2013A&A...558A..64T


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST01:15:36

2013A&A...558A..64T - Astronomy and Astrophysics, volume 558A, 64-64 (2013/10-1)

Constraints on the radial distribution of the dust properties in the CQ Tauri protoplanetary disk.

TROTTA F., TESTI L., NATTA A., ISELLA A. and RICCI L.

Abstract (from CDS):

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, and physical properties. High-angular resolution observations at more than one (sub-)mm wavelength are the essential tool for constraining grain growth and migration on the disk midplane. We developed a procedure to analyze self-consistently multiwavelength (sub-)mm continuum interferometric observations of protoplanetary disks to constrain the radial distribution of dust properties. We apply this technique to existing multifrequency continuum mm observations of the disk around CQ Tau, a A8 pre-main sequence star with a well-studied disk. We demonstrate that our models can be used to simultaneously constrain the disk and dust structure. In CQ Tau, the best-fitting model has a radial dependence of the maximum grain size, which decreases from a few cm in the inner disk (<40AU) to a few mm at 80AU. Nevertheless, the currently available dataset does not allow us to exclude the possibility of a uniform grain size distribution at a 3σ level.

Abstract Copyright:

Journal keyword(s): protoplanetary disks - stars: pre-main sequence - circumstellar matter - stars: individual: CQ Tauri - dust, extinction - submillimeter: planetary systems

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1216 0
2 V* CQ Tau Ae* 05 35 58.4671238887 +24 44 54.086375712 11.290 10.780 10.000   8.33 F5IVe 255 0
3 EM* AS 209 Or* 16 49 15.3035547820 -14 22 08.642015783   12.62 11.28     K4Ve 233 0

    Equat.    Gal    SGal    Ecl

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2020.07.04-01:15:36

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