J/A+A/516/L15 S Arae photometry (Chadid+, 2010)
First Antarctica light curve. PAIX monitoring of the blazhko RR Lyrae star:
S Arae.
Chadid M., Vernin J., Mekarnia D., Chapellier E., Trinquet H., Bono G.
<Astron. Astrophys., 516, L15-15 (2010)>
=2010A&A...516L..15C 2010A&A...516L..15C (SIMBAD/NED BibCode)
ADC_Keywords: Stars, variable
Keywords: techniques: spectroscopic - methods: data analysis -
techniques: photometric - shock waves - stars: variables: RR Lyrae -
stars: atmospheres
Abstract:
In the context of long and continuous time-series photometry and after
the MOST, CoRoT, KEPLER space missions and large geographic longitude
ground-based networks, a new method is offered by the polar location
helping to cope with the problem associated with the Earth's day-night
cycle.
We present the first long time-series photometry from Dome Charlie in
the heart of Antarctica and analyze ∼4400 photometric measurements of
RR Lyrae star S Arae obtained in July and August 2007.
Description:
The 40-cm telescope and Photometer AntarctIca eXtinction named PAIX
were used for long photometric measurements with high time resolution
and a duty cycle of 65%. The Fourier technique was used for the
frequency analysis. New high-precision spectroscopic observations of
S Arae were also collected using HARPS over one pulsation cycle of
S Arae.
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Author's address:
Merieme Chadid,
(End) Patricia Vannier [CDS] 04-Nov-2010