150 citations · 1.1k across the 46 of their papers we have counts for
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Bridging magnetothermal winds and photoevaporation to model discs dispersal
Giovanni Picogna, Barbara Ercolano
Protoplanetary disc dispersal is driven by two processes usually modelled separately: photoevaporative and magnetohydrodynamic (MHD) disc winds. Global simulations indicate that in…
Dust torques for realistic dust size distributions
V. Roatti, G. Picogna, F. Marzari
Previous studies have shown that a population of dust particles with a fixed Stokes number can exert a substantial torque on a low-mass planet embedded in a protoplanetary disk, mo…
The dispersal of compact protoplanetary discs
Giovanni Picogna, Barbara Ercolano
Compact protoplanetary discs are becoming increasingly prominent in observations. Their dispersal pathways may differ substantially from those of extended discs. We aim to quantify…
Dust distribution in circumstellar disks harboring multi-planet systems. II. Super-thermal mass planets
V. Roatti, G. Picogna, F. Marzari
Theoretical formation models and exoplanet detection surveys indicate that systems with multiple giant planets are common. We investigate how multiple super-thermal mass planets em…
Dust distribution in circumstellar disks harboring multi-planet systems. I. Sub-thermal mass planets
V. Roatti, G. Picogna, F. Marzari
We investigate the formation of dust gaps in circumstellar disks driven by the presence of multiple low-mass planets, focusing on the distinct physical mechanisms that operate acro…
Photoevaporation of protoplanetary discs with PLUTO+PRIZMO I. Lower X-ray-driven mass-loss rates due to enhanced cooling
Andrew D. Sellek, Tommaso Grassi, Giovanni Picogna +3
Context: Photoevaporation is an important process for protoplanetary disc dispersal but there has so far been a lack of consensus from simulations over the mass-loss rates and the…
The interplay between forming planets and photoevaporating discs II: Wind-driven gas redistribution
Michael L. Weber, Giovanni Picogna, Barbara Ercolano
Disc winds and planet-disc interactions are two crucial mechanisms that define the structure, evolution and dispersal of protoplanetary discs. While winds are capable of removing m…
FargoCPT: A 2D Multi-Physics Code for Simulating the Interaction of Disks with Stars, Planets and Particles
Thomas Rometsch, Lucas M. Jordan, Tobias W. Moldenhauer +6
Context: Planet-disk interactions play a crucial role in the understanding of planet formation and disk evolution. There are multiple numerical tools available to simulate these in…
Hall-magnetohydrodynamic simulations of X-ray photoevaporative protoplanetary disc winds
Eleftheria Sarafidou, Oliver Gressel, Giovanni Picogna +1
Understanding the complex evolution of protoplanetary disks (PPDs) and their dispersal via energetic stellar radiation are prominent challenges in astrophysics. It has recently bee…
High-resolution [OI] line spectral mapping of TW Hya consistent with X-ray driven photoevaporation
Ch. Rab, M. Weber, G. Picogna +2
Theoretical models indicate that photoevaporative and magnetothermal winds play a crucial role in the evolution and dispersal of protoplanetary disks and affect the formation of pl…
Lowest accreting protoplanetary discs consistent with X-ray photoevaporation driving their final dispersal
Barbara Ercolano, Giovanni Picogna, Kristina Monsch
Photoevaporation from high energy stellar radiation has been thought to drive the dispersal of protoplanetary discs. Different theoretical models have been proposed, but their pred…
Observability of Photoevaporation Signatures in the Dust Continuum Emission of Transition Discs
Giovanni Picogna, Carolina Schäfer, Barbara Ercolano +3
Photoevaporative disc winds play a key role in our understanding of circumstellar disc evolution, especially in the final stages, and they might affect the planet formation process…
Towards a population synthesis of discs and planets. II. Confronting disc models and observations at the population level
Alexandre Emsenhuber, Remo Burn, Jesse Weder +4
Aims. We want to find the distribution of initial conditions that best reproduces disc observations at the population level. Methods. We first ran a parameter study using a 1D mode…
Modelling photo-evaporation in planet forming discs
Barbara Ercolano, Giovanni Picogna
Planets are born from the gas and dust discs surrounding young stars. Energetic radiation from the central star can drive thermal outflows from the discs atmospheres, strongly affe…
The interplay between forming planets and photo-evaporating discs I: Forbidden line diagnostics
Michael L. Weber, Barbara Ercolano, Giovanni Picogna +1
Disc winds and planet formation are considered to be two of the most important mechanisms that drive the evolution and dispersal of protoplanetary discs and in turn define the envi…
High-resolution ALMA observations of transition disk candidates in Lupus
Nienke van der Marel, Jonathan P. Williams, Giovanni Picogna +6
Transition disks with small inner dust cavities are interesting targets for the study of disk clearing mechanisms. Such disks have been identified through a deficit in the infrared…
Dust entrainment in photoevaporative winds: Synthetic observations of transition disks
R. Franz, G. Picogna, B. Ercolano +4
X-ray- and extreme-ultraviolet- (XEUV-) driven photoevaporative winds acting on protoplanetary disks around young T-Tauri stars may strongly impact disk evolution, affecting both g…
Large gaps and high accretion rates in photoevaporative transition disks with a dead zone
Matías Gárate, Timmy N. Delage, Jochen Stadler +7
Observations of young stars hosting transition disks show that several of them have high accretion rates, despite their disks presenting extended cavities in their dust component.…
The dispersal of protoplanetary discs -- III: Influence of stellar mass on disc photoevaporation
Giovanni Picogna, Barbara Ercolano, Catherine C. Espaillat
The strong X-ray irradiation from young solar-type stars may play a crucial role in the thermodynamics and chemistry of circumstellar discs, driving their evolution in the last sta…
Dust entrainment in photoevaporative winds: Densities and imaging
R. Franz, B. Ercolano, S. Casassus +5
X-ray- and EUV- (XEUV-) driven photoevaporative winds acting on protoplanetary disks around young T-Tauri stars may crucially impact disk evolution, affecting both gas and dust dis…
The dispersal of protoplanetary discs. II: Photoevaporation models with observationally derived irradiating spectra
Barbara Ercolano, Giovanni Picogna, Kristina Monsch +2
Young solar-type stars are known to be strong X-ray emitters and their X-ray spectra have been widely studied. X-rays from the central star may play a crucial role in the thermodyn…
Disks in close binary stars: γ-Cephei revisited
Lucas M. Jordan, Wilhelm Kley, Giovanni Picogna +1
Close binaries ( au) are known to harbor planets, yet planet formation is unlikely to succeed in such systems. Studying the dynamics of disks in close binaries can he…
The imprint of X-ray photoevaporation of planet-forming discs on the orbital distribution of giant planets -- II. Theoretical predictions
Kristina Monsch, Giovanni Picogna, Barbara Ercolano +1
Numerical models have shown that disc dispersal via internal photoevaporation driven by the host star can successfully reproduce the observed pile-up of warm Jupiters near 1-2 au.…
Giant planet migration during the disc dispersal phase
Kristina Monsch, Giovanni Picogna, Barbara Ercolano +1
Transition discs are expected to be a natural outcome of the interplay between photoevaporation (PE) and giant planet formation. Massive planets reduce the inflow of material from…