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Probing Mass Segregation in NGC 6397
E. Martinazzi, A. Pieres, S. O. Kepler +3
In this study, we present a detailed study of mass segregation in the globular clister NGC 6397. First, we carry out a photometric analysis of projected ESO-VLT data (between 1 and…
Constraining the neutrino magnetic dipole moment from white dwarf pulsations
Alejandro H. Córsico, Leandro G. Althaus, Marcelo M. Miller Bertolami +2
Pulsating white dwarf stars can be used as astrophysical laboratories to constrain the properties of weakly interacting particles. Comparing the cooling rates of these stars with t…
Discovery of a new PG1159 (GW Vir) Pulsator
S. O. Kepler, Luciano Fraga, Don Earl Winget +3
We report the discovery of pulsations in the spectroscopic PG 1159 type pre-white dwarf SDSS J075415.12+085232.18. Analysis of the spectrum by Werner, Rauch and Kepler (2014) indic…