The narrow, inner CO ring around the magnetic Herbig Ae star, HD 101412
C. R. Cowley, S. Hubrig, F. Castelli, and B. Wolff
TL;DR
This paper models CO emission lines in the magnetic Herbig Ae star HD 101412, revealing a narrow, inner disk at about 1 AU with high spectral resolution data providing detailed insights into the disk's structure.
Contribution
It provides a detailed model of the CO emission region, demonstrating the emission originates from a very narrow disk around the star, refining previous understanding.
Findings
Emission originates from a thin disk at ~1 AU
Disk width is constrained to 0.32 AU or less
High-resolution spectra reveal sharp emission features
Abstract
We describe and model emission lines in the first overtone band of CO in the magnetic Herbig Ae star HD 101412. High-resolution CRIRES spectra reveal unusually sharp features which suggest the emission is formed in a thin disk centered at 1 AU with a width 0.32 AU or less. A wider disk will not fit the observations. Previous observations have reached similar conclusions, but the crispness of the new material brings the emitting region into sharp focus.
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