Gas and dust in the inner disk of the Herbig Ae star MWC 758
A. Isella, E. Tatulli, A. Natta, L. Testi

TL;DR
This study uses interferometric observations to analyze the origin of near-infrared emission in the inner disk of the Herbig Ae star MWC 758, revealing a dusty inner rim and hot gaseous accretion disk.
Contribution
It provides the first detailed interferometric analysis distinguishing dust and gas contributions in the inner disk of MWC 758.
Findings
K band emission from dusty inner rim at 0.4 AU
H band emission mainly from within 0.1 AU
Evidence for hot gaseous accretion disk in H band
Abstract
In this Letter we investigate the origin of the near-infrared emission of the Herbig Ae star MWC 758 on sub-astronomical unit (AU) scales using spectrally dispersed low resolution (R=35) AMBER/VLTI interferometric observations both in the H (m) and K (m) bands. We find that the K band visibilities and closure phases are consistent with the presence of a dusty disk inner rim located at the dust evaporation distance (0.4 AU) while the bulk of the H band emission arises within 0.1 AU from the central star. Comparing the observational results with theoretical model predictions, we suggest that the H band emission is dominated by an hot gaseous accretion disk.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
