• DOI:10.1111/j.1365-2966.2005.09061.x
• Corpus ID: 197527136

The University of New South Wales Extrasolar Planet Search: methods and first results from a field centred on NGC 6633

@article{Hidas2005TheUO,
  title={The University of New South Wales Extrasolar Planet Search: methods and first results from a field centred on NGC 6633},
  author={Marton G. Hidas and Michael C. B. Ashley and John K Webb and Michael J. Irwin and Andre Phillips and Hiroyuki Toyozumi and Al{\'i}z Derekas and Jessie L. Christiansen and Ch. Nutto and Sydney Nsw and Australia. and Ioa and Cambridge and UK. and University of Western Sydney},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2005},
  volume={360},
  pages={703-717}
}

• M. Hidas, M. Ashley, +12 authors U. Sydney
• Published 14 January 2005
• Physics, Geology
• Monthly Notices of the Royal Astronomical Society

We report on the current status of the University of New South Wales Extrasolar Planet Search project, giving details of the methods we use to obtain millimagnitude precision photometry using the 0.5-m Automated Patrol Telescope. We use a novel observing technique to optimally broaden the point spread function and thus largely eliminate photometric noise due to intrapixel sensitivity variations on the CCD. We have observed eight crowded Galactic fields using this technique during 2003 and 2004. Our analysis of the first of these fields (centred on the open cluster NGC 6633) has yielded 49 variable stars and four shallow transit candidates. Follow-up observations of these candidates have identified them as eclipsing binary systems. We use a detailed simulation of our observations to estimate our sensitivity to short-period planets, and to select a new observing strategy to maximize the number of planets detected. Ke yw ords: methods: data analysis ‐ methods: observational ‐ binaries: eclipsing ‐ planetary systems ‐ open clusters and associations: individual: NGC 6633.