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Low-Resolution Spectrum of the Extragalactic Background Light with the AKARI InfraRed Camera

Sakon, Itsuki; Matsuura, Shuji; Wada, Takehiko +2 more

The Extragalactic Background Light (EBL) as integrated light from outside of our Galaxy includes information about the early universe and the Dark Ages. We analyzed spectral data of the astrophysical diffuse emission obtained with the low-resolution spectroscopy mode on the AKARI Infra-Red Camera (IRC) in the

A Relation of the PAH 3.3 µm Feature with Star-forming Activity for Galaxies with a Wide Range of Infrared Luminosity

Oyabu, Shinki; Yamagishi, Mitsuyoshi; Im, Myungshin +4 more

For star-forming galaxies, we investigated a global relation between the polycyclic aromatic hydrocarbon (PAH) emission luminosity at 3.3 µm, L_PAH3.3, and the infrared (8-1000 µm) luminosity, L_IR, to understand how the PAH 3.3 µm feature relates to star-formation activity. With AKARI, we performed near-infra…

Low-Resolution Spectrum of the Diffuse Galactic Light and 3.3µm PAH Emission with the AKARI InfraRed Camera

Sakon, Itsuki; Matsuura, Shuji; Wada, Takehiko +3 more

We first obtained the spectrum of the diffuse Galactic light (DGL) at general interstellar space in the $1.8-5.3 \mu \textrm m $ wavelength region with the low-resolution prism spectroscopy mode of the AKARI Infra-Red Camera (IRC) NIR channel. The

The 9 and 18 Micrometer Luminosity Functions of Various Types of Galaxies with AKARI: Implication for the Dust Torus Structure of AGN

Oyabu, Shinki; Ohyama, Youichi; Takita, Satoshi +6 more

We present the 9 and 18 µm luminosity functions (LFs) of galaxies at 0.006 ≤ z ≤ 0.8 (with an average redshift of ∼ 0.04) using the AKARI mid-infrared all-sky survey catalog. We selected 243 galaxies at 9 µm and 255 galaxies at 18 µm from the Sloan Digital Sky Survey (SDSS) spectroscopy region. These galaxies were then classified…

The Asteroid Catalog Using AKARI IRC Slow-Scan Observations

Hasegawa, Sunao; Takita, Satoshi; Usui, Fumihiko +2 more

We present an asteroidal catalog from the mid-infrared wavelength region using the slow-scan observation mode obtained by the Infrared Camera (IRC) on-board the Japanese infrared satellite AKARI. An archive of IRC slow-scan observations comprising about 1000 images was used to search for serendipitous encounters of known asteroids. We have determi…

Low-Resolution Spectrum of the Zodiacal Light with the AKARI InfraRed Camera

Sakon, Itsuki; Matsuura, Shuji; Wada, Takehiko +3 more

We present near- and mid-infrared zodiacal light spectra obtained with the AKARI Infra-Red Camera (IRC). A catalog of 278 spectra of the diffuse sky covering a wide range of Galactic and ecliptic latitudes was constructed. The wavelength range of this catalog is $1.8-5.3 \mu \textrm m $