|
|
| Shortcut to the SSP models |
Selected publications and links to the data: | |
Part II (before 2001) | |
| (see Part I for publications from 2001 to date) | |
|
"Observations and atmospheric parameters of SMR candidates", 2000, Publ. Astron. Soc. of Pacific, 112, 1455. |
The spectroscopic properties of a sample of 92 Pop I bright stars with literature values of [Fe/H] > +0.1 are reviewed in order to study the metallicity scale at supersolar regimes. We find that a ``genuine'' SMR stellar component in the Galactic disk exists with more than one-fourth of the stars in our sample exceeding [Fe/H]> +0.2 dex. |
|
"IR colors and sizes of faint galaxies", 1999, Astron. Astrophys., 349, 751. |
Deep J and K galaxy counts from ESO NTT observations are discussed. We show that the blue, small sources dominating the faint IR counts are compatible with an increasing contribution of sub-L(*) galaxies when going to fainter apparent magnitudes. This points to a steep (α <<-1) faint end of the local infrared luminosity function. |
|
"Photometry of seven clusters of galaxies at intermediate redshift (z = 0.15-0.50)", 1996, Astron. Astrophys. Suppl. Series, 119, 391. |
Gunn g, r, i photometry for the 7 clusters MRC0254-274, Cl0317+15, MS0418.3-3844, Cl1141-283, A1689, A3594, S0781B is presented. For each cluster we derived the spatial distribution properties, and discussed the colors of its galaxy population. |
|
"IUE observations of blue horizontal branch stars in the globular cluster M3 and NGC 6752", 1995, Astron. Astrophys., 301, 684. |
IUE observations of 3 blue horizontal branch stars in M 3 plus 9 stars in NGC 6752 are presented. The physical parameters of these stars have been derived from the Kurucz model atmospheres, and compared with the ZAHB evolutionary tracks by Dorman et al. (1993). All the stars, including those that appear to be evolved off the ZAHB, are consistent with the theoretical predictions. |
|
"Evolutionary population synthesis in stellar systems. II. Early-type galaxies", 1995, Astrophys. Journal Suppl. Series, 98, 69. |
Evolutionary population synthesis models of early-type galaxies are presented. Optical and infrared synthetic colors and spectral indices, including the infrared indices of CO and H2O, are analyzed, exploring their selective sensitivity to the distinctive parameters of the stellar populations. Evolutionary (e + k) corrections are given in the Johnson B, V, and K bands, and in the Gunn g, r, and i system for six different cosmological models. |
|
"The very red halo of the cD galaxy in A3284", 1994, Astron. Astrophys., 292, 54. |
We present deep CCD surface photometry in the Gunn g, r, i system and spectroscopy of the cD galaxy at the center of the cluster A 3284 at z = 0.15. The cD halo shows exceedingly red colors, that are consistent with a prevailing contribution of a population of unevolved M-dwarf stars. |
|
"The stellar population of the globular cluster M3. I. Photographic photometry of 10,000 stars", 1994, Astron. Astrophys., 290, 69. |
The photographic colour-magnitude diagram of a complete sample of 10,000 stars in the globular cluster M 3, down to V<21.5, is presented with very high internal accuracy to obtain complete samples over well defined areas. |
|
"Synthetic and observed photometric indices for globular clusters in the Galaxy and M31", 1994, Astron. Astrophys., 289, 775. |
The Buzzoni (1989) grid of synthetic spectral energy distributions, representative of old stellar populations, is used to derive Johnson and Washington integrated colors to compare with the observations of 120 globular clusters in the Galaxy and to 159 objects of the globular cluster system of M 31. |
|
"Multicolor photometry of cluster of galaxies: A3284, A3305 and A1942", 1994, Astron. Astrophys, Suppl. Series, 103, 245. |
We present Gunn multicolor photometry for the three clusters of galaxies A3284, A3305 and A1942 at redshift z~0.2. The c-m diagrams and the g-i colour distribution, as well as the two-colour diagrams are used to single out early-type galaxies and spirals on the basis of their different photometric properties. |
|
"Chemical enrichment in elliptical galaxies through the study of Iron and Hß spectral indices", 1994, Astron. Journal, 107, 513. |
Chemical evolution of elliptical galaxies and globular clusters is addressed through a combined study of the Iron Fe5270 and Fe5335, and Hß line strength. Analytical fitting functions are derived for the three indices and SSP synthesis is performed exploring the integrated spectral indices vs. relevant age, metallicity, and IMF parameters. The problem of non-standard metal partition (with [α/Fe] > 0 metal enhancement) is assessed. |
|
"Galaxy colors in distant clusters as a test for the world model", 1993, Astrophys. Journal, 410, 499. |
|
|
"Statistical properties of stellar populations and surface-brightness fluctuations in galaxies", 1993, Astron. Astrophys., 275, 433. |
The statistical concepts of effective stellar contributors, and effective luminosity of a stellar population are introduced and discussed in the framework of the SSP theory relying on Buzzoni's (1989) models. The results have been applied to the Tonry-Schneider (1988) method on galaxy surface-brightness fluctuations deriving new distances for M32 and galaxies in the Virgo, Leo, Fornax, and Eridanus clusters. |
|
"The Magnesium Mg2 index as an indicator of metallicity in elliptical galaxies", 1992, Astron. Journal, 103, 1814. |
|
|
"IUE observations of UV-bright stars in M3", 1992, Astron. Astrophys., 254, 110. |
|
|
"Photometry of distant clusters of galaxies: evolutionary features in the cluster 2158+0351 (z = 0.45)", 1990, Monthly Notices Roy. Astron. Soc., 246, 576. |
|
|
"Evolutionary population synthesis in stellar systems. I. A global approach", 1989, Astrophys. Journal Suppl. Series, 71, 817. |
|
|
"Helium abundance in globular clusters: the R-method", 1983, Astron. Astrophys., 128, 94. |
![]() |
AB/Sep 2005 |