Evolution of circumstellar discs in young star-forming regions

Abstract

The evolution of circumstellar discs is influenced by their surroundings. The relevant processes include external photoevaporation due to nearby stars, and dynamical truncations. The impact of these processes on disc populations depends on the star-formation history and on the dynamical evolution of the region. Since star formation history and the phase-space characteristics of the stars are important for the evolution of the discs, we start simulating the evolution of the star cluster with the results of molecular cloud collapse simulations. In the simulation we form stars with circumstellar discs, which can be affected by different processes. Our models account for the viscous evolution of the discs, internal and external photoevaporation of gas, external photoevaporation of dust, and dynamical truncations. All these processes are resolved together with the dynamical evolution of the cluster, and the evolution of the stars. An extended period of star formation, lasting for at least 2 Myr, results in some discs being formed late. These late formed discs have a better chance of survival because the cluster gradually expands with time, and a lower local stellar density reduces the effects of photoevaporation and dynamical truncation. Late formed discs can then be present in regions of high UV radiation, solving the proplyd lifetime problem. We also find a considerable fraction of discs that lose their gas content, but remain sufficiently rich in solids to be able to form a rocky planetary system.

Accepted for publication in MNRAS. 15 pages, 12 figures

References in corpus (43)

• The NumPy array: a structure for efficient numerical computation
• Gas- and dust evolution in protoplanetary disks
• A Steeper than Linear Disk Mass-Stellar Mass Scaling Relation
• The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. A Statistical Characterization of Class 0 and I Protostellar Disks
• The Stellar Population of the Chamaeleon I Star-Forming Region
• The lifecycle of molecular clouds in nearby star-forming disc galaxies
• The Coupled Physical Structure of Gas and Dust in the IM Lup Protoplanetary Disk
• The Photoevaporation of Discs Around Young Stars in Massive Clusters
• Variations in Stellar Clustering with Environment: Dispersed Star Formation and the Origin of Faint Fuzzies
• ALMA Observations of the Orion Proplyds
• UV Radiation Fields Produced by Young Embedded Star Clusters
• The Cloud Factory I: Generating resolved filamentary molecular clouds from galactic-scale forces
• Refining the Census of the Upper Scorpius Association with Gaia
• The time evolution of dusty protoplanetary disc radii: observed and physical radii differ
• Spatial Distributions of Young Stars
• Proplyds and Massive Disks in the Orion Nebula Cluster Imaged with CARMA and SMA
• The evolution of dust in discs influenced by external photoevaporation
• The Ecological Impact of High-performance Computing in Astrophysics
• Observed sizes of planet-forming disks trace viscous evolution
• Protoplanetary disc evolution affected by star-disc interactions in young stellar clusters
• Sizes of protoplanetary discs after star-disc encounters
• Stellar clustering shapes the architectures of planetary systems
• The formation of NGC 3603 young starburst cluster: "prompt" hierarchical assembly or monolithic starburst?
• Proplyds around a B1 star - 42 Orionis in NGC 1977
• Strong effect of the cluster environment on the size of protoplanetary discs?
• Cluster dynamics largely shapes protoplanetary disc sizes
• Corona-Australis DANCe. I. Revisiting the census of stars with Gaia-DR2 data
• Dynamics versus structure: breaking the density degeneracy in star formation
• The first multi-dimensional view of mass loss from externally FUV irradiated protoplanetary discs
• Protoplanetary disk masses in NGC 2024: Evidence for two populations
• Investigating the flyby scenario for the HD 141569 system
• Rapid destruction of protoplanetary discs due to externalphotoevaporation in star-forming regions
• Protoplanetary Disc Response to Distant Tidal Encounters in Stellar Clusters
• Photochemical-dynamical models of externally FUV irradiated protoplanetary discs
• An ALMA survey of $\lambda$ Orionis disks: from supernovae to planet formation
• Effects of stellar density on the photoevaporation of circumstellar discs
• GW Ori: circumtriple rings and planets
• Bridging the Planet Radius Valley: Stellar Clustering as a Key Driver for Turning Sub-Neptunes into Super-Earths
• The secular evolution of the Kuiper belt after a close stellar encounter
• The Impact of Stellar Clustering on the Observed Multiplicity and Orbital Periods of Planetary Systems
• When the Peas Jump around the Pod: How Stellar Clustering Affects the Observed Correlations between Planet Properties in Multi-Planet Systems
• Not the Birth Cluster: the Stellar Clustering that Shapes Planetary Systems is Generated by Galactic-Dynamical Perturbations
• X-Shooter survey of disk accretion in Upper Scorpius I. Very high accretion rates at age>5 Myr

Cited by in corpus (6)

• Survey of Orion Disks with ALMA (SODA) II: UV-driven disk mass loss in L1641 and L1647
• Planet formation via pebble accretion in externally photoevaporating discs
• Radiation shielding of protoplanetary discs in young star-forming regions
• The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): VIII. The impact of external photoevaporation on disk masses and radii in Upper Scorpius
• On encounter rates in star clusters
• Survival of Protoplanetary Disks in Upper Scorpius from Population Synthesis Models with External Photoevaporation