Accretion in protoplanetary disks: the imprint of core properties

Abstract

In this Letter we present a theoretical scenario to explain the steep correlation between disk accretion rates and stellar masses observed in pre-main sequence stars. We show that the correlations and spread observed in the two best studied regions, rho-Ophiuchus and Taurus, can be reproduced by a simple model of single star formation from a rotating collapsing core and the viscous evolution of the circumstellar disk. In this model, the rate of rotation of the parent core sets the value of the `centrifugal radius' within which the infalling matter is loaded onto the surface of the disk. As a consequence, the disk accretion rate measured long after the dispersal of the parental core bears the imprint of the initial conditions of star formation. The observed trend results naturally if, at the onset of the collapse, cores of all masses rotate with the same distribution of angular velocities, measured in units of the break-up rotation rate.

Accepted for publication in Astrophysical Journal Letters

References in corpus (3)

• Accretion in the Rho-Oph pre-main sequence stars
• The stellar mass-accretion rate relation in T Tauri stars and brown dwarfs
• Crystalline silicates as a probe of disk formation history

Cited by in corpus (45)

• X-Shooter spectroscopy of young stellar objects in Lupus: Accretion properties of class II and transitional objects
• A Steeper than Linear Disk Mass-Stellar Mass Scaling Relation
• Structure and evolution of pre-main sequence circumstellar disks
• Demographics of Transition Objects
• A decreased probability of habitable planet formation around low-mass stars
• Bifurcation of planetary building blocks during Solar System formation
• The Photoevaporation of Discs Around Young Stars in Massive Clusters
• Mapping accretion and its variability in the young open cluster NGC 2264: a study based on u-band photometry
• Temperaments of young stars: Rapid mass-accretion rate changes in T Tauri and Herbig Ae stars
• Protoplanetary disc `isochrones' and the evolution of discs in the $\dot{M}-M_{\mathrm{d}}$ plane
• ALMA survey of Class II protoplanetary disks in Corona Australis: a young region with low disk masses
• Constraints from Dust Mass and Mass Accretion Rate Measurements on Angular Momentum Transport in Protoplanetary Disks
• Very Low-Mass Objects in the Coronet Cluster: The Realm of the Transition Disks
• Protoplanetary Disks as (Possibly) Viscous Disks
• Cloudlet capture by Transitional Disk and FU Orionis stars
• The protoplanetary disk population in the rho-Ophiuchi region L1688 and the time evolution of Class II YSOs
• Accretion-related properties of Herbig Ae/Be stars. Comparison with T Tauris
• PENELLOPE: the ESO data legacy program to complement the Hubble UV Legacy Library of Young Stars (ULLYSES) I. Survey presentation and accretion properties of Orion OB1 and $\sigma$-Orionis
• The properties of discs around planets and brown dwarfs as evidence for disc fragmentation
• X-Shooter study of accretion in $\rho$-Ophiucus: very low-mass stars and brown dwarfs
• Evidence for Early Circumstellar Disk Evolution in NGC 2068/71
• Mass accretion rates in self-regulated disks of T Tauri stars
• From discs to planetesimals I: evolution of gas and dust discs
• A dusty origin for the correlation between protoplanetary disc accretion rates and dust masses
• Demographics of disks around young very low-mass stars and brown dwarfs in Lupus
• The evolution of photo-evaporating viscous discs in binaries
• Exploring the conditions for forming cold gas giants through planetesimal accretion
• How do T Tauri stars accrete
• Dust clearing by radial drift in evolving protoplanetary discs
• VLT/Flames observations of the star forming region NGC 6530
• Disc evolution and the relationship between $L_{\mathrm{acc}}$ and $L_{\ast }$ in T Tauri stars
• Astro & cosmo-chemical consequences of accretion bursts I: the D/H ratio of water
• A Theoretical Framework for the Mass Distribution of Gas Giant Planets forming through the Core Accretion Paradigm
• On the time evolution of the $M_{\mathrm{d}}-M_{\star }$ and $\dot{M}-M_{\star }$ correlations for protoplanetary discs: the viscous timescale increases with stellar mass
• The applicability of the viscous α-parameterization of gravitational instability in circumstellar disks
• The time evolution of $M_{\mathrm{d}}/\dot{M}$ in protoplanetary discs as a way to disentangle between viscosity and MHD winds
• The relation between the Mass Accretion Rate and the Disk Mass in Class I Protostars
• CAI formation in the early Solar System
• On the accretion properties of young stellar objects in the L1615/L1616 cometary cloud
• Astrophysics in 2006
• The Role of Angular Momentum Transport in Establishing the Accretion Rate--Protostellar Mass Correlation
• The evolution of the $M_{\mathrm{d}}-M_{\star }$ and $\dot{M}-M_{\star }$ correlations traces protoplanetary disc dispersal
• Comparison between accretion-related properties of Herbig Ae/Be and T Tauri stars
• Occurrence rates of accreting companions from a new method for computing emission-line survey sensitivity: application to the H-alpha Giant Accreting Protoplanet Survey
• X-Shooter survey of disk accretion in Upper Scorpius I. Very high accretion rates at age>5 Myr