Rotational evolution of solar-type protostars during the star-disk interaction phase

Abstract

The early pre-main sequence phase during which they are still likely surrounded by an accretion disk represents a puzzling stage of the rotational evolution of solar-mass stars. While they are still accreting and contracting they do not seem to spin-up substantially. It is usually assumed that the magnetospheric star-disk interaction tends to maintain the stellar rotation period constant (disklocking), but this hypothesis has never been thoroughly verified. Our aim is to investigate the impact of the star-disk interaction mechanism on the stellar spin evolution during the accreting pre-main sequence phases. We devise a model for the torques acting onto the stellar envelope based on studies of stellar winds and develop a new prescription for the star-disk coupling grounded on numerical simulations of star-disk interaction and magnetospheric ejections. We then use this torque model to follow the long-term evolution of the stellar rotation. Magnetospheric ejections and accretion powered stellar winds play an important role in the spin evolution of solar-type stars. However, kG dipolar magnetic fields are not uncommon but not ubiquitous. Besides, it is unclear how massive stellar winds can be powered, while numerical models of the propeller regime display a strong variability that has no observational confirmation. Better observational statistics and more realistic models could contribute to soften our calculations' requirements.

12 pages, 6 figures, accepted for publication in A&A, language correction

References in corpus (52)

• The chemical composition of the Sun
• The stellar activity-rotation relationship and the evolution of stellar dynamos
• Large-scale magnetic topologies of late M dwarfs
• Large-scale magnetic topologies of mid-M dwarfs
• The Magnetic Fields of Classical T Tauri Stars
• Improved angular momentum evolution model for solar-like stars
• Accretion-powered Stellar Winds as a Solution to the Stellar Angular Momentum Problem
• Testing a Predictive Theoretical Model for the Mass Loss Rates of Cool Stars
• The Mass-Dependence of Angular Momentum Evolution in Sun-Like Stars
• Pre-main-sequence isochrones -- II. Revising star and planet formation timescales
• Probing T Tauri Accretion and Outflow with 1 Micron Spectroscopy
• Magnetic Braking Formulation for Sun-Like Stars: Dependence on Dipole Field Strength and Rotation Rate
• Launching of Conical Winds and Axial Jets from the Disk-Magnetosphere Boundary: Axisymmetric and 3D Simulations
• MHD simulations of accretion onto a dipolar magnetosphere. II. Magnetospheric ejections and stellar spin-down
• Improved angular momentum evolution model for solar-like stars II. Exploring the mass dependence
• Eclipses by circumstellar material in the T Tauri star AA Tau. II. Evidence for non-stationary magnetospheric accretion
• Can we predict the global magnetic topology of a pre-main sequence star from its position in the Hertzsprung-Russell diagram?
• The evolution of surface magnetic fields in young solar-type stars I: the first 250 Myr
• Accretion-Powered Stellar Winds II: Numerical Solutions for Stellar Wind Torques
• Locking of the Rotation of Disk-Accreting Magnetized Stars
• Accretion funnels onto weakly magnetized young stars
• Magnetic braking of T Tauri stars
• First grids of low-mass stellar models and isochrones with self-consistent treatment of rotation : From 0.2 to 1.5 M_\odot at 7 metallicities from PMS to TAMS
• The evolution of surface magnetic fields in young solar-type stars II: The early main sequence (250-650 Myr)
• Young "Dipper" Stars in Upper Sco and $\rho$ Oph Observed by K2
• The spin of accreting stars: dependence on magnetic coupling to the disc
• Rotating models of young solar-type stars : Exploring braking laws and angular momentum transport processes
• Propeller-driven Outflows and Disk Oscillations
• Non-stationary dynamo & magnetospheric accretion processes of the classical T Tauri star V2129 Oph
• Classical T Tauri stars: magnetic fields, coronae, and star-disc interactions
• Multidimensional models of hydrogen and helium emission line profiles for classical T Tauri Stars: method, tests and examples
• Stellar Winds on the Main-Sequence I: Wind Model
• The Monitor project: Rotation of low-mass stars in NGC 2362 -- testing the disc regulation paradigm at 5 Myr
• A Hot Wind from the Classical T Tauri Stars: TW Hydrae and T Tauri
• Turbulence-driven Polar Winds from T Tauri Stars Energized by Magnetospheric Accretion
• The Effect of Combined Magnetic Geometries on Thermally Driven Winds II: Dipolar, Quadrupolar and Octupolar Topologies
• Spin Evolution of Accreting Young Stars. I. Effect of Magnetic Star-Disk Coupling
• The magnetic fields of intermediate-mass T Tauri stars : I. Magnetic detections and fundamental stellar parameters
• Propeller outflows from an MRI disc
• Time-Series Photometry of Stars in and around the Lagoon Nebula. I. Rotation Periods of 290 Low-Mass Pre-Main-Sequence Stars in NGC 6530
• Properties of Strong and Weak Propellers from MHD Simulations
• POISSON project - II - A multi-wavelength spectroscopic and photometric survey of young protostars in L 1641
• Rotational studies in the Orion Nebula Cluster: from solar mass stars to brown dwarfs
• The rotational evolution of low-mass stars
• Line formation in the inner winds of classical T Tauri stars: testing the conical-shell wind solution
• Rotation of young stars in Cepheus OB3b
• Magnetic braking of Sun-like and low-mass stars: Dependence on coronal temperature
• First Magnetic Field Detection on a Class I Protostar
• The open flux evolution of a solar-mass star on the main sequence
• The Nature of Stellar Winds in the Star-Disk Interaction
• Structure and Dynamics of the Accretion Process and Wind in TW Hya
• Spin-down dynamics of magnetized solar-type stars

Cited by in corpus (21)

• The magnetic field and accretion regime of CI Tau
• Stellar Rotation of T Tauri stars in the Orion Star-Forming Complex
• Lithium depletion and angular momentum transport in solar-type stars
• Magnetic torques on T Tauri stars: accreting vs. non-accreting systems
• Magnetic braking of accreting T Tauri stars: Effects of mass accretion rate, rotation, and dipolar field strength
• Magnetic and tidal migration of close-in planets. Influence of secular evolution on their population
• MESA models with magnetic braking
• The influence of the environment on the spin evolution of low-mass stars. I. External photoevaporation of circumstellar disks
• Magnetic braking with MESA evolutionary models in the single star and LMXB regimes
• Magnetic Braking of Accreting T Tauri Stars II: Torque Formulation Spanning Spin-Up and Spin-Down Regimes
• Measurement of the angular momenta of pre-main-sequence stars: early evolution of slow and fast rotators and empirical constraints on spin-down torque mechanisms
• Time-dependent, long-term hydrodynamic simulations of the inner protoplanetary disk II: The importance of stellar rotation
• The Contribution of Alpha Particles to the Solar Wind Angular Momentum Flux in the Inner Heliosphere
• The influence of metallicity on a combined stellar and disk evolution
• What governs the spin distribution of very young < 1 Myr low mass stars
• Towards a holistic magnetic braking model from the evolution of cataclysmic variables to stellar spin-down -- I: the spin-down of fully convective M-dwarfs
• Time-dependent long-term hydrodynamic simulations of the inner protoplanetary disk III: The influence of photoevaporation
• The post-disk (or primordial) spin distribution of M dwarf stars
• Trends in torques acting on the star during a star-disk magnetospheric interaction
• Do accretion-powered stellar winds help spin down T Tauri stars?
• On the origin of the rotation of massive stars