Spatially resolved mid-infrared observations of the triple system T Tauri

Abstract

To enhance our knowledge of the characteristics and distribution of the circumstellar dust associated with the individual components of the young hierarchical triple system T Tau, observations in the N-band with MIDI at the VLTI were performed. Our study is based on both the interferometric and the spectrophotometric measurements and is supplemented by new visual and infrared photometry. Also, the phases were investigated to determine the dominating mid-infrared source in the close southern binary. The data were fit with the help of a sophisticated physical disc model. This model utilises the radiative transfer code MC3D that is based on the Monte-Carlo method. Extended mid-infrared emission is found around all three components of the system. Simultaneous fits to the photometric and interferometric data confirm the picture of an almost face-on circumstellar disc around T Tau N. Towards this star, the silicate band is seen in emission. This emission feature is used to model the dust content of the circumstellar disc. Clear signs of dust processing are found. Towards T Tau S, the silicate band is seen in absorption. This absorption is strongly pronounced towards the infrared companion T Tau Sa as can be seen from the first individual N-band spectra for the two southern components. Our fits support the previous suggestion that an almost edge-on disc is present around T Tau Sa. This disc is thus misaligned with respect to the circumstellar disc around T Tau N. The interferometric data indicate that the disc around T Tau Sa is oriented in the north-south direction, which favours this source as launching site for the east-western jet. We further determine from the interferometric data the relative positions of the components of the southern binary.

24 pages, 19 figures, accepted for publication in A&A

References in corpus (8)

• The Magnetic Fields of Classical T Tauri Stars
• VLBA determination of the distance to nearby star-forming regions I. The distance to T Tauri with 0.4% accuracy
• High spatial resolution mid-infrared observations of the low-mass young star TW Hya
• The T Tauri star RY Tau as a case study of the inner regions of circumstellar dust disks
• Analysis of the dust evolution in the circumstellar disks of TTauri stars
• Orbits and Masses in the T Tauri System
• Accurate stellar masses in the multiple system T Tau
• Spatially resolved H2 emission from the disk around T Tau N

Cited by in corpus (49)

• The Mass Dependence Between Protoplanetary Disks and their Stellar Hosts
• On the diversity and statistical properties of protostellar discs
• A dual-frequency sub-arcsecond study of proto-planetary disks at mm wavelengths: First evidence for radial variations of the dust properties
• Mapping the Shores of the Brown Dwarf Desert II: Multiple Star Formation in Taurus-Auriga
• Misaligned Protoplanetary Disks in a Young Binary System
• A sensitive survey for 13CO, CN, H2CO and SO in the disks of T Tauri and Herbig Ae stars
• An empirical sequence of disk gap opening revealed by rovibrational CO
• The Banana Project. III. Spin-orbit Alignment in the Long-period Eclipsing Binary NY Cephei
• The SEEDS High Contrast Imaging Survey of Exoplanets around Young Stellar Objects
• Protoplanetary Disk Masses from Radiative Transfer Modeling: A Case Study in Taurus
• Orbital Motion in Pre-Main Sequence Binaries
• Planets in Binaries: Formation and Dynamical Evolution
• Mid-Infrared Spectral Variability Atlas of Young Stellar Objects
• ALMA observations of a misaligned binary protoplanetary disk system in Orion
• VLTI/MIDI atlas of disks around low- and intermediate-mass young stellar objects
• Formation and Early Evolution of Circumstellar Disks in Turbulent Molecular Cloud Cores
• Variable accretion as a mechanism for brightness variations in T Tau S
• Strongly misaligned triple system in SR 24 revealed by ALMA
• Evidence of a discontinuous disk structure around the Herbig Ae star HD 139 614
• An origin of arc structures deeply embedded in dense molecular cloud cores
• Multi-wavelength observations of the young binary system Haro 6-10: The case of misaligned discs
• Orbits in the T Tauri triple system observed with SPHERE
• Dynamics during outburst: VLTI observations of the young eruptive star V1647 Ori during its 2003-2006 outburst
• Detection of a large massive circumstellar disk around a high-mass young stellar object in the Carina Nebula
• ALMA Super-resolution Imaging of T Tau: r = 12 au Gap in the Compact Dust Disk around T Tau N
• First Resolved Scattered-Light Images of Four Debris Disks in Scorpius-Centaurus with the Gemini Planet Imager
• Inclination effects in T Tauri star spectra
• Mid-infrared interferometry of the massive young stellar object NGC 2264 IRS 1
• Multiwavelength interferometric observations and modeling of circumstellar disks
• Interferometric study on the temporal variability of the brightness distributions of protoplanetary disks
• New Circumstellar Structure in the T Tauri System
• Orbital Motion, Variability, and Masses in the T Tauri Triple System
• Is T Tauri North a 'Classical' T Tauri star?
• Multiepoch, multiwavelength study of accretion onto T Tauri: X-ray versus optical and UV accretion tracers
• The geometry of the close environment of SV Psc as probed by VLTI/MIDI
• Dust Grain Evolution in Spatially Resolved T Tauri Binaries
• Confronting Standard Models of Proto--Planetary Disks With New Mid--Infrared Sizes from the Keck Interferometer
• VLTI observations of the dust geometry around R Coronae Borealis stars
• Constraints on observing brightness asymmetries in protoplanetary disks at solar system scale
• DR Tau: Temporal variability of the brightness distribution in the potential planet-forming region
• Probing the gaseous disk of T Tau N with CN 5-4 lines
• High-contrast Polarimetry Observation of T Tau Circumstellar Environment
• On the Nature of the T Tauri Triple System
• Mid-infrared photometry of the T Tauri triple system with kernel phase interferometry
• One of Everything: The Breakthrough Listen Exotica Catalog
• Collisions in young triple systems
• A triple star in disarray -- Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI
• Time-dependent Monte Carlo continuum radiative transfer
• Discs in misaligned binary systems