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「あかり」による遠赤外線全天サーベイ観測「あかり」による遠赤外線全天サーベイ観測土井 靖生 土井 靖生 ((東大総文東大総文), Etxaluze Azkonaga, M., White, G. (OpenUniversity), ), Etxaluze Azkonaga, M., White, G. (OpenUniversity), 服部誠 服部誠 ((東北大理東北大理), ), 池田紀夫池田紀夫, , 北村良実北村良実, , 小麥真也小麥真也, , 中川 貴雄中川 貴雄,(ISAS/JAXA), ,(ISAS/JAXA), 松岡良樹松岡良樹, , 金田英金田英宏宏, , 川田光伸 川田光伸 ((名大理名大理), ), 田中昌宏田中昌宏((筑波大筑波大), ), 芝井 広 芝井 広 ((阪大理阪大理), ), 他「あかり」チーム他「あかり」チーム
Infrared all sky survey in 9, Infrared all sky survey in 9, 18, 65, 90, 140, 160 μm18, 65, 90, 140, 160 μm
Survey Coverage
all sky map in ecliptic coordinates
blue: 1black: 0 light blue: 2light blue: 2 green: 3~ red: 10~
サーベイ領域
galactic coordinates
BAND NAME N60 WIDE-S WIDE-L N160Band center [um] 65 90 140 160
32 30 41 380.94 0.21 1.18 2.5
PSF size [arcsec]Detection limit [5σ/scan, Jy]
AKARIAKARI 90um+140um Cygnus
Far-infrared all sky mappingFar-infrared all sky mapping
AKARI 140μm
IRAS 100μm
Betelgeuse WideS vs. IRAS 60μm
Higer spatial resolution than IRAS, comparable to Spitzer
IRAS-HIRES vs. AKARI
Israel et al.(1996) ApJ, 465, 738
N159 in the LMC
http://www.astro.princeton.edu/~schlegel/dust/
``Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds''by D.J. Schlegel, D.P. Finkbeiner, & M. Davis, ApJ, 500, 525 (20 June 1998)
LMC average spectra
Wavelength [μm]
Inte
nsit
y [
MJy/sr]
FIS compared to MIPSFIS compared to MIPS
FIS has continuous band coverageFIS has continuous band coverage
Advantages of AKARI FIR survey
All-Sky Surveyan overwhelming sky coverage
>100μm survey that IRAS doesn't haveContinuous waveband coverage
precise estimation of the total FIR flux
Valuable 90μm wavebandprecise evaluation of dust temperature
High-spatial resolutionbetter than HIRES@60μm
Detailed measurement of SEDwith 4 wavebands
Release of the AKARI-FIS Bright Source Catalogue β-1
Roadmap
2008/10
2009/04
2009/10
2010/04
BSC β-1 release
BSC Ver.1.0 releaseArchive
Link with IRC catalogue?
BSC β-2 release
Feedback from usersPointing reconstruction final data
Full processing
Feedback from users
Full processing
BSC Ver.1.1 release
ImprovingDetection limitFlux uncertaintyPosition uncertainty
We are here !
FIR diffuse map analysis team
Doi, Y. (U. Tokyo)Etxaluze Azkonaga, M.(RAL)
Figueredo, E. (OU)Chinone, Y. (Tohoku U.)Komugi, S. (ISAS/JAXA)Matsuoka, Y. (Nagoya U.)Ikeda, N. (ISAS/JAXA)
Kitamura, Y. (ISAS/JAXA)Tanaka, M. (Tsukuba U.)
Nakagawa, T. (ISAS/JAXA)Hattori, M. (Tohoku U.)
White, G. (OU)Shibai, H. (Osaka U.)
and AKARI data analysis team
Internal data release for calibration(α-version)
↓Internal release of scientific grade data
(β-version)↓
Continuous improvementwith user feedbacks↓
Public release of image data ver.1
Scope for the data release