[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5303/PKAS.2017.32.1.151

A SYSTEMATIC STUDY OF DUST IN EARLY-TYPE GALAXIES WITH AKARI

Kokusho, Takuma (Graduate School of Science, Nagoya University)
Kaneda, Hidehiro (Graduate School of Science, Nagoya University)
Kondo, Toru (Graduate School of Science, Nagoya University)
Oyabu, Shinki (Graduate School of Science, Nagoya University)
Yamagishi, Mitsuyoshi (Graduate School of Science, Nagoya University)
Murata, Katsuhiro (Graduate School of Science, Nagoya University)

Publication Information

Publications of The Korean Astronomical Society / v.32, no.1, 2017 , pp. 151-153 More about this Journal

Abstract

Early-type galaxies (ETGs) are generally dominated by old low-mass stars, which are not very productive of dust, and hot interstellar plasmas, which are very destructive of dust. Thus ETGs provide harsh environments for survival of dust. It has been found that some ETGs contain a large amount of dust, and yet its supply mechanism is not understood well. We present the result of a systematic study of dust in ETGs with the AKARI mid- and far-infrared all-sky surveys. From the AKARI result and the Ks band data obtained by ground-based telescopes, we find that there is a global correlation between the dust mass and stellar luminosity. We also compare the AKARI all-sky survey result with the CO data to discuss origins of dust in ETGs.

Keywords

galaxies: elliptical and lenticular, cD; galaxies: ISM; infrared: galaxies; ISM: dust, extinction;

Citations & Related Records

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