaneous solution of both continuum and line radiative transfer, heating/cooling balance between dust and gas and, of course, chemistry. Such models depend on panchromatic…

We present a new set of analytical solutions to model the steady state structure of a protoplanetary disc with a magnetically-driven wind. Our model implements a parametrization of the stresses involved and the wind launching mechanism in…

星系天体物理 · 物理学 2018-01-31 Fazeleh Khajenabi , Mohsen Shadmehri , Martin E. Pessah , Rebecca G. Martin

Based on Atacama Large Millimeter/submillimeter Array (ALMA) observations, compact protoplanetary disks with dust radii of $r\lesssim 20-40$ au were found to be dominant in nearby low-mass star formation regions. However, their…

We have imaged the disc of the young star HL Tau using the VLA at 1.3 cm, with 0.08" resolution (as small as the orbit of Jupiter). The disc is around half the stellar mass, assuming a canonical gas-mass conversion from the measured mass in…

天体物理学 · 物理学 2009-11-13 J. S. Greaves , A. M. S. Richards , W. K. M. Rice , T. W. B. Muxlow

Rings are the most frequently revealed substructure in ALMA dust observations of protoplanetary disks, but their origin is still hotly debated. In this paper, we identify dust substructures in 12 disks and measure their properties to…

Despite intensive studies of protoplanetary disks, there is still no reliable way to determine their total mass and their surface density distribution, quantities that are crucial for describing both the structure and the evolution of disks…

太阳与恒星天体物理 · 物理学 2016-10-26 Anna Miotello , Ewine F. van Dishoeck , Mihkel Kama , Simon Bruderer

In recent years, ALMA has been able to observe large-scale substructures within protoplanetary disks. Comparison with the predictions from models of planet-disk interaction has indicated that most of these disk substructures can be…

地球与行星天体物理 · 物理学 2022-04-06 Benjamin Burrill , Luca Ricci , Sarah Harter , Shangjia Zhang , Zhaohuan Zhu

We model the ALMA and VLA millimeter radial profiles of the disk around HL Tau to constrain the properties of the dust grains. We adopt the disk evolutionary models of Lynden-Bell \& Pringle and calculate their temperature and density…

太阳与恒星天体物理 · 物理学 2020-01-08 Carlos Tapia , Susana Lizano , Anibal Sierra , Carlos Carrasco-González , Elly Bayona-Bobadilla

Recent observations have revealed a gallery of substructures in the dust component of nearby protoplanetary discs, including rings, gaps, spiral arms, and lopsided concentrations. One interpretation of these substructures is the existence…

地球与行星天体物理 · 物理学 2020-01-08 Chao-Chin Yang , Zhaohuan Zhu

Rings and asymmetries in protoplanetary disks are considered as signposts of ongoing planet formation. In this work, we conduct three-dimensional radiative transfer simulations to model the intriguing disk around HD 143006 that has three…

地球与行星天体物理 · 物理学 2022-11-08 Yao Liu , Mario Flock , Min Fang

Observations of bright protoplanetary disks often show annular gaps in their dust emission. One interpretation of these gaps is disk-planet interaction. If so, fitting models of planetary gaps to observed protoplanetary disk gaps can reveal…

地球与行星天体物理 · 物理学 2020-09-09 Sayantan Auddy , Min-Kai Lin

The presence of rings and gaps in protoplanetary discs are often ascribed to planet-disc interactions, where dust and pebbles are trapped at the edges of planetary induced gas gaps. Recent work has shown that these are likely sites for…

地球与行星天体物理 · 物理学 2021-04-21 L. E. J. Eriksson , T. Ronnet , A. Johansen

Gravitational interactions between a protoplanetary disk and its embedded planet is one of the formation mechanisms of gaps and rings found in recent ALMA observations. To quantify the gap properties measured in not only surface density but…

地球与行星天体物理 · 物理学 2019-11-06 Han Gyeol Yun , Woong-Tae Kim , Jaehan Bae , Cheongho Han

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…

Planets can open cavities (gaps) in the protoplanetary gaseous discs in which they are born by exerting gravitational torques. Viscosity counters these torques and limits the depletion of the gaps. We present a simple one-dimensional scheme…

地球与行星天体物理 · 物理学 2018-07-18 Sivan Ginzburg , Re'em Sari

The migration of planetary cores embedded in a protoplanetary disk is an important mechanism within planet-formation theory, relevant for the architecture of planetary systems. Consequently, planet migration is actively discussed, yet often…

地球与行星天体物理 · 物理学 2019-11-06 Philipp Weber , Sebastián Pérez , Pablo Benítez-Llambay , Oliver Gressel , Simon Casassus , Leonardo Krapp

The advent of high-resolution, near-infrared instruments such as VLT/SPHERE and Gemini/GPI has helped uncover a wealth of substructure in planet-forming disks, including large, prominent spiral arms in MWC 758, SAO 206462, and V1247 Ori…

地球与行星天体物理 · 物理学 2024-10-23 Dhruv Muley , Julio David Melon Fuksman , Hubert Klahr