Preliminary results of V440 Per and α UMi observations with the Poznan Spectroscopic Telescope

Details Preliminary results of V440 Per and α UMi observations with the Poznan Spectroscopic Telescope Preliminary results of V440 Per and α UMi observations with the Poznan Spectroscopic Telescope

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009coast.159...48f&link_type=abstract

"Communications in Asteroseismology, Vol. 159, p. 48-50. Proceedings of "JENAM 2008 Symposium No 4: Asteroseismology and Stellar

Astronomy and Astrophysics

Astronomy

Scientific paper

Presented herein are preliminary radial velocity results for two classical Cepheids: V440 Per and α UMi (Polaris). Both stars have been observed with the Poznan Spectroscopic Telescope (PST), operational since Aug 2007 at the Borowiec Station of Poznań Astronomical Observatory in Poland. Data obtained for V440 Per suggest the presence of a low-amplitude secondary mode of pulsations. Results of α UMi observations confirm further pulsation amplitude growth, as observed during the last decades.

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