Characteristics of mid-infrared PAH emission from star-forming galaxies selected at 250 ��m in the North Ecliptic Pole (NEP) field
| Autor: | Kim, Seong Jin, Jeong, Woong-Seob, Goto, Tomotsugu, Lee, Hyung Mok, Shim, Hyunjin, Pearson, Chris, Im, Myungshin, Matsuhara, Hideo, Seo, Hyunjong, Hashimoto, Tetsuya, Kim, Minjin, Chiang, Chia-Ying, Barrufet, Laia, Varillas, Maria del Carmen Campos |
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| Rok vydání: | 2019 |
| Předmět: | |
| DOI: | 10.48550/arxiv.1902.02883 |
| Popis: | Evolutionary properties of infrared (IR) luminous galaxies are important keys to understand dust-obscured star formation history and galaxy evolution. Based on the near- to mid-IR imaging with 9 continuous filters of AKARI space telescope, we present the characteristics of dusty star-forming (SF) galalxies showing polycyclic aromatic hydrocarbon (PAH) features observed by the North Ecliptic Pole (NEP) wide field survey of AKARI and Herschel. All the sample galaxies from the AKARI/NEP-Wide data are selected based both on the Herschel/SPIRE 250 ��m detection and optical spectroscopic redshift data. The physical modelling of spectral energy distribution (SED) using all available data points from u to sub-mm 500 ��m band, including WISE and PACS data where available, takes unique advantages of the continuous near to mid-IR coverage, reliable constraint on far-IR peak, spectroscopically determined accurate redshifts, as well as energy balance principle by MAGPHYS. This enables us to derive physically meaningful and accurate total infrared luminosity and 8 ��m (or PAH) luminosity consistently. Our sample galaxies are in the redshift range z 8 pages, 7 figures, Accepted to AKARI special issue of the PASJ |
| Databáze: | OpenAIRE |
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