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Obserwacje spektroskopowe
Widma wybranych gwiazd pola Keplera
Joanna Molenda-Żakowicz, Instytut Astronomiczny, Uniwersytet Wrocławski
These are mean spectra of Kepler asteroseismic targets observed
in the 2005 and 2006 seasons. The observations were made
at the
Catania Astrophysical Observatory, Fracastoro Mountain Station,
Serra la Nave, Italy.
The measurements were obtained with the FRESCO fiber-fed spectrograph mounted
at the 91-cm telescope and working with the resolving power R=21 000.
The aim of these observations was the determination of astrophysical parameters
of the Kepler targets, namely, Teff, log g, [Fe/H], Vrotsini and radial velocities.
[pobierz]
Spectroscopic data for stars from the Kepler field of view
Joanna Molenda-Żakowicz, Instytut Astronomiczny, Uniwersytet Wrocławski
These are individual spectroscopic observations of 62 solar-like stars form
the field of view of
the space telescope Kepler.
37 of these stars have been selected for Kepler asteroseismic targets.
The individual spectra are normalized to the continuum and corrected
for the cosmic rays. The correction for the Earth orbital motion has not
been applied.
The observations were made with the aim of characterization the Kepler
asteroseismic targets. This
included determination of the effective temperature, Teff, surface gravity,
log g, metallicity, [Fe/H], projected rotational velocity, vsini, and radial
velocity, vr.
The data was obtained at the Catania Astrophysical Observatory (Italy),
Fracastoro Mountain Station, Serra la Nave, Mt. Etna in three observing
seasons: 2005, 2006 and 2007. For the measurements, the FRESCO fiber-fed
spectrograph mounted at the 91-cm was used. The resolving power if this
instrument is R=21 000. Its linear dispersion varies from 3.5 A/mm at
H-gamma to 6.8 A/mm at H-alpha. The spectral range covered in one exposure
is about 2500 A in 19 orders. For more details please visit
http://www.ct.astro.it/sln/strumenti.html.
Results obtained from the analysis of these observations have been published
in the following papers:
- Molenda-Żakowicz, J., Frasca, A., Latham, D.W, Jerzykiewicz, M., 2007, Acta Astronomica, 57, 301
- Molenda-Żakowicz, J., Frasca, A., Latham, D.W., 2008, Acta Astronomica, 58, 419
- Molenda-Żakowicz, J., Frasca, A., Latham, D.W., Jerzykiewicz, M., 2008 Journal of Physics: Conf. Ser., 118, 02065
[pobierz]
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