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7 papers · 1 filter
Stars as galactic neutrino sources
E. Brocato, V. Castellani, S. Degl'Innocenti +2
Theoretical expectations concerning stars as neutrino sources are presented according to detailed evaluations of the stellar evolutionary histories for an extended grid of stellar…
Stellar models for very low mass main sequence stars: the role of model atmospheres
E. Brocato, S. Cassisi, V. Castellani
We present Very Low Mass stellar models as computed including non-grey model atmospheres for selected assumptions about the star metallicities. The role of atmospheres is discussed…
Un updated theoretical scenario for globular cluster stars
S. Cassisi, V. Castellani, S. Degl'Innocenti +1
In the first part of this paper we revisit the history of theoretical predictions for HB luminosities in old Population II stellar clusters, starting from the results of `old' evol…
The "Tip" of the Red Giant Branch as a distance indicator: results from evolutionary models
M. Salaris, S. Cassisi
New theoretical evaluations of the Red Giant Branch Tip (TRGB) luminosity, by adopting the most updated physical inputs in computing canonical stellar models, are presented. Theore…
Metal Rich RR Lyrae Variables: II. The Pulsational Scenario
Giuseppe Bono, Filippina Caputo, Santi Cassisi +2
We present a theoretical investigation on the pulsational behavior of metal-rich RR Lyrae variables over the range of evolutionary parameters suitable for stars with metallicities…
A critical investigation on the discrepancy between the observational and theoretical Red Giant luminosity function "Bump"
S. Cassisi, M. Salaris
New theoretical evaluations of the RGB luminosity function 'bump' and the ZAHB luminosity covering the range of metallicities typical of galactic globular cluster are presented. Th…