Substructure Formation in a Protostellar Disk of L1527 IRS

Abstract

We analyze multi-frequency, high-resolution continuum data obtained by ALMA and JVLA to study detailed structure of the dust distribution in the infant disk of a Class~0/I source, L1527 IRS. We find three clumps aligning in the north-south direction in the $7\mathrm{mm}$ radio continuum image. The three clumps remain even after subtracting free-free contamination, which is estimated from the $1.3\mathrm{cm}$ continuum observations. The northern and southern clumps are located at a distance of $\sim 15\mathrm{au}$ from the central clump and are likely optically thick at $7\mathrm{mm}$ wavelength. The clumps have similar integrated intensities. The symmetric physical properties could be realized when a dust ring or spiral arms around the central protostar is projected to the plane of the sky. We demonstrates for the first time that such substructure may form even in the disk-forming stage, where the surrounding materials actively accrete toward a disk-protostar system.

References in corpus (33)

• The Disk Substructures at High Angular Resolution Project (DSHARP): I. Motivation, Sample, Calibration, and Overview
• On the Submillimeter Opacity of Protoplanetary Disks
• An Accurate Flux Density Scale from 1 to 50 GHz
• Consistent dust and gas models for protoplanetary disks. I. Disk shape, dust settling, opacities, and PAHs
• The Disk Substructures at High Angular Resolution Project (DSHARP): V. Interpreting ALMA maps of protoplanetary disks in terms of a dust model
• The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. A Statistical Characterization of Class 0 and I Protostellar Disks
• On the Role of Disks in the Formation of Stellar Systems: A Numerical Parameter Study of Rapid Accretion
• Sintering-induced Dust Ring Formation in Protoplanetary Disks: Application to the HL Tau Disk
• One Solution to the Mass Budget Problem for Planet Formation: Optically Thick Disks with Dust Scattering
• On the Formation of Planetesimals via Secular Gravitational Instabilities with Turbulent Stirring
• Formation of a Keplerian disk in the infalling envelope around L1527 IRS: transformation from infalling motions to Kepler motions
• Two-Component Secular Gravitational Instability in a Protoplanetary Disk: A Possible Mechanism for Creating Ring-Like Structures
• VLBA determination of the distance to nearby star-forming regions II. Hubble 4 and HDE 283572 in Taurus
• Infalling-Rotating Motion and Associated Chemical Change in the Envelope of IRAS 16293-2422 Source A Studied with ALMA
• Radio Jets from Young Stellar Objects
• The anomalously low (sub)millimeter spectral indices of some protoplanetary disks may be explained by dust self-scattering
• Multiple Gaps in the Disk of the Class I Protostar GY 91
• Submillimeter polarization observation of the protoplanetary disk around HD 142527
• Modeling the Resolved Disk Around the Class 0 Protostar L1527
• Constraining the Envelope Structure of L1527 IRS: Infrared Scattered Light Modeling
• Observations of Infalling and Rotational Motions on a 1,000-AU Scale around 17 Class 0 and 0/I Protostars: Hints of Disk Growth and Magnetic Braking?
• ALMA Observations of the Protostar L1527 IRS: Probing Details of the Disk and the Envelope Structures
• Systematic analysis of spectral energy distributions and the dust opacity indices for Class 0 young stellar objects
• Nonsticky Ice at the Origin of the Uniformly Polarized Submillimeter Emission from the HL Tau Disk
• Vertical Structure of the Transition Zone from Infalling Rotating Envelope to Disk in the Class 0 Protostar, IRAS04368+2557
• The Magnetic Field in the Class 0 Protostellar Disk of L1527
• ALMA Observations of Polarized 872 $\mu$m Dust Emission from the Protostellar Systems VLA 1623 and L1527
• WL 17: A Young Embedded Transition Disk
• On the Effects of Self-Obscuration in the (Sub-)Millimeter Spectral Indices and Appearance of Protostellar Disks
• Geometric and Kinematic Structure of the Outflow/Envelope System of L1527 Revealed by Subarcsecond-resolution Observation of CS
• The Inner Envelope and Disk of L1527 Revealed: Gemini L'-band Scattered Light Imaging
• Microwave Observations of Edge-on Protoplanetary Disks: Program Overview and First Results
• Sub-arcsecond Kinematic Structure of the Outflow in the Vicinity of the Protostar in L483

Cited by in corpus (23)

• Four annular structures in a protostellar disk less than 500,000 years old
• Global Three-Dimensional Simulations of Outer Protoplanetary Disks with Ambipolar Diffusion
• Early Planet Formation in Embedded Disks (eDisk). II. Limited Dust Settling and Prominent Snow Surfaces in the Edge-on Class I Disk IRAS 04302+2247
• The Mass Accretion Rate and Stellar Properties in Class I Protostars
• Early Planet Formation in Embedded Disks (eDisk) III: A first high-resolution view of sub-mm continuum and molecular line emission toward the Class 0 protostar L1527 IRS
• Modest dust settling in the IRAS04302+2247 Class I protoplanetary disk
• Ring formation by coagulation of dust aggregates in early phase of disk evolution around a protostar
• FAUST IX. Multi-band, multi-scale dust study of L1527 IRS. Evidence for dust properties variations within the envelope of a Class 0/I YSO
• Formation of dust clumps with sub-Jupiter mass and cold shadowed region in gravitationally unstable disk around Class 0/I protostar in L1527 IRS
• Different degrees of nitrogen and carbon depletion in the warm molecular layers of protoplanetary disks
• ORion Alma New GEneration Survey (ORANGES) I. Dust continuum and free-free emission of OMC-2/3 filament protostars
• Cloudlet Capture Model for Asymmetric Molecular Emission Lines Observed in TMC-1A with ALMA
• FAUST. XVIII. Evidence for annular substructure in a very young Class 0 disk
• No evidence of the significant grain growth but tentative discovery of disk substructure in a disk around the Class I Protostar L1489 IRS
• Protostellar disks subject to infall: a one-dimensional inviscid model and comparison with ALMA observations
• Mid-infrared evidence for iron-rich dust in the multi-ringed inner disk of HD 144432
• First Detection of A Linear Structure in the Midplane of the Young HH 211 Protostellar Disk: A Spiral Arm?
• Physical conditions for dust grain alignment in Class 0 protostellar cores II. The role of the radiation field in models aligning/disrupting dust grains
• Magnetic Spirals in Accretion Flows Originated from Misaligned Magnetic Field
• FAUST. XXVIII. High-Resolution ALMA Observations of Class 0/I Disks: Structure, Optical Depths, and Temperatures
• JOYS: JWST MIRI/MRS spectra of the inner 500 au region of the L1527 IRS bipolar outflow
• Early Initiation of Inner Solar System Formation at Dead-Zone Inner Edge
• A VLA View of the Flared, Asymmetric Disk Around the Class 0 Protostar L1527 IRS