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Paper: ALMA Observations of a Young Disc in Corona Australis
Volume: 499, Revolution in Astronomy with ALMA: The Third Year
Page: 217
Authors: Lindberg, J. E.; Jørgensen, J. K.; Brinch, C.; Haugbolle, T.; Bergin, E. A.; Harsono, D.; Persson, M. V.; Visser, R.; Yamamoto, S.
Abstract: We present high-resolution ALMA observations towards the deeply embedded young stellar object IRS7B. This protostar is heavily affected by external irradiation from the nearby Herbig Be star R CrA. We identify a young Keplerian disc around IRS7B, and find that the inner envelope shows only faint CH3OH line emission. This can either be explained by the irradiation history of the source, which may affect the chemistry in the region, or it is a result of the very young protoplanetary disc.
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