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Planetary companions around the K giant stars 11 UMi and HD 32518
M. P. Döllinger, A. P. Hatzes, L. Pasquini +2
11 UMi and HD 32518 belong to a sample of 62 K giant stars that has been observed since February 2004 using the 2m Alfred Jensch telescope of the Thüringer Landessternwarte (TLS) t…
Seeking the Progenitors of Type Ia Supernovae
Ferdinando Patat
The nature of the progenitor system[s] of Type Ia Supernovae is still unclear. In this contribution I review the projects that have been undertaken to answer this question and the…
An investigation of chromospheric activity spanning the Vaughan--Preston gap: impact on stellar ages
G. Pace, J. Melendez, L. Pasquini +5
Chromospheric activity is widely used as an age indicator for solar-type stars based on the early evidence that there is a smooth evolution from young and active to old and inactiv…
Solar analogues in open clusters: The case of M67
K. Biazzo, L. Pasquini, P. Bonifacio +2
Solar analogues are fundamental targets for a better understanding of our Sun and our Solar System. Usually, this research is limited to field stars, which offer several advantages…