Strong Near-Infrared Emission Interior to the Dust Sublimation Radius of Young Stellar Objects MWC 275 and AB Aurigae

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 MWC 275 and AB Aur. Our submilliarcsecond resolution observations unambiguously place the emission between the dust destruction radius and the magnetospheric corotation 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.
Original languageEnglish
Pages (from-to)L51-L54
JournalAstrophysical Journal
Volume677
Issue number1
DOIs
Publication statusPublished - Mar 2008

Keywords

  • Stars: Planetary Systems: Protoplanetary Disks, Radiative Transfer, Stars: Pre-Main-Sequence, Techniques: Interferometric

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    Tannirkulam, A., Monnier, J. D., Millan-Gabet, R., Harries, T. J., Pedretti, E., ten Brummelaar, T. A., McAlister, H., Turner, N., Sturmann, J., & Sturmann, L. (2008). Strong Near-Infrared Emission Interior to the Dust Sublimation Radius of Young Stellar Objects MWC 275 and AB Aurigae. Astrophysical Journal, 677(1), L51-L54. https://doi.org/10.1086/587873