English
Related papers

Related papers: Exploring the Grain Properties in the Disk of HL T…

200 papers

We conducted a detailed radiative transfer modeling of the dust emission from the circumstellar disk around HL Tau. The goal of our study is to derive the surface density profile of the inner disk and its structure. In addition to 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…

The recent ALMA observations of the disc surrounding HL Tau reveal a very complex dust spatial distribution. We present a radiative transfer model accounting for the observed gaps and bright rings as well as radial changes of the emissivity…

How do dust grains in protoplanetary disks overcome rapid radial drift and grow from micron size particles to planets is not well understood. The key is to search for evidence of dust accumulation and growth as a function of radius in the…

Earth and Planetary Astrophysics · Physics 2022-12-14 Dafa Li , Yao Liu , Hongchi Wang , Yao Wang , Yuehui Ma

Aims. To comprehend the efficiency of dust evolution within protoplanetary disks, it is crucial to conduct studies of these disks using high-resolution observations at multiple wavelengths with the Atacama Large Millimeter/submillimeter…

Characterizing the physical properties of dust grains in a protoplanetary disk is critical to comprehending the planet formation process. Our study presents ALMA high-resolution observations of the young protoplanetary disk around DG Tau at…

Constraining dust properties of planet-forming disks via high angular resolution observations is fundamental to understanding how solids are trapped in substructures and how dust growth may be favored or accelerated therein. We use ALMA…

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…

Theoretical models of grain growth predict dust properties to change as a function of protoplanetary disk radius, mass, age and other physical conditions. We lay down the methodology for a multi-wavelength analysis of (sub-)mm and cm…

The vertical settling of dust grains in a circumstellar disk, characterized by their scale height, is a pivotal process in the formation of planets. This study offers in-depth analysis and modeling of the radial scale height profile of dust…

Earth and Planetary Astrophysics · Physics 2025-08-05 Haifeng Yang , Ian W. Stephens , Zhe-Yu Daniel Lin , Manuel Fernández-López , Zhi-Yun Li , Leslie W. Looney , Rachel Harrison

We use extensive global two-dimensional hydrodynamic disk gas+dust simulations with embedded planets, coupled with three dimensional radiative transfer calculations, to model the dust ring and gap structures in the HL Tau protoplanetary…

Earth and Planetary Astrophysics · Physics 2016-02-17 Sheng Jin , Shengtai Li , Andrea Isella , Hui Li , Jianghui Ji

Dust grains with sizes around (sub)mm are expected to couple only weakly to the gas motion in regions beyond 10 au of circumstellar disks. In this work, we investigate the influence of the spatial distribution of such grains on the (sub)mm…

Earth and Planetary Astrophysics · Physics 2016-05-04 J. P. Ruge , M. Flock , S. Wolf , N. Dzyurkevich , S. Fromang , Th. Henning , H. Klahr , H. Meheut

ALMA observations of protoplanetary disks confirm earlier indications that there is a clear difference between the dust and gas radial extents. The origin of this difference is still debated, with both radial drift of the dust and optical…

Solar and Stellar Astrophysics · Physics 2017-09-06 Stefano Facchini , Til Birnstiel , Simon Bruderer , Ewine F. van Dishoeck

The polarimetric observations on the protoplanetary disk around HL Tau have shown the scattering-induced polarization at ALMA Band 7, which indicates that the maximum dust size is $\sim 100~{\rm \mu m}$, while the Spectral Energy…

Earth and Planetary Astrophysics · Physics 2021-06-09 Takahiro Ueda , Akimasa Kataoka , Shangjia Zhang , Zhaohuan Zhu , Carlos Carrasco-González , Anibal Sierra

Grain growth in protoplanetary disks is the first step towards the formation of the rocky cores of planets. Models predict that grains grow, migrate, and fragment in the disk and predict varying dust properties as a function of radius, age,…

Solar and Stellar Astrophysics · Physics 2015-06-17 F. Trotta , L. Testi , A. Natta , A. Isella , L. Ricci

Spatially resolved polarized (sub-)mm emission has been observed for example in the protoplanetary disk around HL Tau. Magnetically aligned grains are commonly interpreted as the source of polarization. However, self-scattering by large…

Earth and Planetary Astrophysics · Physics 2016-08-31 A. Pohl , A. Kataoka , P. Pinilla , C. P. Dullemond , Th. Henning , T. Birnstiel

The first long-baseline ALMA campaign resolved the disk around the young star HL Tau into a number of axisymmetric bright and dark rings. Despite the very young age of HL Tau these structures have been interpreted as signatures for the…

The HD 163296 disk shows ring and gap substructures with ALMA observations. In addition, this is the only disk where the rings and gaps are spatially resolved in millimeter-wave polarization measurements. In this paper, we conduct radiative…

Earth and Planetary Astrophysics · Physics 2020-01-08 Satoshi Ohashi , Akimasa Kataoka

We present detailed models of irradiated T Tauri disks including dust grain growth with power-law size distributions. The models assume complete mixing between dust and gas and solve for the vertical disk structure…

Astrophysics · Physics 2009-11-06 Paola D'Alessio , Nuria Calvet , Lee Hartmann

The dust size in protoplanetary disks is a crucial parameter for understanding planet formation, while the observational constraints on dust size distribution have large uncertainties. In this study, we present a new method to constrain the…

Earth and Planetary Astrophysics · Physics 2023-09-01 Kiyoaki Doi , Akimasa Kataoka
‹ Prev 1 2 3 10 Next ›