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Wide-Field Camera for Gravitational Microlensing Survey: MOA-cam2

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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 μm 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.

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Authors and Affiliations

  1. Nagoya University, Japan

    Toshifumi Yanagisawa

  2. Nagoya University, Japan

    Yasushi Muraki, Yutaka Matsubara, Fumio Abe, Kimiaki Masuda, Sachiyo Noda, Takahiro Sumi, Yuji Kato, Mitsuaki Fujimoto & Shuji Sato

  3. University of Auckland, New Zealand

    Ian Bond, Nicholas Rattenbury & Philip Yock

  4. University of Canterbury, New Zealand

    Pam Kilmartin & John Hearnshaw

  5. Victoria University of Wellington, New Zealand

    Micheal Reid & Denis Sullivan

  6. Carter National Observatory, New Zealand

    Brian Carter, Richard Dodd, Garry Nankivell & Noiman Rumsey

  7. University of Tokyo, Japan

    Morihiro Honda & Maki Sekiguchi

  8. National Astronomical Observatory, Japan

    Masanori Yoshizawa

  9. Kyoto University, Japan

    Takashi Nakamura & Humitaka Sato

  10. High Energy Accelerator Research Organization (KEK), Japan

    Seiji Kabe, Makoto Kobayashi & Yoshiyuki Watase

  11. Tokai University, Japan

    Jun Jugaku

  12. Tokyo Metropolitan College of Aeronautics, Japan

    Toshiharu Saito

  13. Australia Telescope National Facility, Australia

    Barbel Koribalsky

Authors
  1. Toshifumi Yanagisawa
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  2. Yasushi Muraki
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  3. Yutaka Matsubara
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  4. Fumio Abe
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  5. Kimiaki Masuda
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  6. Sachiyo Noda
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  7. Takahiro Sumi
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  8. Yuji Kato
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  9. Mitsuaki Fujimoto
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  10. Shuji Sato
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  11. Ian Bond
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  12. Nicholas Rattenbury
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  13. Philip Yock
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  14. Pam Kilmartin
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  15. John Hearnshaw
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  16. Micheal Reid
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  17. Denis Sullivan
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  18. Brian Carter
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  19. Richard Dodd
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  20. Garry Nankivell
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  21. Noiman Rumsey
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  22. Morihiro Honda
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  23. Maki Sekiguchi
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  24. Masanori Yoshizawa
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  25. Takashi Nakamura
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  26. Humitaka Sato
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  27. Seiji Kabe
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  28. Makoto Kobayashi
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  29. Yoshiyuki Watase
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  30. Jun Jugaku
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  31. Toshiharu Saito
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  32. Barbel Koribalsky
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Corresponding author

Correspondence to Toshifumi Yanagisawa.

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Yanagisawa, T., Muraki, Y., Matsubara, Y. et al. Wide-Field Camera for Gravitational Microlensing Survey: MOA-cam2. Experimental Astronomy 10, 519–535 (2000). https://doi.org/10.1023/A:1008178000236

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  • DOI: https://doi.org/10.1023/A:1008178000236

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