期刊
ASTROPHYSICAL JOURNAL LETTERS
卷 677, 期 1, 页码 L51-L54出版社
IOP PUBLISHING LTD
DOI: 10.1086/587873
关键词
planetary systems : protoplanetary disks; radiative transfer; stars : pre-main-sequence; techniques : interferometric
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 sub-milliarcsecond 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.
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