Abstract
We discuss the scientific role of the Atacama Compact Array (ACA), the Japanese contribution to the ALMA project, for low-mass star-formation study. Our recent observations of several low-mass protostellar envelopes in the submillimeter CS (J=7–6) and HCN (J=4–3) lines with the SMA and ASTE have revealed that these submillimeter emissions are more extended than ∼2000 AU and show different velocity structures from those traced by millimeter lines. These results suggest the importance of taking short-spacing informations the ACA can offer. Our comprehensive imaging simulations of these protostellar envelopes, as well as prestellar cores and debris disks, unprecedentedly demonstrate the scientific importance of ACA.
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© 2008 Springer Science+Business Media B.V.
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Takakuwa, S., Iono, D., Vila-Vilaro, B., Sekiguchi, T., Kawabe, R. (2008). Scientific role of ACA for low-mass star-formation study. In: Bachiller, R., Cernicharo, J. (eds) Science with the Atacama Large Millimeter Array. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6935-2_32
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DOI: https://doi.org/10.1007/978-1-4020-6935-2_32
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-6934-5
Online ISBN: 978-1-4020-6935-2
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