High Precision Crowded Field Photometry

The TAOS Project: High-Speed Crowded Field Aperture Photometry

We have devised an aperture photometry pipeline for data reduction of image data from the Taiwanese-American Occultation Survey (TAOS). The photometry pipeline has high computational performance, and is capable of real-time photometric reduction of images containing up to 1000 stars, within the sampling rate of 5 Hz. The pipeline is optimized for both speed and signal-to-noise performance, and ...

Crowded - field photometry from HST - imaging ⋆

We present a thorough investigation of stellar photometry based on HST imaging of crowded fields at 85 and 10 from the centre of the high-surface brightness elliptical galaxy M32. The Principal Investigators of the present archive data have elsewhere presented an impressive colour-magnitude diagram of the field at 85. Based on the same data we enlarge on their photometric analysis and supplemen...

High Precision Photometry of Transiting Exoplanets

Techniques for Automated High-Precision Photometry of Sun-like Stars

Tennessee State University operates several Automatic Photoelectric Telescopes (APTs) located at Fairborn Observatory in the Patagonia Mountains of southern Arizona. The APTs are dedicated to photometric monitoring programs that would be difficult and expensive to accomplish without the advantages provided by automation. I describe the operation of two of the telescopes (0.75 and 0.80 m APTs) a...

High-precision Transit Photometry of OGLE-TR-10

We present B and I photometry of OGLE-TR-10 during transits of its giant planet. From our observations, we estimate the radius of the planet to be 1.16± 0.05 times the radius of Jupiter, assuming a stellar mass of M⋆ = 1.02 M⊙. This is smaller than previous estimates that were based on lower-precision data, and hence the planet is not as anomalous as was once believed. We provide updated determ...