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ALMA and VLA Observations of the HD 141569 System
Jacob Aaron White, A. C. Boley, M. A. MacGregor +2
We present VLA 9 mm (33 GHz) observations of the HD 141569 system from semester 16A. The observations achieve a resolution of 0.25 arcsec ( au) and a sensitivity of $4.7~μ\…
ALMA Observations of the Young Substellar Binary System 2M1207
L. Ricci, P. Cazzoletti, I. Czekala +10
We present ALMA observations of the 2M1207 system, a young binary made of a brown dwarf with a planetary-mass companion at a projected separation of about 40 au. We detect emission…
Detection of exocometary CO within the 440 Myr-old Fomalhaut belt: a similar CO+CO ice abundance in exocomets and Solar System comets
L. Matrà, M. A. MacGregor, P. Kalas +13
Recent ALMA observations present mounting evidence for the presence of exocometary gas released within Kuiper belt analogues around nearby main sequence stars. This represents a un…
New constraints on the millimetre emission of six debris disks
Jonathan P. Marshall, S. T. Maddison, E. Thilliez +4
The presence of dusty debris around main sequence stars denotes the existence of planetary systems. Such debris disks are often identified by the presence of excess continuum emiss…
Radio Monitoring of Protoplanetary Discs
C. Ubach, S. T. Maddison, C. M. Wright +3
Protoplanetary disc systems observed at radio wavelengths often show excess emission above that expected from a simple extrapolation of thermal dust emission observed at short mill…