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A method of color excess determination for high amplitude δ Scuti stars

  • Chulhee Kim*
  • , J. H. Choi
  • , B. K. Moon
  • , Soonthornthum Boonrucksar
  • *Corresponding author for this work
  • Jeonbuk National University
  • National Astronomical Research Institute of Thailand

Research output: Contribution to journalJournal articlepeer-review

Abstract

In order to determine color excess in the uvbyβ color system for high amplitude δ Scuti stars, reddening free [m1], [c1], and β indices data were obtained from the existing literature for 21 stars. Then, the three intrinsic relations of (b-y)0-[m1], (b-y)0 -[c1], and (b-y)0-βwere investigated. Among these, it was shown that the (b-y)0 -[c1] relation is the most useful. By establishing intrinsic (b-y)0-[c1] relations for six reddening calibration stars, color excesses of other stars were determined.

Original languageEnglish
Pages (from-to)155-159
Number of pages5
JournalJournal of the Korean Astronomical Society
Volume42
Issue number6
DOIs
StatePublished - 2009.12

Keywords

  • Color excess
  • High amplitude δ Scuti star
  • Uvbyβ system
  • Variable star

Quacquarelli Symonds(QS) Subject Topics

  • Earth & Marine Sciences
  • Geophysics
  • Geology
  • Physics & Astronomy

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