Star Formation and AGN activity in Galaxies classified using the 1.6 {\mu}m Bump and PAH features at \(z = 0.4-2\)

We have studied the star-formation and AGN activity of massive galaxies in the redshift range \(z=0.4-2\), which are detected in a deep survey field using the AKARI InfraRed (IR) astronomical satellite and {\em Subaru} telescope toward the North Ecliptic Pole (NEP). The AKARI/IRC Mid-InfraRed (MIR)...

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Published in:arXiv.org 2011-12
Main Authors: Hanami, Hitoshi, Ishigaki, Tsuyoshi, Fujishiro, Naofumi, Nakanishi, Kouichiro, Miyaji, Takamitsu, Krumpe, Mirko, Umetsu, Keiichi, Ohyama, Youichi, Hyun Jin Shim, Im, Myungshin, Hyoung Mok Lee, Lee, Myung Gyoon, Serjeant, Stephen, White, Glenn J, Willmer, Christopher N, Goto, Tomotsugu, Oyabu, Shinki, Takagi, Toshinobu, Wada, Takehiko, Matsuhara, Hideo
Format: Article
Language:English
Subjects:
Active galactic nuclei
Astronomical satellites
Celestial bodies
Galaxies
Infrared astronomy
Infrared photometry
Photometry
Polycyclic aromatic hydrocarbons
Red shift
Star & galaxy formation
Star formation rate
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Summary:We have studied the star-formation and AGN activity of massive galaxies in the redshift range \(z=0.4-2\), which are detected in a deep survey field using the AKARI InfraRed (IR) astronomical satellite and {\em Subaru} telescope toward the North Ecliptic Pole (NEP). The AKARI/IRC Mid-InfraRed (MIR) multiband photometry is used to trace their star-forming activities with the Polycyclic-Aromatic Hydrocarbon (PAH) emissions, which is also used to distinguish star-forming populations from AGN dominated ones and to estimate the Star Formation Rate (SFR) derived from their total emitting IR (TIR) luminosities. In combination with analyses of their stellar components, we have studied the MIR SED features of star-forming and AGN-harboring galaxies.
ISSN:2331-8422
DOI:10.48550/arxiv.1112.6273