Occultations by small non-spherical trans-neptunian objects. I. A new event simulator for TAOS II

The TAOS II Collaboration

Research output: Contribution to journalArticle

Abstract

We present a new occultation event simulator for the Trans-Neptunian Automated Occultation Survey (TAOS II). We have developed a method to compute occultation shadows by small objects with non-circular apparent shapes (as may result from an intrinsic morphology or from the projection of a contact binary). The new simulator calculates diffraction features in the occultation shadows, as well as resulting light curves as would be measured by the TAOS?II survey system. We include effects such as the spectral type and finite angular size of the occulted star. We find that occultation events, especially by Trans-Neptunian Objects with diameters ~3 km may be misidentified or mischaracterized when not taking non-spherical shapes into account.

Original languageEnglish (US)
Article number064401
JournalPublications of the Astronomical Society of the Pacific
Volume131
Issue number1000
DOIs
StatePublished - Jun 2019

Keywords

  • Kuiper belt: general
  • Occultations
  • Surveys

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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