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相关论文: Probing Inner-Edge of Dead Zones in Protoplanetary…

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ALMA has revolutionized our view of protoplanetary disks, revealing structures such as gaps, rings and asymmetries that indicate dust trapping as an important mechanism in the planet formation process. However, the high resolution images…

地球与行星天体物理 · 物理学 2018-10-19 Nienke van der Marel , Brenda Matthews , Ruobing Dong , Tilman Birnstiel , Andrea Isella

We present simulations of the capabilities of the Atacama Large Millimeter/submillimeter Array (ALMA) and of a Next Generation Very Large Array (ngVLA) to detect and resolve substructures due to terrestrial planets and Super-Earths in…

地球与行星天体物理 · 物理学 2020-12-16 Sarah Harter , Luca Ricci , Shangjia Zhang , Zhaohuan Zhu

Investigating the dynamical evolution of dust grains in proto-planetary disks is a key issue to understand how planets should form. We identify under which conditions dust settling can be constrained by high angular resolution observations…

地球与行星天体物理 · 物理学 2013-03-26 Y. Boehler , A. Dutrey , S. Guilloteau , V. Piétu

The formation and evolution of disks early in the protostellar phase is an area of study in which the ngVLA is poised to make significant breakthroughs. The high-sensitivity and resolution at wavelengths of 3~mm and longer will enable…

太阳与恒星天体物理 · 物理学 2018-10-18 John Tobin , Patrick Sheehan , Doug Johnstone , Rajeeb Sharma

Recent observations by the Atacama Large Millimeter/submillimeter Array (ALMA) of disks around young stars revealed distinct asymmetries in the dust continuum emission. In this work we want to study axisymmetric and non-axisymmetric…

地球与行星天体物理 · 物理学 2015-01-28 M. Flock , J. P. Ruge , N. Dzyurkevich , Th. Henning , H. Klahr , S. Wolf

The inner edge of the dead zone in protoplanetary disks has been shown to periodically go unstable, leading to accretion outbursts and annular substructure within the dead zone. While dust opacities play a key role in this process, the…

地球与行星天体物理 · 物理学 2026-04-21 Alexandros Ziampras , Tilman Birnstiel , Nicolas Kaufmann , Michael Cecil , Thomas Pfeil

In order to study the initial conditions of planet formation, it is crucial to obtain spatially resolved multi-wavelength observations of the innermost region of protoplanetary discs. We evaluate the advantage of combining observations with…

太阳与恒星天体物理 · 物理学 2019-02-20 Julia Kobus , Sebastian Wolf , Robert Brunngräber

The Next Generation Very Large Array (ngVLA) has excellent capabilities to unveil various dynamical and chemical processes in massive star formation at the unexplored innermost regions. Based on the recent observations of ALMA/VLA as well…

星系天体物理 · 物理学 2021-03-17 Kei E. I. Tanaka , Yichen Zhang , Kazuhito Motogi

To characterize the mechanisms of planet formation it is crucial to investigate the properties and evolution of protoplanetary disks around young stars, where the initial conditions for the growth of planets are set. Our goal is to study…

Understanding the temperature structure of protoplanetary disks is crucial for answering the fundamental question of when and where in the disks rocky planets like our own form. However, the thermal structure of the inner few au of the…

地球与行星天体物理 · 物理学 2023-04-28 Satoshi Okuzumi , Munetake Momose , Akimasa Kataoka

We present new Atacama Large Millimeter/submillimeter Array (ALMA) observations for three protoplanetary disks in Taurus at 2.9\,mm and comparisons with previous 1.3\,mm data both at an angular resolution of $\sim0.''1$ (15\,au for the…

Understanding planet formation requires to discern how dust grows in protoplanetary disks. An important parameter to measure in disks is the maximum dust grain size present. This is usually estimated through measurements of the dust opacity…

Our understanding of protoplanetary disks is rapidly departing from the classical view of a smooth, axisymmetric disk. This is in part thanks to the high angular resolution that (sub)mm observations can provide. Here we present the combined…

ALMA observations of protoplanetary disks acquired by the Disk Substructure at High Angular Resolution Project (DSHARP) resolve the dust and gas emission on angular scales as small as 3 astronomical units, offering an unprecedented detailed…

The vertical distribution of pebbles in protoplanetary disks is a fundamental property influencing planet formation, from dust aggregation to the assembly of planetary cores. In the outer region of protoplanetary disks, the intensity of the…

We present simulations of the capabilities of the Next Generation Very Large Array to image at high angular resolution substructures in the dust emission of protoplanetary disks. The main goal of this study is to investigate the kinds of…

地球与行星天体物理 · 物理学 2019-02-07 L. Ricci , M. Flock , D. Blanco , W. Lyra

We investigate the potential of the Atacama Large Millimeter/submillimeter Array (ALMA) and the Next Generation Very Large Array (ngVLA) to observe substructures in nearby young disks which are due to the gravitational interaction between…

地球与行星天体物理 · 物理学 2018-02-14 Luca Ricci , Shang-Fei Liu , Andrea Isella , Hui Li

How substructures and disk properties affect dust evolution and the delivery of solids and volatiles into planet-forming regions remains an open question. We present results from tailored dust evolution modeling of the AGE-PRO ALMA large…

Gap-like structures in protoplanetary disks are likely related to planet formation processes. In this paper, we present and analyze high resolution (0.17*0.11 arcsec) 1.3 mm ALMA continuum observations of the protoplanetary disk around the…

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
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