Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ap%26ss.313..169t&link_type=abstract
Astrophysics and Space Science, Volume 313, Issue 1-3, pp. 169-173
Astronomy and Astrophysics
Astrophysics
4
Aca, Imaging Simulations, Low-Mass Star Formation
Scientific paper
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.
Iono Daisuke
Kawabe Ryohei
Sekiguchi Tomohiko
Takakuwa Shigehisa
Vila-Vilaro Baltasar
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