Publications (8)
Pulsational content and abundance analysis of some Delta Scuti stars observed by CoRoT
E. Poretti, L. Mantegazza, E. Niemczura +7
Several Delta Sct stars were photometrically monitored with the satellite CoRoT and observed in high-resolution spectroscopy from ground. We present here the preliminary analysis o…
Preparing the COROT space mission: incidence and characterisation of pulsation in the Lower Instability Strip
E. Poretti, R. Garrido, P. J. Amado +24
By pursuing the goal to find new variables in the COROT field-of-view we characterised a sample of stars located in the lower part of the instability strip. Our sample is composed…
HST/STIS analysis of the first main sequence pulsar CU Vir
J. Krticka, Z. Mikulasek, G. W. Henry +9
CU Vir has been the first main sequence star that showed regular radio pulses that persist for decades, resembling the radio lighthouse of pulsars and interpreted as auroral radio…
Modelling the light variability of the Ap star epsilon Ursae Majoris
D. Shulyak, J. Krticka, Z. Mikulasek +2
We simulate the light variability of the Ap star epsUMa using the observed surface distributions of Fe, Cr, Ca, Mn, Mg, Sr and Ti obtained with the help of Doppler Imaging techniqu…
Modelling of the ultraviolet and visual SED variability in the hot magnetic Ap star CU Vir
J. Krticka, Z. Mikulasek, T. Luftinger +4
The spectral energy distribution (SED) in chemically peculiar stars may be significantly affected by their abundance anomalies. The observed SED variations are usually assumed to b…
Visual and ultraviolet flux variability of the bright CP star Aur
J. Krticka, Z. Mikulasek, T. Luftinger +1
Chemically peculiar stars of the upper part of the main sequence show periodical variability in line intensities and continua, modulated by the stellar rotation, which is attribute…
Pulsation in the atmosphere of the roAp star HD 24712. I. Spectroscopic observations and radial velocity measurements
T. Ryabchikova, M. Sachkov, W. W. Weiss +10
We have investigated the structure of the pulsating atmosphere of one of the best studied rapidly oscillating Ap stars, HD 24712. For this purpose we analyzed spectra collected dur…
GAUDI: a preparatory archive for the COROT mission
E. Solano, C. Catala, R. Garrido +34
The GAUDI database (Ground-based Asteroseismology Uniform Database Interface, http://sdc.laeff.esa.es/gaudi/) is a preparatory archive for the COROT (COnvection, ROtation and plane…