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Exocometary gas structure, origin and physical properties around Pictoris through ALMA CO multi-transition observations
L. Matrà, W. R. F. Dent, M. C. Wyatt +9
Recent ALMA observations unveiled the structure of CO gas in the 23 Myr-old Pictoris planetary system, a component that has been discovered in many similarly young debris disks…
Debris Disks in the Scorpius-Centaurus OB Association Resolved by ALMA
Jesse Lieman-Sifry, A. Meredith Hughes, John M. Carpenter +3
We present a CO(2-1) and 1240 um continuum survey of 23 debris disks with spectral types B9-G1, observed at an angular resolution of 0.5-1 arcsec with the Atacama Large Millimeter/…
Exocometary gas in the HD 181327 debris ring
S. Marino, L. Matra, C. Stark +14
An increasing number of observations have shown that gaseous debris discs are not an exception. However, until now we only knew of cases around A stars. Here we present the first d…
Ringed Substructure and a Gap at 1 AU in the Nearest Protoplanetary Disk
Sean M. Andrews, David J. Wilner, Zhaohuan Zhu +8
We present long-baseline Atacama Large Millimeter/submillimeter Array (ALMA) observations of the 870 micron continuum emission from the nearest gas-rich protoplanetary disk, around…
Resolved Gas Interior to the Dust Rings of the HD 141569 Disk
Kevin M. Flaherty, A. Meredith Hughes, Sean M. Andrews +6
The disk around HD 141569 is one of a handful of systems whose weak infrared emission is consistent with a debris disk, but still has a significant reservoir of gas. Here we report…