Stellar Flyby Analysis for Spiral Arm Hosts with Gaia DR3

Abstract

Scattered light imaging studies have detected nearly two dozen spiral arm systems in circumstellar disks, yet the formation mechanisms for most of them are still under debate. Although existing studies can use motion measurements to distinguish leading mechanisms such as planet-disk interaction and disk self-gravity, close-in stellar flybys can induce short-lived spirals and even excite arm-driving planets into highly eccentric orbits. With unprecedented stellar location and proper motion measurements from Gaia DR3, here we study for known spiral arm systems their flyby history with their stellar neighbours by formulating an analytical on-sky flyby framework. For stellar neighbors currently located within 10 pc from the spiral hosts, we restrict the flyby time to be within the past $10^4$ yr and the flyby distance to be within $10$ times the disk extent in scattered light. Among a total of $12570$ neighbors that are identified in Gaia DR3 for $20$ spiral systems, we do not identify credible flyby candidates for isolated systems. Our analysis suggests that close-in recent flyby is not the dominant formation mechanism for isolated spiral systems in scattered light.

arXiv comment14 pages, 4 figures, 2 tables, ApJS accepted. Data files for Table 2 in the ancillary folder. Code framework available at https://github.com/slinling/afm-spirals

References in corpus (51)

• emcee: The MCMC Hammer
• Gaia Data Release 2. Summary of the contents and survey properties
• BANYAN. XI. The BANYAN $\Sigma$ multivariate Bayesian algorithm to identify members of young associations within 150 pc
• An Optical Spectroscopic Study of T Tauri Stars. I. Photospheric Properties
• Gaia Early Data Release 3 -- Catalogue validation
• The Disk Substructures at High Angular Resolution Project (DSHARP): VII. The Planet-Disk Interactions Interpretation
• Photometric characterization of exoplanets using angular and spectral differential imaging
• BANYAN. II. Very Low Mass and Substellar Candidate Members to Nearby, Young Kinematic Groups With Previously Known Signs of Youth
• Transitional and Pre-Transitional disks: Gap Opening by Multiple Planets?
• Observational Signatures of Planets in Protoplanetary Disks II: Spiral Arms Observed in Scattered Light Imaging Can be Induced by Planets
• Astrophysics of Young Star Binaries
• Disk Evolution in the three Nearby Star-Forming Regions of Taurus, Chamaeleon, and Ophiuchus
• A spectroscopic atlas of post-AGB stars and planetary nebulae selected from the IRAS Point Source Catalogue
• The Disk Substructures at High Angular Resolution Project (DSHARP): IV. Characterizing substructures and interactions in disks around multiple star systems
• Flybys in protoplanetary discs: I. Gas and dust dynamics
• BANYAN. IV. Fundamental parameters of low-mass star candidates in nearby young stellar kinematic groups - Isochronal Age determination using Magnetic evolutionary models
• The polarimetric imaging mode of VLT/SPHERE/IRDIS II: Characterization and correction of instrumental polarization effects
• The polarimetric imaging mode of VLT/SPHERE/IRDIS I: Description, data reduction and observing strategy
• Discovery of a Two-Armed Spiral Structure in the Gapped Disk in HD 100453
• An M Dwarf Companion and Its Induced Spiral Arms in the HD 100453 Protoplanetary Disk
• LACEwING: A New Moving Group Analysis Code
• A tidal encounter caught in the act: modelling a star-disc fly-by in the young RW Aurigae system
• Spiral arms in the proto-planetary disc HD100453 detected with ALMA: evidence for binary-disc interaction and a vertical temperature gradient
• Spiral Arms in Disks: Planets or Gravitational Instability?
• Flybys in protoplanetary discs: II. Observational signatures
• Multiple Stellar Fly-Bys Sculpting the Circumstellar Architecture in RW Aurigae
• Multiple spiral arms in the disk around intermediate-mass binary HD 34700A
• Diverse protoplanetary disk morphology produced by a Jupiter-mass planet
• Cluster dynamics largely shapes protoplanetary disc sizes
• Ongoing flyby in the young multiple system UX Tauri
• Planetary Signatures in the SAO 206462 (HD 135344B) Disk: A Spiral Arm Passing Through Vortex?
• NGC 1980 is not a foreground population of Orion: Spectroscopic survey of young stars with low extinction in Orion A
• A Search for Close Binaries in the Rho Ophiuchus Star-Forming Region
• An Exo-Kuiper Belt and An Extended Halo around HD 191089 in Scattered Light
• ALMA Detection of Dust Trapping around Lagrangian Points in the LkCa 15 Disk
• Spirals inside the millimeter cavity of transition disk SR 21
• Dynamical Evidence of a Spiral Arm--Driving Planet in the MWC 758 Protoplanetary Disk
• Unveiling the star formation history of the Upper Scorpius association through its kinematics
• The Planetary Luminosity Problem: "Missing Planets" and the Observational Consequences of Episodic Accretion
• First detection of orbital motion for HD 106906 b: A wide-separation exoplanet on a Planet Nine-like orbit
• Angular Momentum Transfer in Star-Discs Encounters: The Case of Low-Mass Discs
• A Decade of MWC 758 Disk Images: Where Are the Spiral-Arm-Driving Planets?
• A Near-coplanar Stellar Flyby of the Planet Host Star HD 106906
• A Layered Debris Disk around M Star TWA 7 in Scattered Light
• Reverse Rotation of the Accretion Disk in RW Aur A: Observations and a Physical Model
• Spiral Arm Pattern Motion in the SAO 206462 Protoplanetary Disk
• Investigating point sources in MWC 758 with SPHERE
• Combining angular differential imaging and accurate polarimetry with SPHERE/IRDIS to characterize young giant exoplanets
• Apparent motion of the circumstellar envelope of CQ Tau in scattered light
• Search for Stellar Flybys in the Sco-Cen OB Association with the Gaia DR2
• Early High-contrast Imaging Results with Keck/NIRC2-PWFS: The SR 21 Disk

Cited by in corpus (8)

• Protoplanetary disks in $K_s$-band total intensity and polarized light
• Molecular Mapping of DR Tau's Protoplanetary Disk, Envelope, Outflow, and Large-Scale Spiral Arm
• Exciting spiral arms in protoplanetary discs from flybys
• Running with the Bulls: The frequency of star-disc encounters in the Taurus star forming region
• Dynamical detection of a companion driving a spiral arm in a protoplanetary disk
• Can gap-edge illumination excite spirals in protoplanetary disks? Three-temperature radiation hydrodynamics and NIR image modelling
• An inner warp discovered in the disk around HD 110058 using VLT/SPHERE and HST/STIS
• The Circumbinary Disk of HD 34700A: I. CO gas kinematics indicate spirals, infall, and vortex motions