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arXiv · 0803.1484

Strong Near-Infrared Emission Interior to the Dust-Sublimation Radius of Young Stellar Objects MWC275 and AB Aur

A. Tannirkulam·J. D. Monnier·R. Millan-Gabet·T. J. Harries·E. Pedretti·T. A. ten Brummelaar·H. McAlister·N. Turner·J. Sturmann·L. Sturmann
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Abstract

Using the longest optical-interferometeric baselines currently available, we have detected strong near-infrared (NIR) emission from inside the dust-destruction radius of Herbig Ae stars MWC275 and AB Aur. Our sub-milli-arcsecond resolution observations unambiguously place the emission between the dust-destruction radius and the magnetospheric co-rotation radius. We argue that this new component corresponds to hot gas inside the dust-sublimation radius, confirming recent claims based on spectrally-resolved interferometry and dust evaporation front modeling.

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A. Tannirkulam, J. D. Monnier, R. Millan-Gabet, T. J. Harries, E. Pedretti, T. A. ten Brummelaar, H. McAlister, N. Turner, J. Sturmann, L. Sturmann. 2008-03-10. Strong Near-Infrared Emission Interior to the Dust-Sublimation Radius of Young Stellar Objects MWC275 and AB Aur. https://doi.org/10.1086/587873

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