The post-disk (or primordial) spin distribution of M dwarf stars

Abstract

We investigate the influence of an accretion disk on the angular momentum (AM) evolution of young M dwarfs, which parameters govern the AM distribution after the disk phase, and whether this leads to a mass-independent distribution of SAM. We find that above an initial rate ${\dot{M}}_{\mathrm{crit}}\sim 10^{-8}{\mathrm{M}}_{\odot }/yr$ accretion "erases" the initial SAM of M dwarfs during the disk lifetime, and stellar rotation converges to values of SAM that are largely independent of initial conditions. For stellar masses $>0.3{\mathrm{M}}_{\odot }$, we find that observed initial accretion rates ${\dot{M}}_{\mathrm{init}}$ are comparable to or exceed ${\dot{M}}_{\mathrm{crit}}$. Furthermore, stellar SAM after the disk phase scales with the stellar magnetic field strength as a power-law with an exponent of $-1.1$. For lower stellar masses, ${\dot{M}}_{\mathrm{init}}$ is predicted to be smaller than ${\dot{M}}_{\mathrm{crit}}$ and the initial conditions are imprinted in the stellar SAM after the disk phase. To explain the observed mass-independent distribution of SAM, the stellar magnetic field strength has to range between 20~G and 500~G (700~G and 1500~G) for a 0.1~${\mathrm{M}}_{\odot }$ (0.6~${\mathrm{M}}_{\odot }$) star. These values match observed large-scale magnetic field measurements of young M~dwarfs and the positive relation between stellar mass and magnetic field strength agrees with a theoretically-motivated scaling relation. The scaling law between stellar SAM, mass, and the magnetic field strength is consistent for young stars, where these parameters are constrained by observations. Due to the very limited number of available data, we advocate for efforts to obtain more such measurements. Our results provide new constraints on the relation between stellar mass and magnetic field strength and can be used as initial conditions for future stellar spin models, starting after the disk phase. (shortened)

arXiv commentaccepted for publication in A&A

References in corpus (101)

