協辦單位
NMNS
協辦單位
ASIAA
贊助單位
MOST
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名稱Title
2019天文年會
國立自然科學博物館
5月17日至19日

論文摘要

Dusty properties of IR galaxies observed by HSC deep optical survey towards the North Ecliptic Pole (NEP) field.

[ Oral ]

Seong Jin KIM, Tomotsugu GOTO, Nagisa OI, Hiroyuki IKEDA, Hideo MATSUHARA, and NEP collaboration.

Evolutionary properties of infrared (IR) galaxies are important to understand dust-obscured star formation history and galaxy evolution. In order to study the dusty properties of IR luminous populations of galaxies, we select the sample from the AKARI survey over the north ecliptic pole (NEP) field simultaneously observed by a deep optical survey using the Hyper Suprime Cam (HSC). This newly available HSC data enabled us to identify more than 20,000 new AKARI sources, which have remained unidentified since the first release of the IR source catalog. Based on this AKARI-HSC sample, we construct multi-wavelength data from the optical u to the Herschel 500 um band, including WISE and PACS data where available. In addition to this, all available spectroscopic data enables us to have more physically motivated modeling and interpretation of the spectral energy distribution (SED), taking unique advantages of deep optical imaging, continuous near- to mid-IR coverage, the reliable constraint on the far-IR peak, and accurate redshifts. We study and discuss the characteristics of the sample in terms of the dust contents, such as dust mass, dust temperature along with the star-formation activity and AGN contribution.