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Constraints on the radial distribution of the dust properties in the CQ Tau protoplanetary disk
F. Trotta, L. Testi, A. Natta +2
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 p…
Accurate determination of accretion and photospheric parameters in Young Stellar Objects: the case of two candidate old disks in the Orion Nebula Cluster
C. F. Manara, G. Beccari, N. Da Rio +5
Current planet formation models are largely based on the observational constraint that protoplanetary disks have lifetime 3Myr. Recent studies, however, report the existence of PMS…
An azimuthal asymmetry in the LkHa 330 disk
Andrea Isella, Laura M. Pe'rez, John M. Carpenter +3
Theory predicts that giant planets and low mass stellar companions shape circumstellar disks by opening annular gaps in the gas and dust spatial distribution. For more than a decad…
ALMA and CARMA observations of Brown Dwarfs disks: testing the models of dust evolution
L. Ricci, L. Testi, A. Natta +4
The first steps toward planet formation involve the coagulation of small microscopic grains into larger and larger pebbles and rocks in gas-rich disks around young stars and brown…
The Herschel Gould Belt Survey in Chamaeleon II - Properties of cold dust in disks around young stellar objects
L. Spezzi, N. L. J. Cox, T. Prusti +14
We report on the Herschel Gould Belt survey (HGBS) of ChaII, focusing on the detection of Class I to III young stellar objects (YSOs). We aim at characterizing the circumstellar ma…
Explaining millimeter-sized particles in brown dwarf disks
P. Pinilla, T. Birnstiel, M. Benisty +5
Planets have been detected around a variety of stars, including low-mass objects, such as brown dwarfs. However, such extreme cases are challenging for planet formation models. Rec…
CARMA interferometric observations of 2MASS J044427+2512: the first spatially resolved observations of thermal emission of a brown dwarf disk
L. Ricci, A. Isella, J. M. Carpenter +1
We present CARMA 1.3 mm continuum data of the disk surrounding the young brown dwarf 2MASS J044427+2512 in the Taurus molecular cloud. The high angular resolution of the CARMA obse…