Hunting for binary Cepheids using the "lucky imaging" technique

P. Klagyivik, L. Szabados, A. Szing, Z. Regály

Research output: Contribution to journalArticle

Abstract

Detecting companions to Cepheids is difficult. In most cases the brightness of the pulsator masks the fainter secondary. Since Cepheids play a key role in determining the cosmic distance scale it is crucial to find binaries among the calibrating stars of the period-luminosity relation. Here we present an ongoing observing project of searching for faint and close companions of Galactic Cepheids using the "lucky imaging" technique.

Original languageEnglish
Pages (from-to)988-991
Number of pages4
JournalAstronomische Nachrichten
Volume334
Issue number9
DOIs
Publication statusPublished - Nov 1 2013

Keywords

  • Binaries: visual
  • Cepheids
  • Stars: individual (CE Cas)
  • Techniques: high angular resolution

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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