We present the results of an extensive all-sky survey of nearby stars of spectral type F8 or later in a systematic search of young (zero-age main sequence) objects. Our sample has been derived by cross-correlating the ROSAT All-Sky Survey and the TYCHO catalogue, yielding a total of 754 candidates distributed more or less randomly over the sky. Follow-up spectroscopy of these candidate objects has been performed on 748 of them. We have discovered a tight kinematic group of ten stars with extremely high lithium equivalent widths that are presumably younger than the Pleiades, but again distributed rather uniformly over the sky. Furthermore, about 43 per cent of our candidates have detectable levels of lithium, thus indicating...
Optical follow-up observations of unidentified ROSAT All-Sky Survey X-ray sources have shown that se...
Context. Lithium has long been recognized as a powerful tool for investigating the internal mixing o...
Identifying and characterizing young stars in the Solar neighbourhood is essential to find and descr...
International audienceAims: We present the first results of an ambitious ground-based observation pr...
Aims. We present the first results of an ambitious ground-based observation programme conducted on 1...
International audienceContext. Star formation in the solar neighborhood is mainly traced by young st...
Young stars in the solar neighborhood serve as nearby probes of stellar evolution and represent prom...
Young stars in the solar neighborhood serve as nearby probes of stellar evolution and represent prom...
Identifying and characterizing young stars in the Solar neighbourhood is essential to find and descr...
Context. Star formation in the solar neighborhood is mainly traced by young stars in open clusters, ...
Identifying and characterizing young stars in the Solar neighbourhood is essential to find and descr...
Identifying and characterizing young stars in the Solar neighbourhood is essential to find and descr...
Context. Nearby late-type stars are excellent targets for seeking young objects in stellar associat...
We present a kinematically-unbiased search to identify young, nearby low-mass members of kinematic m...
We present results of an investigation of the X-ray properties, age distribution, and kinematical ch...
Optical follow-up observations of unidentified ROSAT All-Sky Survey X-ray sources have shown that se...
Context. Lithium has long been recognized as a powerful tool for investigating the internal mixing o...
Identifying and characterizing young stars in the Solar neighbourhood is essential to find and descr...
International audienceAims: We present the first results of an ambitious ground-based observation pr...
Aims. We present the first results of an ambitious ground-based observation programme conducted on 1...
International audienceContext. Star formation in the solar neighborhood is mainly traced by young st...
Young stars in the solar neighborhood serve as nearby probes of stellar evolution and represent prom...
Young stars in the solar neighborhood serve as nearby probes of stellar evolution and represent prom...
Identifying and characterizing young stars in the Solar neighbourhood is essential to find and descr...
Context. Star formation in the solar neighborhood is mainly traced by young stars in open clusters, ...
Identifying and characterizing young stars in the Solar neighbourhood is essential to find and descr...
Identifying and characterizing young stars in the Solar neighbourhood is essential to find and descr...
Context. Nearby late-type stars are excellent targets for seeking young objects in stellar associat...
We present a kinematically-unbiased search to identify young, nearby low-mass members of kinematic m...
We present results of an investigation of the X-ray properties, age distribution, and kinematical ch...
Optical follow-up observations of unidentified ROSAT All-Sky Survey X-ray sources have shown that se...
Context. Lithium has long been recognized as a powerful tool for investigating the internal mixing o...
Identifying and characterizing young stars in the Solar neighbourhood is essential to find and descr...