The circumstellar disk of FS Tau B - A self-consistent model based on observations in the mid-infrared with NACO -

Abstract

Protoplanetary disks are a byproduct of the star formation process. In the dense mid-plane of these disks, planetesimals and planets are expected to form. The first step in planet formation is the growth of dust particles from submicrometer-sized grains to macroscopic mm-sized aggregates. The grain growth is accompanied by radial drift and vertical segregation of the particles within the disk. To understand this essential evolutionary step, spatially resolved multi-wavelength observations as well as photometric data are necessary which reflect the properties of both disk and dust. We present the first spatially resolved image obtained with NACO at the VLT in the L${}_{\text{p}}$ band of the near edge-on protoplanetary disk FS Tau B. Based on this new image, a previously published Hubble image in H band and the spectral energy distribution from optical to millimeter wavelengths, we derive constraints on the spatial dust distribution and the progress of grain growth. For this purpose we perform a disk modeling using the radiative transfer code MC3D. Radial drift and vertical sedimentation of the dust are not considered. We find a best-fit model which features a disk extending from $2\text{AU}$ to several hundreds AU with a moderately decreasing surface density and $M_{\text{disk}}=2.8\times 10^{-2}{\text{M}}_{\odot }$. The inclination amounts to $i=80^{\circ }$. Our findings indicate that substantial dust grain growth has taken place and that grains of a size equal to or larger than $1\text{mm}$ are present in the disk. In conclusion, the parameters describing the vertical density distribution are better constrained than those describing the radial disk structure.

arXiv comment10 pages, 9 figures, 2 tables

References in corpus (23)

• Dust Grain Size Distributions and Extinction in the Milky Way, LMC, and SMC
• Resolved Images of Large Cavities in Protoplanetary Transition Disks
• High Resolution Submillimeter Constraints on Circumstellar Disk Structure
• The Disk Population of the Taurus Star-Forming Region
• Radiative Equilibrium and Temperature Correction in Monte Carlo Radiation Transfer
• On the Evolutionary Status of Class I Stars and Herbig-Haro Energy Sources in Taurus-Auriga
• HST/NICMOS Imaging of Disks and Envelopes Around Very Young Stars
• Probing dust grain evolution in IM Lupi's circumstellar disc. Multi-wavelength observations and modelling of the dust disc
• A Spectroscopic Survey of Subarcsecond Binaries in the Taurus-Auriga Dark Cloud with the Hubble Space Telescope
• The Circumstellar Disk of the Butterfly Star in Taurus
• Mie Scattering by Ensembles of Particles with Very Large Size Parameters
• Constraining the Planetary System of Fomalhaut Using High-Resolution ALMA Observations
• High-resolution Near-Infrared Images and Models of the Circumstellar Disk in HH 30
• MC3D - 3D Continuum Radiative Transfer, Version 2
• Plateau de Bure Interferometer Observations of the Disk and Outflow of HH30
• L' and M' Standard Stars for the Mauna Kea Observatories Near-Infrared System
• Efficient radiative transfer in dust grain mixtures
• The circumstellar disc in the Bok globule CB 26: Multi-wavelength observations and modelling of the dust disc and envelope
• Infrared Nebulae Around Young Stellar Objects
• Vertical settling and radial segregation of large dust grains in the circumstellar disk of the Butterfly Star
• The circumstellar disk of HH 30. Searching for signs of disk evolution with multi-wavelength modeling
• Gas and Dust Toward DG Tau B and VV CrA
• Mid-infrared observations of the transitional disks around DH Tau, DM Tau, and GM Aur

Cited by in corpus (12)

• Masses and Implications for Ages of Low-Mass Pre-Main Sequence Stars in Taurus and Ophiuchus
• Dust survival rates in clumps passing through the Cas A reverse shock I: results for a range of clump densities
• The Ring Structure in the MWC 480 Disk Revealed by ALMA
• Protoplanetary Disk Masses from Radiative Transfer Modeling: A Case Study in Taurus
• The properties of the inner disk around HL Tau: Multi-wavelength modeling of the dust emission
• ALMA observations of the nearby AGB star L${}_2$ Puppis. II. Gas disk properties derived from ${}^{12}$CO and ${}^{13}$CO $J=$3$-$2 emission
• Constraints on observing brightness asymmetries in protoplanetary disks at solar system scale
• Dust mass in protoplanetary disks with porous dust opacities
• Characterization of mid-infrared polarization due to scattering in protoplanetary disks
• Two epoch spectro-imagery of FS Tau B outflow system
• Wavelength-dependent far-infrared polarization of HL Tau observed with SOFIA/HAWC+
• Observations of highly inclined disks with ALMA. Results from 12CO gas and continuum observations