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| Paper: |
From Mahalo-Subaru to Gracias-ALMA: Resolving Galaxy Formation at Its Peak Epoch |
| Volume: |
476, New Trends in Radio Astronomy in the ALMA Era |
| Page: |
37 |
| Authors: |
Kodama, T.; Tanaka, I.; Hayashi, M.; Koyama, Y.; Tadaki, K.; Shimakawa, R.; Kohno, K.; Tamura, Y. |
| Abstract: |
The redshift interval of 1.5–2.5 is the critical era for galaxy formation and early evolution
when the star forming and AGN activities are both highest.
Also, these activities should be dependent on environment given the clear habitat segregation
of different types of galaxies seen today.
It is essential therefore to systematically search for star forming galaxies over this critical
epoch and across different environments, and investigate their physical properties in detail.
For this purpose, we design a fully coordinated program between Subaru and ALMA. With Subaru,
we have been conducting the Mahalo-Subaru project which maps out star-forming galaxies
(Hɑ and OII emitters) at 1.5 ≤ z ≤ 2.5 across various environments, by employing the
unique set of custom-made narrow-band filters and wide-field cameras. With ALMA, we propose to
conduct the Gracias-ALMA project which aims to observe CO lines and dust continua of star
forming galaxies with great spatial resolution and high sensitivity, based on our Mahalo-Subaru
sample. We will scrutinize the physical states and the mode of star
formation both globally and locally within galaxies, and identify the physical processes that
regulate star-forming activities as a function of time and environment. |
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