• Galactic Stellar and Substellar Initial Mass Function
• Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation
• The K2 Mission: Characterization and Early results
• New evolutionary models for pre-main sequence and main sequence low-mass stars down to the hydrogen-burning limit
• The stellar activity-rotation relationship and the evolution of stellar dynamos
• Ages for illustrative field stars using gyrochronology: viability, limitations and errors
• Wind-driven Accretion in Protoplanetary Disks. I: Suppression of the Magnetorotational Instability and Launching of the Magnetocentrifugal Wind
• Linear and nonlinear evolution of the vertical shear instability in accretion discs
• Estimation of the XUV radiation onto close planets and their evaporation
• The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST)
• Improved angular momentum evolution model for solar-like stars
• Evaporation of the planet HD189733b observed in HI Lyman-alpha
• Which jet launching mechanism(s) in TTauri stars?
• Accretion-powered Stellar Winds as a Solution to the Stellar Angular Momentum Problem
• Episodic accretion in magnetically layered protoplanetary discs
• The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. A Statistical Characterization of Class 0 and I Protostellar Disks
• Magnetic Inhibition of Convection and the Fundamental Properties of Low-Mass Stars. III. A Consistent 10 Myr Age for the Upper Scorpius OB Association
• Three-dimensional Simulations of Disk Accretion to an Inclined Dipole: II. Hot Spots and Variability
• The Mass-Dependence of Angular Momentum Evolution in Sun-Like Stars
• The Taurus Spitzer Survey: New Candidate Taurus Members Selected Using Sensitive Mid-Infrared Photometry
• Ground-based detection of an extended helium atmosphere in the Saturn-mass exoplanet WASP-69b
• The Ultraviolet Radiation Environment Around M dwarf Exoplanet Host Stars
• The Kepler Cluster Study: Stellar Rotation in NGC6811
• Probing T Tauri Accretion and Outflow with 1 Micron Spectroscopy
• Launching of Conical Winds and Axial Jets from the Disk-Magnetosphere Boundary: Axisymmetric and 3D Simulations
• A planet within the debris disk around the pre-main-sequence star AU Microscopii
• MHD Simulations of Disk-Magnetized Star Interactions in Quiescent Regime: Funnel Flows and Angular Momentum Transport
• MHD simulations of accretion onto a dipolar magnetosphere. II. Magnetospheric ejections and stellar spin-down
• Rotation in the Pleiades with K2: I. Data and First Results
• 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
• Accretion funnels onto weakly magnetized young stars
• Magnetism, rotation, and nonthermal emission in cool stars -- Average magnetic field measurements in 292 M dwarfs
• Rotation of Low-Mass Stars in Upper Scorpius and Rho Ophiuchus with K2
• The Hot Inner Disk of FU Ori
• K2 rotation periods for low-mass Hyads and a quantitative comparison of the distribution of slow rotators in the Hyades and Praesepe
• Magnetic braking of T Tauri stars
• Long-term Evolution of Protostellar and Protoplanetary Disks. I. Outbursts
• The spin of accreting stars: dependence on magnetic coupling to the disc
• Magnetically Torqued Thin Accretion Disks
• Magnetic fields of M dwarfs
• Accretion Onto Fast X-Ray Pulsars
• The M dwarf planet search programme at the ESO VLT + UVES. A search for terrestrial planets in the habitable zone of M dwarfs
• Poking the Beehive From Space: K2 Rotation Periods For Praesepe
• Circumstellar Disk Lifetimes In Numerous Galactic Young Stellar Clusters
• A Correlation Between Pre-Main Sequence Stellar Rotation Rates and IRAC Excesses in Orion
• Resolved young binary systems and their disks
• Classical T Tauri stars: magnetic fields, coronae, and star-disc interactions
• HST measures of Mass Accretion Rates in the Orion Nebula Cluster
• 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
• Secular evolution of viscous and self-gravitating circumstellar discs
• CSI 2264: Investigating rotation and its connection with disk accretion in the young open cluster NGC 2264
• Rotation of Late-Type Stars in Praesepe with K2
• Turbulence-driven Polar Winds from T Tauri Stars Energized by Magnetospheric Accretion
• Diffusion and Concentration of Solids in the Dead Zone of a Protoplanetary Disk
• Deep MMT Transit Survey of the Open Cluster M37 III: Stellar Rotation at 550 Myr
• Precision photometric monitoring of very low mass Sigma Orionis cluster members: variability and rotation at a few Myr
• Rotation of Low-Mass Stars in Taurus with K2
• The Effect of Combined Magnetic Geometries on Thermally Driven Winds II: Dipolar, Quadrupolar and Octupolar Topologies
• Accretion-Powered Stellar Winds III: Spin Equilibrium Solutions
• Far-Ultraviolet Activity Levels of F, G, K, and M dwarf Exoplanet Host Stars
• Spin Evolution of Accreting Young Stars. II. Effect of Accretion-Powered Stellar Winds
• The protoplanetary disk population in the rho-Ophiuchi region L1688 and the time evolution of Class II YSOs
• Complex magnetic topology and strong differential rotation on the low-mass T Tauri star V2247 Oph
• Spin Evolution of Accreting Young Stars. I. Effect of Magnetic Star-Disk Coupling
• Rotation in NGC 2264: a study based on CoRoT photometric observations
• Ultraviolet Radiation Constraints around the Circumstellar Habitable Zones
• Magnetic-field measurements of T Tauri stars in the Orion Nebula cluster
• POISSON project - II - A multi-wavelength spectroscopic and photometric survey of young protostars in L 1641
• Modeling protoplanetary disk SEDs with artificial neural networks: Revisiting the viscous disk model and updated disk masses
• KMOS study of the mass accretion rate from Class I to Class II in NGC 1333
• Stellar Rotation of T Tauri stars in the Orion Star-Forming Complex
• Magnetic Field Topology in Low-Mass Stars: Spectropolarimetric Observations of M Dwarfs
• Recovery of TESS Stellar Rotation Periods Using Deep Learning
• Magnetic torques on T Tauri stars: accreting vs. non-accreting systems
• Surprisingly Weak Magnetism on Young Accreting Brown Dwarfs
• Characterising the surface magnetic fields of T Tauri stars with high-resolution near-infrared spectroscopy
• Magnetic Properties of Young Stars in the TW Hydrae Association
• Multi-wavelength study of the low-luminosity outbursting young star HBC 722
• Magnetic braking of accreting T Tauri stars: Effects of mass accretion rate, rotation, and dipolar field strength
• MRI-active inner regions of protoplanetary discs. I. A detailed model of disc structure
• M Dwarf rotation from the $K2$ young clusters to the field. I. A Mass-Rotation Correlation at 10 Myr
• Accretion bursts in magnetized gas-dust protoplanetary disks
• Theoretical limits on magnetic field strengths in low-mass stars
• The effect of accretion on the pre-main-sequence evolution of low-mass stars and brown dwarfs
• ALMA detects a radial disk wind in DG Tau
• Rotational evolution of solar-type protostars during the star-disk interaction phase
• The influence of the environment on the spin evolution of low-mass stars. I. External photoevaporation of circumstellar disks
• Magnetic Field of the Active Planet-hosting M Dwarf AU Mic
• A "Rosetta Stone" for protoplanetary disks: The synergy of multi-wavelength observations
• Magnetic topologies of young suns: The weak-line T Tauri stars TWA 6 and TWA 8A
• The vertical shear instability in poorly ionised, magnetized protoplanetary discs
• Time-dependent, long-term hydrodynamic simulations of the inner protoplanetary disk I: The importance of stellar magnetic torques
• Rotation periods of TESS Objects of Interest from the Magellan-TESS Survey with multiband photometry from Evryscope and TESS
• On dust evolution in planet-forming discs in binary systems. II -- Comparison with Taurus and $\rho$ Ophiuchus (sub-)millimetre observations: discs in binaries have small dust sizes
• The relation between the Mass Accretion Rate and the Disk Mass in Class I Protostars
• The Surface Magnetic Activity of the Weak-Line T Tauri Stars TWA 7 and TWA 25
• 1+1D implicit disk computations
• Investigating the rotational evolution of very low-mass stars and brown dwarfs in young clusters using Monte Carlo simulations
• On the age of the magnetically active WW Psa and TX Psa members of the beta Pictoris association

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