J. Péricaud
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View article: An ALMA/NOEMA study of gas dissipation and dust evolution in the 5 Myr-old HD 141569A hybrid disc
An ALMA/NOEMA study of gas dissipation and dust evolution in the 5 Myr-old HD 141569A hybrid disc Open
Context. The study of gas-rich debris discs is fundamental to characterising the transition between protoplanetary discs and debris discs. Aims. We determine the physical parameters of the brightest gas-rich debris disc orbiting HD 141569A…
View article: The hybrid disks: a search and study to better understand evolution of disks
The hybrid disks: a search and study to better understand evolution of disks Open
Context. The increased sensitivity of millimeter-wave facilities now makes possible the detection of low amounts of gas in debris disks. Some of the gas-rich debris disks harbor peculiar properties, with possible pristine gas and secondary…
View article: Discovery of concentric broken rings at sub-arcsec separations in the HD 141569A gas-rich, debris disk with VLT/SPHERE
Discovery of concentric broken rings at sub-arcsec separations in the HD 141569A gas-rich, debris disk with VLT/SPHERE Open
Observations with SPHERE of HD141569A revealed a series of concentric ringlets located at 116-46AU and matching the formerly detected extended emission in the mid-IR and visible, although finer details are detected here. The brightest ring…
View article: HD141569A: disk dissipation caught in action
HD141569A: disk dissipation caught in action Open
Debris disks are usually thought to be gas-poor, the gas being dissipated by accretion or evaporation during the protoplanetary phase. HD141569A is a 5 Myr old star harboring a famous debris disk, with multiple rings and spiral features. W…