71 citations · 118 across the 5 of their papers we have counts for
5 papers
A Spectroscopic Survey of the Youngest Field Stars in the Solar Neighborhood. II. The optically faint sample
A. Frasca, P. Guillout, A. Klutsch +5
Star formation in the solar neighborhood is mainly traced by young stars in open clusters, associations and in the field, which can be identified by their X-ray emission. The deter…
Solar cycles: the past evolution influence
Alexis Klutsch, Rubens Freire Ferrero
The so-called solar cycle is generally characterized by the quasi-periodic oscillatory evolution of the photospheric spots number. This quasi-periodic pattern has always been an in…
A spectroscopic survey of the youngest field stars in the solar neighbourhood. I. The optically bright sample
P. Guillout, A. Klutsch, A. Frasca +8
We present the first results of a ground-based programme conducted on 1-4m class telescopes. Our sample consists of 1097 active and presumably young stars, all of them being optica…
New triple systems in the RasTyc sample of stellar X-ray sources
A. Klutsch, A. Frasca, P. Guillout +4
During the study of a large set of late-type stellar X-ray sources, we discovered a large fraction of multiple systems. In this paper we investigate the orbital elements and kinema…
Newly discovered active binaries in the RasTyc sample of stellar X-ray sources
A. Frasca, P. Guillout, E. Marilli +2
We present preliminary results of follow-up optical observations, both photometric and spectroscopic, of stellar X-ray sources, selected from the cross-correlation of ROSAT All-Sky…