University of Denver
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences (PAS)
University of Denver
宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)
著者所属（英）
University of Denver
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences (PAS)
University of Denver
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
出版者
宇宙航空研究開発機構(JAXA)
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料
雑誌名(英)
JAXA Special Publication: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life
巻
JAXA-SP-17-009E
ページ
289 - 292
発行年
2018-03-09
会議概要（会議名, 開催地, 会期, 主催者等）
第4回「あかり」国際会議 (2017年10月17-20日. 東京大学), 文京区, 東京
会議概要（会議名, 開催地, 会期, 主催者等）（英）
The 4th AKARI International Conference: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life (October 17-20, 2017. The University of Tokyo), Bunkyo-ku, Tokyo, Japan
抄録（英）
The AKARI Infrared Astronomical Satellite produced the far-IR all-sky survey (AFASS) maps at roughly arc-minute spatial resolution with its Far-IR Surveyor (FIS) instrument. The AFASS maps enable us to probe the whole sky for sources having far-IR surface brightnesses higher than a few to a couple of dozen MJy sr(exp -1). While the AFASS maps are absolutely calibrated against large-scale diffuse background emission, it is uncertain whether or not an additional flux correction is necessary for small-scale compact and point sources. Here, we verify that point-source photometry reproduces fluxes in the AKARI-FIS bright source catalogue (BSC) as long as the aperture correction based on the empirical point-spread-function profiles of the AFASS maps is applied. This means that far-IR photometry of any source can be done from the AFASS maps by summing surface brightness pixel values within an appropriately-defined perimeter of the target source.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
Flux calibration of point and extended sources in the AKARI far-IR all-sky survey maps
AA1730026054.pdf
(940.81KB)
