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85 papers · 1 filter
Variable stars as standard candles and stellar tracers
G. Bono, M. Cignoni
We review the current status of classical Cepheid and RR Lyrae distance scales. We discuss the most recent theoretical and empirical findings together with pros and cons of differe…
The B-Band Luminosity Function of Red and Blue Galaxies up to z=3.5
E. Giallongo, S. Salimbeni, N. Menci +5
We have explored the redshift evolution of the luminosity function of red and blue galaxies up to . This was possible joining a deep I band composite galaxy sample, which in…
Classical Cepheid Pulsation Models. X. The Period-Age Relation
G. Bono, M. Marconi, S. Cassisi +3
We present new Period-Age (PA) and Period-Age-Color (PAC) relations for fundamental and first overtone classical Cepheids. Current predictions rely on homogeneous sets of evolution…
The influence of chemical composition on the properties of Cepheid stars I - Period-Luminosity relation vs iron abundance
M. Romaniello, F. Primas, M. Mottini +3
We have assessed the influence of the stellar iron content on the Cepheid Period-Luminosity (PL) relation by relating the V band residuals from the Freedman et al (2001) PL relatio…
26Al and 60Fe from massive stars
Marco Limongi, Alessandro Chieffi
We discuss the production of 26Al and 60Fe in two massive star models, namely a 25 and a 80 Msun, of initial solar metallicity.
The Dwarf LSB Galaxy Population of the Virgo Cluster II. Colours and HI line observations
S. Sabatini, J. Davies, W. van Driel +5
In order to investigate the nature of dwarf Low Surface Brightness (LSB) galaxies we have undertaken a deep B and I band CCD survey of a 14 sq degree strip in the Virgo Cluster and…