Constraints on the (re-)orientation of star-disk systems through infall

Abstract

It has been consensus that star-disk systems accrete most of their mass and angular momentum during the collapse of a prestellar core, such that the rotational direction of a system is equivalent to the net rotation of the core. Recent results, however, indicate that stars experience post-collapse or late infall, during which the star and its disk is refreshed with material from the protostellar environment through accretion streamers. Apart from adding mass to the star-disk system, infall potentially supplies a substantial amount of angular momentum as the infalling material is initially not bound to the collapsing prestellar core. We investigate the orientation of infall on star-disk systems by analyzing the properties of accreting tracer particles in 3D magnetohydrodynamical simulations of a molecular cloud that is (4 pc)${}^3$ in volume. In contrast to the traditional picture, where the rotational axis is inherited from the collapse of a coherent pre-stellar core, the orientation of star-disk systems can change substantially during the accretion process. In agreement with previous results that show larger contributions of late infall for increasing stellar masses, infall is more likely to lead to a prolonged change in orientation for stars of higher final mass. On average, brown dwarfs and very low mass stars are more likely to form and accrete all of their mass as part of a multiple system, while stars with final masses above a few 0.1 M${}_{\odot }$ are more likely to accrete part of their mass as single stars. Finally, we find an overall trend: the post-collapse accretion phase is more anisotropic than the early collapse phase. This result is consistent with a scenario, where mass accretion from infall occurs via infalling streamers along a preferred direction, while the initial collapse is less anisotropic albeit the fact that material is funneled through accretion channels.

arXiv comment15 pages including 5 pages of appendix, submitted to A&A on April 16; the paper is a follow-up on the 2023 publication "Rejuvenating infall: a crucial yet overlooked source of mass and angular momentum" (https://ui.adsabs.harvard.edu/abs/2023EPJP..138..272K/abstract), comments are welcome

References in corpus (76)

