|
|||||
|
|
Wide-Field Camera for Gravitational Microlensing Survey: MOA-cam2 |
|
| Authors: | Toshifumi Yanagisawa Yasushi Muraki Yutaka Matsubara Fumio Abe Kimiaki Masuda Sachiyo Noda Takahiro Sumi Yuji Kato Mitsuaki Fujimoto Shuji Sato Ian Bond Nicholas Rattenbury Philip Yock Pam Kilmartin John Hearnshaw Micheal Reid Denis Sullivan Brian Carter Richard Dodd Garry Nankivell Noiman Rumsey Morihiro Honda Maki Sekiguchi Masanori Yoshizawa Takashi Nakamura Humitaka Sato Seiji Kabe Makoto Kobayashi Yoshiyuki Watase Jun Jugaku Toshiharu Saito Barbel Koribalsky |
| Affiliation: | (1) Nagoya University, Japan;(2) Nagoya University, Japan;(3) University of Auckland, New Zealand;(4) University of Canterbury, New Zealand;(5) Victoria University of Wellington, New Zealand;(6) Carter National Observatory, New Zealand;(7) University of Tokyo, Japan;(8) National Astronomical Observatory, Japan;(9) Kyoto University, Japan;(10) High Energy Accelerator Research Organization (KEK), Japan;(11) Tokai University, Japan;(12) Tokyo Metropolitan College of Aeronautics, Japan;(13) Australia Telescope National Facility, Australia |
| Abstract: | We have constructed a large, mosaic CCD camera called MOA-cam2 which has 4096 × 6144-pixelsto search for gravitational microlensing events. MOA-cam2 has three4096 × 2048-pixel SITe CCD chips, which have a very high quantum efficiency (nearly 80% in the wave region 500 to 800 nm),and three buttable sides. We have placed the threechips side by side with 100  m dead space. MOA-cam2 has been installed on the 61 cm Boller and Chivens telescope of the MOA collaboration at the Mt. John University Observatory (MJUO) in NewZealand since July 1998. The field coverage is 0.92° × 1.38° per exposure. The technical details of MOA-cam2 and the first images obtained with the Boller and Chivens telescope are presented. MOA-cam2 introduces a second phase of research on gravitational microlensing by the MOA collaboration. |
| Keywords: | dark matter MACHO wide-field camera |
| 本文献已被 SpringerLink 等数据库收录！ | |
