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Real-time difference imaging analysis of MOA Galactic bulge observations during 2000
Open accessAbstract
We describe observations carried out by the MOA group of the Galactic bulge during 2000 that were designed to detect efficiently gravitational microlensing of faint stars in which the magnification is high and/or of short duration. These events are particularly useful for studies of extrasolar planets and faint stars. Approximately 17 deg2 were monitored at a sampling rate of up to six times per night. The images were analysed in real time using a difference imaging technique. 20 microlensing candidates were detected, of which eight were alerted to the microlensing community whilst in progress. Approximately half of the candidates had high magnifications (≳10), at least one had very high magnification (≳50), and one exhibited a clear parallax effect. The details of these events are reported here, together with details of the on-line difference imaging technique. Some nova-like events were also observed and these are described, together with one asteroid.
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Cited by
One or more bound planets per Milky Way star from microlensing observations
Cassan, A., Kubas, D., Beaulieu, J.-P., Dominik, M., Horne, K., Greenhill, J., Wambsganss, J., Menzies, J., Williams, A., Jørgensen, U. G., et al. (2012) · Nature · doi:10.1038/nature10684 · Cited by 584
Self-citationThe AAO/UKST SuperCOSMOS Hα survey
Parker, Q. A., Phillipps, S., Pierce, M. J., Hartley, M., Hambly, N. C., Read, M. A., MacGillivray, H. T., Tritton, S. B., Cass, C. P., Cannon, R. D., et al. (2005) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2005.09350.x · Cited by 351
Near‐Field Microlensing from Wide‐Field Surveys
Han, C. (2008) · The Astrophysical Journal · doi:10.1086/588083 · Cited by 27
Metadata
- Authors
- Bond, I. A., Abe, F., Dodd, R. J., Hearnshaw, J. B., Honda, M., Jugaku, J., Kilmartin, P. M., Marles, A., Masuda, K., Matsubara, Y., Muraki, Y., Nakamura, T., Nankivell, G., Noda, S., Noguchi, C., Ohnishi, K., Rattenbury, N. J., Reid, M., Saito, T., Sato, H., Sekiguchi, M., Skuljan, J., Sullivan, D. J., Sumi, T., Takeuti, M., Watase, Y., Wilkinson, S., Yamada, R., Yanagisawa, T., & Yock, P. C. M.
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 2001-11-01
- Volume
- 327
- Issue
- 3
- Pages
- 868-880
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W2088217941
- Cited by
- 527
- References
- 0
- FWCI
- 9.37
- Type
- journal article
- Language
- en
- Open access
- green
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- Bond, I. A., Abe, F., Dodd, R. J., Hearnshaw, J. B., Honda, M., Jugaku, J., Kilmartin, P. M., Marles, A., Masuda, K., Matsubara, Y., Muraki, Y., Nakamura, T., Nankivell, G., Noda, S., Noguchi, C., Ohnishi, K., Rattenbury, N. J., Reid, M., Saito, T., . . . Yock, P. C. M. (2001). Real-time difference imaging analysis of MOA Galactic bulge observations during 2000. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1046/j.1365-8711.2001.04776.x
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