「あかり」による遠赤外線全天サーベイ観測 - CPS Web...

「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