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ALMA observations of the debris disk around the young Solar Analog HD 107146
L. Ricci, J. M. Carpenter, B. Fu +3
We present ALMA continuum observations at a wavelength of 1.25 mm of the debris disk surrounding the 100 Myr old solar analog HD 107146. The continuum emission extends from…
ALMA observations of a misaligned binary protoplanetary disk system in Orion
Jonathan P. Williams, Rita K. Mann, James Di Francesco +6
We present ALMA observations of a wide binary system in Orion, with projected separation 440 AU, in which we detect submillimeter emission from the protoplanetary disks around each…
Probing the presence of planets in transition discs' cavities via warps: the case of TW Hya
Stefano Facchini, Luca Ricci, Giuseppe Lodato
We are entering the era in which observations of protoplanetary discs properties can indirectly probe the presence of massive planets or low mass stellar companions interacting wit…
On the gas content of transitional disks: a VLT/X-Shooter study of accretion and winds
C. F. Manara, L. Testi, A. Natta +4
Transitional disks (TDs) are thought to be a late evolutionary stage of protoplanetary disks with dust depleted inner regions. The mechanism responsible for this depletion is still…
Brown dwarf disks with ALMA
L. Ricci, L. Testi, A. Natta +3
We present ALMA continuum and spectral line data at 0.89 mm and 3.2 mm for three disks surrounding young brown dwarfs and very low mass stars in the Taurus star forming region. Dus…
Multiple and Fast: The Accretion of Ordinary Chondrite Parent Bodies
P. Vernazza, B. Zanda, R. P. Binzel +7
Although petrologic, chemical and isotopic studies of ordinary chondrites and meteorites in general have largely helped establish a chronology of the earliest events of planetesima…
Grain growth in the envelopes and disks of Class I protostars
A. Miotello, L. Testi, G. Lodato +5
We present new 3 mm ATCA data of two Class I Young Stellar Objects in the Ophiucus star forming region: Elias29 and WL12. For our analysis we compare them with archival 1.1 mm SMA…
Resolved Multifrequency Radio Observations of GG Tau
Sean M. Andrews, Claire J. Chandler, Andrea Isella +20
We present sub-arcsecond resolution observations of continuum emission associated with the GG Tau quadruple star system at wavelengths of 1.3, 2.8, 7.3, and 50 mm. These data confi…
Searching for circumplanetary disks around LkCa 15
Andrea Isella, Claire J. Chandler, John M. Carpenter +2
We present Karl G. Jansky Very Large Array (VLA) observations of the 7 mm continuum emission from the disk surrounding the young star LkCa 15. The observations achieve an angular r…
An ALMA Continuum Survey of Circumstellar Disks in the Upper Scorpius OB Association
John M. Carpenter, Luca Ricci, Andrea Isella
We present ALMA 880 micron continuum observations of 20 K and M-type stars in the Upper Scorpius OB association that are surrounded by protoplanetary disks. These data are used to…
Millimetre spectral indices of transition disks and their relation to the cavity radius
P. Pinilla, M. Benisty, T. Birnstiel +7
Transition disks are protoplanetary disks with inner depleted dust cavities and excellent candidates to investigate the dust evolution under the existence of a pressure bump. A pre…
ALMA Observations of the Orion Proplyds
Rita K. Mann, James Di Francesco, Doug Johnstone +6
We present ALMA observations of protoplanetary disks ("proplyds") in the Orion Nebula Cluster. We imaged 5 individual fields at 856um containing 22 HST-identified proplyds and dete…
On the structure of the transition disk around TW Hya
J. Menu, R. van Boekel, T. Henning +25
For over a decade, the structure of the inner cavity in the transition disk of TW Hydrae has been a subject of debate. Modeling the disk with data obtained at different wavelengths…
Dust Evolution in Protoplanetary Disks
Leonardo Testi, Tilman Birnstiel, Luca Ricci +8
(abridged) In the core accretion scenario for the formation of planetary rocky cores, the first step toward planet formation is the growth of dust grains into larger and larger agg…