Line list of HD 143418 : J/A+A/506/845


Authors : Zverko J. orcid , Ziznovsky J., Mikulasek Z. (hide) , Ziznovsky J., Mikulasek Z. et..al

Bibcode : 2009A&A...506..845Z (ADS) (Simbad) (Objects) (hide)

CDS Keywords : Atomic physics
UAT : Atomic physics

Observation (OC)

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Inserted into VizieR : 05-Mar-2010
Last modification : 04-Jul-2017

The puzzling binary HD 143418. (2009)

Keywords : binaries spectroscopic - stars: variables: general - stars: chemically peculiar - stars: abundances - stars: evolution - stars: individual HD 143418

Abstract:HD 143418 was discovered recently to be a double-lined spectroscopic binary with a primary designated as a CP star. Its light displays an orbital phase coupled variability with a peak-to-peak amplitude up to 0.04mag. The photometry available and new high dispersion spectra were investigated from a point of view of CP characteristics. A series of high resolution high S/N coude spectra was acquired from which 25 weak to strong unblended lines of Fe I and II, Ti II, Cr II, Zr II, and Ba II were selected to study spectral line variability. Two Zeeman spectra were obtained to search for a possible magnetic field of the ...(more)
Abstract: (hide)
The twenty-nine spectra from the National Astronomical Observatory, Rozhen, Bulgaria (NAO), were recorded using the photometric AT200 CCD camera with a SITe SI003AB 1024x1024 detector placed at the 3rd optical camera of the coude spectrograph of the 2m RCC telescope, with R=22000, between 14/06/2005 and 03/05/2009.


                
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