@inproceedings{oai:jaxa.repo.nii.ac.jp:00005087, author = {上野, 史郎 and 松岡, 勝 and 川崎, 一義 and 冨田, 洋 and 小浜, 光洋 and 鈴木, 素子 and 石川, 真木 and 足立, 康樹 and 三原, 建弘 and 杉崎, 睦 and 中川, 友進 and 山本, 堂之 and 常深, 博 and 木村, 公 and 河合, 誠之 and 森井, 幹雄 and 杉森, 航介 and 吉田, 篤正 and 山岡, 和貴 and 中平, 聡志 and 根来, 均 and 石渡, 良二 and 三好, 翔 and 中島, 基樹 and 上田, 佳宏 and 磯部, 直樹 and 江口, 智士 and 廣井, 和雄 and 片山, 晴義 and 海老沢, 研 and Ueno, Shiro and Matsuoka, Masaru and Kawasaki, Kazuyoshi and Tomida, Hiroshi and Kohama, Mitsuhiro and Suzuki, Motoko and Ishikawa, Masaki and Adachi, Yasuki and Mihara, Tatehiro and Sugizaki, Mutsumi and Nakagawa, Yujin E. and Yamamoto, Takayuki and Tsunemi, Hiroshi and Kimura, Masashi and Kawai, Nobuyuki and Morii, Mikio and Sugimori, Kousuke and Yoshida, Atsumasa and Yamaoka, Kazutaka and Nakahira, Satoshi and Negoro, Hitoshi and Ishiwata, Ryoji and Miyoshi, Sho and Nakajima, Motoki and Ueda, Yoshihiro and Isobe, Naoki and Eguchi, Satoshi and Hiroi, Kazuo and Katayama, Haruyoshi and Ebisawa, Ken and MAXI team}, book = {宇宙航空研究開発機構特別資料:, JAXA Special Publication: The Energetic Cosmos; from Suzaku to ASTRO-H}, month = {Feb}, note = {The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan, Monitor of All Sky X-ray Image (MAXI) is the first astronomical payload on the International Space Station (ISS). MAXI was activated on 3 August 2009 by receiving electric power, circulated coolant, and data links from Japanese Experiment Module (JEM) "Kibo" Exposed Facility of ISS. All MAXI instruments have successfully passed the post-activation health check. Currently in the commissioning phase from August through November 2009, the 520-kg space station payload is transferring data via data relay satellites to a ground station from two X-ray sensors, GSC (Gas Slit Camera covering 2 - 30 keV with twelve proportional counters) and SSC (Solid State-slit camera covering 0.5 - 12 keV with 32 X-ray CCD chips), and three support sensors, VSC (Visual Star Camera), RLG (Ring Laser Gyro), and GPSR (GPS Receiver). Having accumulated the GSC data for one ISS orbit (92 minutes), we released, on 18 August 2009, the "first light" image in which we can easily recognize about 20 bright Galactic sources. A preliminary analysis suggests that GSC achieved about 20 - 30 mCrab sensitivity in one orbit, mostly consistent with the pre-flight estimation. In December 2009, we will start the automatic Internet transmission of the MAXI source detection alerts (MAXI Nova/Burst Alerts), and the public release of the MAXI light curves, images, and spectra at http://maxi.riken.jp . Both the X-ray cameras, GSC and SSC, have wide fields of view (FOV), and scan all-sky X-ray images, once with horizontal FOV and once with zenithal FOV, during every ISS spin (92 minutes) synchronized with the ISS orbital motion. MAXI is more powerful than any previous X-ray All Sky Monitor (ASM) payloads, being able to monitor a medium-sized sample of Active Galactic Nuclei (AGNs). A realistic simulation under optimal observation conditions (Hiroi et al. in this proceedings) suggests that the 5sigma detection limits of GSC will be 20 - 25 mCrab ( approximately 7 x 10(sup -10) ergs cm(sup -2) sec(sup -1) in the energy band of 2 - 30 keV) for one ISS orbit (92 min), 4 - 5 mCrab for one day, and approximately 2 mCrab for one week, reaching a source confusion limit of approximately 0.2 mCrab in every 1.5 years. We plan to operate MAXI for more than five years. The MAXI objectives are (1) to alert the community to X-ray novae and transient X-ray sources, (2) to monitor long-term variabilities of X-ray sources, (3) to stimulate multi-wavelength observations of variable objects, (4) to create unbiased X-ray source catalogues, and (5) to observe diffuse cosmic X-ray emissions, especially with better energy resolution for soft X-rays down to 0.5 keV., 著者人数: 31人(含チーム1), Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science, Number of authors: 31, 資料番号: AA0064574155, レポート番号: JAXA-SP-09-008E}, pages = {400--403}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {The MAXI Experiment: Monitor of All-sky X-ray Image installed on the International Space Station}, volume = {JAXA-SP-09-008E}, year = {2010} }