First AU-scale observations of V1647 Ori with VLTI/MIDI

Abstract

The young eruptive star V1647 Ori was observed with MIDI, the mid-infrared interferometric instrument at the Very Large Telescope Interferometer (VLTI), on March 2, 2005. We present the first spectrally resolved interferometric visibility points for this object. Our results show that (1) the mid-infrared emitting region is extended, having a size of ~ 7 AU at 10 um; (2) no signatures of a close companion can be seen; (3) the 8-13 um spectrum exhibits no obvious spectral features. Comparison with similar observations of Herbig Ae stars suggests that V1647 Ori probably possesses a disk of moderate flaring. A simple disk model with T ~ r^{-0.53}, Σ~ r^{-1.5}, M_d = 0.05 M_Sun is able to fit both the spectral energy distribution and the observed visibility values simultaneously.

arXiv comment4 pages, 4 figures, accepted for publication in Astronomy and Astrophysics Letters

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Cited by in corpus (14)

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• VLTI/MIDI atlas of disks around low- and intermediate-mass young stellar objects
• V1647 Orionis: Optical Photometric and Spectroscopic Monitoring Through the 2003-2006 Outburst
• Evidence of a discontinuous disk structure around the Herbig Ae star HD 139 614
• Formation and evolution of planetary systems: the impact of high angular resolution optical techniques
• The ALMA Early Science View of FUor/EXor objects. IV. Misaligned Outflows in the Complex Star-forming Environment of V1647 Ori and McNeil's Nebula
• Dynamics during outburst: VLTI observations of the young eruptive star V1647 Ori during its 2003-2006 outburst
• High-resolution polarimetry of Parsamian 21: revealing the structure of an edge-on FU Ori disc
• Re-appearance of McNeil's nebula (V1647 Orionis) and its outburst environment
• The JCMT Transient Survey: Four Year Summary of Monitoring the Submillimeter Variability of Protostars
• Interferometric science results on young stellar objects