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12 Years of Stellar Activity Observations in Argentina
Pablo J. D. Mauas, A. Buccino, R. Diaz +6
We present an observational program we started in 1999, to systematically obtain mid-resolution spectra of late-type stars, to study in particular chromospheric activity. In partic…
Chromospheric changes in K stars with activity
Mariela Vieytes, Pablo Mauas, Rodrigo Diaz
We study the differences in chromospheric structure induced in K stars by stellar activity, to expand our previous work for G stars, including the Sun as a star. We selected six st…
Deep census of variable stars in a VLT/VIMOS field in Carina
P. Pietrukowicz, D. Minniti, J. M. Fernandez +6
We have searched for variable stars in deep V-band images of a field towards the Galactic plane in Carina. The images were taken with VIMOS instrument at ESO VLT during 4 contiguou…