Spectroscopy of Molecular Hydrogen Emission from Kh 15d


We report infrared spectroscopy of the unusual eclipsing pre–main-sequence object KH 15D, obtained using NIRSPEC on Keck II. During eclipse, observations using low spectral resolution ( ) reveal the presence l/dl ∼ 1000 of prominent molecular hydrogen emission in five lines near 2 mm. The relative line strengths are consistent with thermal excitation at K… (More)


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