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Type II migration strikes back -- An old paradigm for planet migration in discs
Chiara E. Scardoni, Giovanni P. Rosotti, Giuseppe Lodato +1
In this paper we analyse giant gap-opening planet migration in protoplanetary discs, focusing on the type II migration regime. According to standard type II theory, planets migrate…
Effects of photoevaporation on protoplanetary disc `isochrones'
Alice Somigliana, Claudia Toci, Giuseppe Lodato +2
Protoplanetary discs are the site of star and planet formation, and their evolution and consequent dispersal deeply affect the formation of planetary systems. In the standard scena…
Spiral arms in the proto-planetary disc HD100453 detected with ALMA: evidence for binary-disc interaction and a vertical temperature gradient
G. P. Rosotti, M. Benisty, A. Juhász +7
Scattered light high-resolution imaging of the proto-planetary disc orbiting HD100453 shows two symmetric spiral arms, possibly launched by an external stellar companion. In this p…
A solution to the proplyd lifetime problem
Andrew J. Winter, Cathie J. Clarke, Giovanni P. Rosotti +2
Protoplanetary discs (PPDs) in the Orion Nebula Cluster (ONC) are irradiated by UV fields from the massive star C. This drives thermal winds, inducing mass loss rates of up to…
High gas/dust size ratio indicating efficient radial drift in the mm-faint CX Tau disk
S. Facchini, E. F. van Dishoeck, C. F. Manara +7
The large majority of protoplanetary disks have very compact (AU) continuum emission at mm wavelengths. However, high angular resolution observations that resolve the…
A dust and gas cavity in the disc around CQ Tau revealed by ALMA
M. Giulia Ubeira Gabellini, Anna Miotello, Stefano Facchini +23
The combination of high resolution and sensitivity offered by ALMA is revolutionizing our understanding of protoplanetary discs, as their bulk gas and dust distributions can be stu…
On the millimetre continuum flux-radius correlation of proto-planetary discs
Giovanni P. Rosotti, Richard A. Booth, Marco Tazzari +3
A correlation between proto-planetary disc radii and sub-mm fluxes has been recently reported. In this Letter we show that the correlation is a sensitive probe of grain growth proc…
The time evolution of dusty protoplanetary disc radii: observed and physical radii differ
Giovanni P. Rosotti, Marco Tazzari, Richard A. Booth +3
Proto-planetary disc surveys conducted with ALMA are measuring disc radii in multiple star forming regions. The disc radius is a fundamental quantity to diagnose whether discs unde…
Revealing signatures of planets migrating in protoplanetary discs with ALMA multi-wavelength observations
Pooneh Nazari, Richard A. Booth, Cathie J. Clarke +4
Recent observations show that rings and gaps are ubiquitous in protoplanetary discs. These features are often interpreted as being due to the presence of planets; however, the effe…
External photoevaporation of protoplanetary discs in Cygnus OB2: linking discs to star formation dynamical history
Andrew J. Winter, Cathie J. Clarke, Giovanni P. Rosotti
Many stars form in regions of enhanced stellar density, wherein the influence of stellar neighbours can have a strong influence on a protoplanetary disc (PPD) population. In partic…
Highly structured disk around the planet host PDS 70 revealed by high-angular resolution observations with ALMA
M. Keppler, R. Teague, J. Bae +19
PDS 70b is the most robustly detected young planet imaged in the gap of a transition disk so far, found at a separation of ~195 mas (~22 au) from its host star and at a position an…