The TAOS II Survey: Real-time Detection and Characterization of Occultation Events
- 17 February 2021
- journal article
- research article
- Published by IOP Publishing in Publications of the Astronomical Society of the Pacific
- Vol. 133 (1021), 034503
- https://doi.org/10.1088/1538-3873/abd4bc
Abstract
The Transneptunian Automated Occultation Survey (TAOS II) is a blind occultation survey with the aim of measuring the size distribution of Trans-Neptunian Objects with diameters in the range of 0.3 ≲ D ≲ 30 km. TAOS II will observe as many as 10,000 stars at a cadence of 20 Hz with all three telescopes simultaneously. This will produce up to ∼20 billion photometric measurements per night, and as many as ∼6 trillion measurements per year, corresponding to over 70 million individual light curves. A very fast analysis pipeline for event detection and characterization is needed to handle this massive data set. The pipeline should be capable of real-time detection of events (within 24 hours of observations) for follow-up observations of any occultations by larger TNOs. In addition, the pipeline should be fast and scalable for large simulations where simulated events are added to the observed light curves to measure detection efficiency and biases in event characterization. Finally, the pipeline should provide estimates of the size of and distance to any occulting objects, including those with non-spherical shapes. This paper describes a new data analysis pipeline for the detection and characterization of occultation events.Keywords
This publication has 52 references indexed in Scilit:
- New Constraint on the Atmosphere of (50000) Quaoar from a Stellar OccultationThe Astronomical Journal, 2019
- A kilometre-sized Kuiper belt object discovered by stellar occultation using amateur telescopesNature Astronomy, 2019
- THE TAOS PROJECT: UPPER BOUNDS ON THE POPULATION OF SMALL KUIPER BELT OBJECTS AND TESTS OF MODELS OF FORMATION AND EVOLUTION OF THE OUTER SOLAR SYSTEMThe Astronomical Journal, 2010
- A SEARCH FOR OCCULTATIONS OF BRIGHT STARS BY SMALL KUIPER BELT OBJECTS USING MEGACAM ON THE MMTThe Astronomical Journal, 2009
- KUIPER BELT OBJECT OCCULTATIONS: EXPECTED RATES, FALSE POSITIVES, AND SURVEY DESIGNThe Astronomical Journal, 2009
- Collisional evolution of Trans-Neptunian populations: Effects of fragmentation physics and estimates of the abundances of gravitational aggregatesPlanetary and Space Science, 2009
- A SEARCH FOR SUB-km KUIPER BELT OBJECTS WITH THE METHOD OF SERENDIPITOUS STELLAR OCCULTATIONSThe Astronomical Journal, 2008
- The Size Distribution of Trans-Neptunian BodiesThe Astronomical Journal, 2004
- Catastrophic Disruptions RevisitedIcarus, 1999
- Can ‘invisible’ bodies be observed in the Solar System?Nature, 1976