358 citations · 6.9k across the 205 of their papers we have counts for
9 papers · 1 filter
A multi-site campaign to measure solar-like oscillations in Procyon. I. Observations, Data Reduction and Slow Variations
Torben Arentoft, Hans Kjeldsen, Timothy R. Bedding +45
We have carried out a multi-site campaign to measure oscillations in the F5 star Procyon A. We obtained high-precision velocity observations over more than three weeks with eleven…
Oscillations in Procyon A: First results from a multi-site campaign
S. Hekker, T. Arentoft, H. Kjeldsen +45
Procyon A is a bright F5IV star in a binary system. Although the distance, mass and angular diameter of this star are all known with high precision, the exact evolutionary state is…
The SARG Planet Search
S. Desidera, R. Gratton, M. Endl +6
In this chapter of the book "Planets in binaries" we summarize our recent work on the statistical properties of planets in binaries and the differences with respect to planets orbi…
Asteroseismology of Procyon A with SARG at TNG
R. U. Claudi, A. Bonanno, S. Leccia +6
We present high precision radial velocity measurements on the F5 IV star alpha CMi obtained by the SARG spectrograph at TNG (Telescopio Nazionale Galileo) exploiting the iodine cel…
No Planet Around HD 219542 B
S. Desidera, R. G. Gratton, M. Endl +8
The star HD 219542 B has been reported by us (Desidera et al. 2003) to show low-amplitude radial velocity variations that could be due to the presence of a Saturn-mass planetary co…
Abundance differences between components of wide binaries
S. Desidera, R. Gratton, S. Scuderi +9
In this paper we present iron abundance analysis for 23 wide binaries with main sequence components in the temperture range 4900-6300 K, taken from the sample of the pairs currentl…
A search for planets in the metal-enriched binary HD 219542
S. Desidera, R. G. Gratton, M. Endl +6
The components of the wide binary HD 219542 were recently found to differ in metallicity by about 0.1 dex (Gratton et al. A&A 377, 123). In this paper, we present the results of 2…
Discovery of a bipolar and highly variable mass outflow from the symbiotic binary StHa 190
U. Munari, T. Tomov, B. F. Yudin +15
A highly and rapidly variable bipolar mass outflow from StHa 190 has been discovered, the first time in a yellow symbiotic star. Permitted emission lines are flanked by symmetrical…
Metal Abundances of Red Clump Stars in Open Clusters: I. NGC 6819
A. Bragaglia, E. Carretta, R. G. Gratton +10
We present an analysis of high dispersion spectra (R~40000) of three red clump stars in the old open cluster NGC 6819. The spectra were obtained with SARG, the high dispersion spec…