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Calibration and Performance of the AKARI Far-Infrared Surveyor (FIS) -- Slow-Scan Observation Mode for Point-Sources
Nakagawa, Takao; Shirahata, Mai; Hasegawa, Sunao +11 more
We present the characterization and calibration of the Slow-Scan observation mode of the Far-Infrared Surveyor (FIS) onboard the AKARI satellite. The FIS, one of the two focal-plane instruments on AKARI, has four photometric bands between 50--180µm with two types of Ge:Ga array detectors. In addition to the All-Sky Survey, FIS has also taken…
North Ecliptic Pole Wide Field Survey of AKARI: Survey Strategy and Data Characteristics
Kim, Seong Jin; Nakagawa, Takao; Oyabu, Shinki +10 more
We present the survey strategy and the data characteristics of the North Ecliptic Pole (NEP) Wide Survey of AKARI. The survey was carried out for about one year starting from 2006 May with 9 passbands from 2.5 to 24µm and the areal coverage of about 5.8degree² centered on NEP. The survey depth reaches to 21.8 AB magnitude near infrared (NIR)…
Deep 15µm AKARI Observations in the CDFS: Estimating Dust Luminosities for a MIR-Selected Sample and for Lyman Break Galaxies and the Evolution of Ldust/LUV with the Redshift
Buat, Véronique; Burgarella, Denis; Pearson, Chris +2 more
Deep observations of the Chandra Deep Field South have been secured at 15µm with AKARI/IRC infrared space telescope. From these observations, we define a sample of mid infrared-selected galaxies at 15µm and we also obtain 15µm flux densities for a sample of Lyman Break Galaxies at z ∼ 1 already observed at 24µm with Spitzer…
AKARI Far-Infrared Spectroscopic Observations of the Galactic Center Region
Takahashi, H.; Nakagawa, T.; Okada, Y. +5 more
We have observed the Quintuplet- and Arches-cluster regions with the Fourier Transform Spectrometer (FTS) of the Far-Infrared Surveyor (FIS) aboard AKARI to investigate the physical conditions of interstellar matter around the clusters. The FIS-FTS mapping data reveal differences in the spatial distribution among the far-infrared [OIII], [NII], an…
Diffuse 18µ Emission around TYC 3159-6-1 Discovered by the AKARI MIR All-Sky Survey
Oyabu, Shinki; Onaka, Takashi; Takita, Satoshi +11 more
We report on observations of the mysterious object TYC 3159-6-1 located toward the Cygnus X region. It shows interesting characteristics in the AKARI mid-infrared All-Sky Survey. The central star is clearly detected as a point source at 9µ, while no point-like source, but a large shell-like structure is seen around the source at 18µ. T…