Kuiper Belt Occultation Predictions

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dc.contributor.author Fraser, Wesley C.
dc.contributor.author Gwyn, Stephen
dc.contributor.author Trujillo, Chad
dc.contributor.author Stephens, Andrew W.
dc.contributor.author Kavelaars, JJ
dc.contributor.author Brown, Michael E.
dc.contributor.author Bianco, Federica B.
dc.contributor.author Boyle, Richard P.
dc.contributor.author Brucker, Melissa J.
dc.contributor.author Hetherington, Nathan
dc.contributor.author Joner, Michael
dc.contributor.author Keel, William C.
dc.contributor.author Langill, Phil P.
dc.contributor.author Lister, Tim
dc.contributor.author McMillan, Russet J.
dc.contributor.author Young, Leslie
dc.date.accessioned 2018-09-26T22:03:28Z
dc.date.available 2018-09-26T22:03:28Z
dc.date.issued 2013-07-23
dc.identifier.citation Fraser, W., et al. (2014): Kuiper Belt Occultation Predictions. Publications of the Astronomical Society of the Pacific 125(930). DOI: 10.1086/672001 en_US
dc.identifier.uri http://ir.ua.edu/handle/123456789/3977
dc.description.abstract Here we present observations of seven large Kuiper Belt objects. From these observations, we extract a point source catalog with ~0.01'' precision, and astrometry of our target Kuiper Belt objects with 0.04–0.08'' precision within that catalog. We have developed a new technique to predict the future occurrence of stellar occultations by Kuiper Belt objects. The technique makes use of a maximum likelihood approach which determines the best-fit adjustment to cataloged orbital elements of an object. Using simulations of a theoretical object, we discuss the merits and weaknesses of this technique compared to the commonly adopted ephemeris offset approach. We demonstrate that both methods suffer from separate weaknesses, and thus together provide a fair assessment of the true uncertainty in a particular prediction. We present occultation predictions made by both methods for the seven tracked objects, with dates as late as 2015. Finally, we discuss observations of three separate close passages of Quaoar to field stars, which reveal the accuracy of the element adjustment approach, and which also demonstrate the necessity of considering the uncertainty in stellar position when assessing potential occultations. en_US
dc.format.mimetype application/pdf en_US
dc.subject Kuiper Belt objects en_US
dc.title Kuiper Belt Occultation Predictions en_US
dc.type text en_US

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