Scientific role of ACA for low-mass star-formation study |
| |
| Authors: | Shigehisa Takakuwa Daisuke Iono Baltasar Vila-Vilaro Tomohiko Sekiguchi Ryohei Kawabe |
| |
| Institution: | (1) ALMA Project Office, National Astronomical Observatory of Japan, Osawa 2-21-1, Mitaka, Tokyo 181-8588, Japan;(2) Present address: Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei, 10617, Taiwan, China |
| |
| 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. |
| |
| Keywords: | ACA Imaging simulations Low-mass star formation |
| 本文献已被 SpringerLink 等数据库收录！ |
|
