Bisectors of the HARPS cross-correlation function The dependence on stellar atmospheric parameters

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BAŞTÜRK Ö., Dall T. H., Collet R., Lo Curto G., SELAM S. O.

ASTRONOMY & ASTROPHYSICS, cilt.535, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 535
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1051/0004-6361/201117740
  • Dergi Adı: ASTRONOMY & ASTROPHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: instrumentation: spectrographs, techniques: radial velocities, line: profiles, stars: atmospheres, stars: activity, SPECTRAL-LINE BISECTORS, NEWTON-TELESCOPE LIBRARY, GIANT STARS, SPECTROSCOPIC SURVEY, EXTRASOLAR PLANETS, EMPIRICAL SPECTRA, MODEL ATMOSPHERES, EPSILON-ERIDANI, DATA-BASE, ABUNDANCES
  • Ankara Üniversitesi Adresli: Evet

Özet

Context. Bisectors of the HARPS cross-correlation function (CCF) can discern between planetary radial-velocity (RV) signals and spurious RV signals from stellar magnetic activity variations. However, little is known about the effects of the stellar atmosphere on CCF bisectors or how these effects vary with spectral type and luminosity class.