Other
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.157...40d&link_type=abstract
Communications in Asteroseismology, Vol.157, p. 40
Other
Scientific paper
We present results of radial velocity measurements of classical cepheids, δ Scuti and β Cephei stars. The spectra were obtained with Poznan Spectroscopic Telescope (PST). The telescope has been operating since August 2007. The PST is equipped with two 40cm diameter mirrors of Newtonian focus, connected by an optic fiber with an echelle spectrograph. The PSTs design aimed at the best cooperation with the spectrograph as well as limiting light looses. It allows us to measure radial velocity of stars as faint as 11.5 magnitudes. The peltier-liquid cooled CCD camera covers 64 echelle orders with spectral range from 4480 to 9250˚A. The dispersion of the obtained radial velocity measurements is on the level of 150 m/s. Echelle spectra reduction and RV measu- rements are performed with Image Reduction and Analysis Facility (IRAF). We have achived sufficient phase coverage for 28 And, γ Peg, Polaris and V440 Per. Further data acquirement for other pulsating stars is currently held.
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