The effects of atmospheric calibration errors on

Christopher Tycner, D. J. Hutter, R. T. Zavala

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Optical long-baseline interferometric data is commonly calibrated with respect to an external calibrator, which is either an unresolved source or a star with a known angular diameter. A typical observational strategy involves acquiring data in a sequence of calibrator-target pairs, where the observation of each source is obtained separate. Therefore, the atmospheric variations that have time scales shorter than the cadence between the target-calibrator pairs are not always fully removed from the data even after calibration. This results in calibrated observations of a target star tliat contain unknown quantities of residual atmospiieric variations. We describe liow Monte Carlo simulations can be used to assess quantitatively the impact of atmospheric variations on fitted model parameters, such as angular diameters of uniform-disk models representing semi- and fully-resolved single stars.

Original languageEnglish
Title of host publicationOptical and Infrared Interferometry II
DOIs
StatePublished - 2010
EventOptical and Infrared Interferometry II - San Diego, CA, United States
Duration: Jun 27 2010Jul 2 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7734
ISSN (Print)0277-786X

Conference

ConferenceOptical and Infrared Interferometry II
Country/TerritoryUnited States
CitySan Diego, CA
Period06/27/1007/2/10

Keywords

  • Calibration
  • Interferometric data

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