• Array Programming with NumPy
• Stellar, brown dwarf and multiple star properties from a radiation hydrodynamical simulation of star cluster formation
• Chaotic star formation and the alignment of stellar rotation with disc and planetary orbital axes
• On the diversity and statistical properties of protostellar discs
• The Formation of Low-Mass Binary Star Systems Via Turbulent Fragmentation
• Shadows cast by a warp in the HD 142527 protoplanetary disk
• Shadows and spirals in the protoplanetary disk HD 100453
• The ALMA Survey of 70 $\mu$m dark High-mass clumps in Early Stages (ASHES). I. Pilot Survey: Clump Fragmentation
• Shadows cast on the transition disk of HD 135344B. Multiwavelength VLT/SPHERE polarimetric differential imaging
• Modeling jet and outflow feedback during star cluster formation
• The Origin of Massive Stars: The Inertial-Inflow Model
• The COMPLETE Survey of Outflows in Perseus
• Following the flow: tracer particles in astrophysical fluid simulations
• A natural formation scenario for misaligned and short-period eccentric extrasolar planets
• The influence of turbulence during magnetized core collapse and its consequences on low-mass star formation
• The first ALMA view of IRAS 16293-2422: Direct detection of infall onto source B and high-resolution kinematics of source A
• Accretion kinematics through the warped transition disk in HD142527 from resolved CO(6-5) observations
• Turbulence-induced disc formation in strongly magnetised cloud cores
• Zoom-Simulations of Protoplanetary Disks starting from GMC scales
• The role of turbulent magnetic reconnection on the formation of rotationally supported protostellar disks
• The Turbulent Origin of Spin-Orbit Misalignment in Planetary Systems
• Misaligned Disks in the Binary Protostar IRS 43
• Disc formation in turbulent massive cores: Circumventing the magnetic braking catastrophe
• Infall-Driven Protostellar Accretion and the Solution to the Luminosity Problem
• Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): Late infall causing disk misalignment and dynamic structures in SU Aur
• The complex morphology of the young disk MWC 758: Spirals and dust clumps around a large cavity
• A triple star system with a misaligned and warped circumstellar disk shaped by disk tearing
• Shadows and asymmetries in the T Tauri disk HD 143006: Evidence for a misaligned inner disk
• Episodic accretion: the interplay of infall and disc instabilities
• PRODIGE -- Envelope to disk with NOEMA I. A 3000 au streamer feeding a Class I protostar
• Exploring dust around HD142527 down to 0.025" / 4au using SPHERE/ZIMPOL
• An inner warp in the DoAr 44 T Tauri transition disk
• Inclined Massive Planets in a Protoplanetary Disc: Gap Opening, Disc Breaking, and Observational Signatures
• Anisotropic Infall and Substructure formation in Embedded Disks
• Cloudlet capture by Transitional Disk and FU Orionis stars
• The stellar IMF from Isothermal MHD Turbulence
• HL Tau disk in HCO+ (3-2) and (1-0) with ALMA: gas density, temperature, gap, and one-arm spiral
• Misaligned disks induced by infall
• Resolving the planet-hosting inner regions of the LkCa 15 disk
• A case of simultaneous star and planet formation
• Formation and Evolution of Disks around Young Stellar Objects
• Variable Outer Disk Shadowing Around the Dipper Star RX J1604.3-2130
• The ALMA Survey of 70 $\mu$m Dark High-mass Clumps in Early Stages (ASHES). IX. Physical Properties and Spatial Distribution of Cores in IRDCs
• Shadowing and multiple rings in the protoplanetary disk of HD 139614
• Gap, shadows, spirals, streamers: SPHERE observations of binary-disk interactions in GG Tau A
• Spiral-driven accretion in protoplanetary discs - I. 2D models
• Warping a protoplanetary disc with a planet on an inclined orbit
• Are protoplanetary disks born with vortices? -- Rossby wave instability driven by protostellar infall
• Orbital and mass constraints of the young binary system IRAS 16293-2422 A
• On the Role of Pseudodisk Warping and Reconnection in Protostellar Disk Formation in Turbulent Magnetized Cores
• Protostellar collapse simulations in spherical geometry with dust coagulation and fragmentation
• From the CMF to the IMF: Beyond the Core-Collapse Model
• Reflections on nebulae around young stars: A systematic search for late-stage infall of material onto Class II disks
• Explaining the luminosity spread in young clusters: proto and pre-main sequence stellar evolution in a molecular cloud environment
• ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT) V: Sample, overview, and demography of disk molecular emission
• A quantification of the non-spherical geometry and accretion of collapsing cores
• The specific angular momentum radial profile in dense cores: improved initial conditions for disk formation
• A Tail Structure Associated with Protoplanetary Disk around SU Aurigae
• Large-scale CO spiral arms and complex kinematics associated with the T Tauri star RU Lup
• An ALMA Survey of Protoplanetary Disks in Lynds 1641
• A kinematically detected planet candidate in a transition disk
• DISPATCH: A Numerical Simulation Framework for the Exa-scale Era. I. Fundamentals
• Star-disk alignment in the protoplanetary disks: SPH simulation of the collapse of turbulent molecular cloud cores
• The contribution of binary star formation via core-fragmentation on protostellar multiplicity
• Flow of gas detected from beyond the filaments to protostellar scales in Barnard 5
• Probing the Physics of Star-Formation (ProPStar): II. The first systematic search for streamers toward protostars
• Old pre-main-sequence Stars: Disc reformation by Bondi-Hoyle accretion
• Molecular Mapping of DR Tau's Protoplanetary Disk, Envelope, Outflow, and Large-Scale Spiral Arm
• Spirals, shadows & precession in HD 100453 -- II. The hidden companion
• Crescent-Shaped Molecular Outflow from the Intermediate-mass Protostar DK Cha Revealed by ALMA
• Near-Infrared Polarimetry of the GG Tauri A Binary System
• A 3D physico-chemical model of a pre-stellar core. I. Environmental and structural impact on the distribution of CH${}_3$OH and $c$-C${}_3$H${}_2$
• Protostar L1455 IRS1: Rotating Disk Connecting to Filamentary Network
• Feasibility of detecting shadows in disks induced by infall
• Imaging the warped dusty disk wind environment of SU Aurigae with MIRC-X
• Protostellar disk accretion in turbulent filaments

Cited by in corpus (10)

• Mapping the merging zone of late infall in the AB Aur planet-forming system
• One-third of Sun-like stars are born with misaligned planet-forming disks
• The Formation of Protoplanetary Disks through Pre-Main Sequence Bondi-Hoyle Accretion
• Origin and Evolution of Angular Momentum of Class II Disks
• Anatomy of the Class I protostar L1489 IRS with NOEMA - II. A disk replenished by a massive streamer
• Planet-forming disks and their environment across regions and time from the full NIR census
• Warps survive beyond fly-by encounters in protoplanetary disks. RW Aur A as a case study
• Upside down: GJ3090 b the first retrograde exoplanet around an M dwarf detected with NIRPS
• A Streamer Driving Misalignment in the Circumtriple Disk of GW Ori
• Preferential accretion of binary stars