284 citations · 373 across the 4 of their papers we have counts for
17 papers
Discovery of true, likely and possible symbiotic stars in the dwarf spheroidal NGC 205
Denise R. Gonçalves, Laura Magrini, Ignacio G. de la Rosa +1
In this paper we discuss the photometric and spectroscopic observations of newly discovered (symbiotic) systems in the dwarf spheroidal galaxy NGC 205. The Gemini Multi-Object Spec…
A tale of a rich cluster at z0.8 as seen by the Star Formation Histories of its ETGs
Anna Ferré-Mateu, Patricia Sánchez-Blázquez, Alexandre Vazdekis +1
We present a detailed stellar population analysis for a sample of 24 early-type galaxies belonging to the rich cluster RXJ0152.7-1357 at z=0.83. We have derived the age, metallicit…
SPIDER X - Environmental effects in central and satellite early-type galaxies through the stellar fossil record
F. La Barbera, A. Pasquali, I. Ferreras +3
A detailed analysis of how environment affects the star formation history of early-type galaxies (ETGs) is undertaken via high signal to noise ratio stacked spectra obtained from a…
SPIDER VIII - Constraints on the Stellar Initial Mass Function of Early-type Galaxies from a Variety of Spectral Features
F. La Barbera, I. Ferreras, A. Vazdekis +5
We perform a spectroscopic study to constrain the stellar Initial Mass Function (IMF) by using a large sample of 24,781 early-type galaxies from the SDSS-based SPIDER survey. Clear…
The impact of a non-universal Initial Mass Function on the Star Formation Histories of Early-Type Galaxies
Anna Ferré-Mateu, Alexandre Vazdekis, Ignacio G. de la Rosa
Recent results on the non-universality of the Initial Mass Function (IMF) have shown strong evidence of IMF variations with galaxy velocity dispersion, with a corresponding impact…
Systematic variation of the stellar Initial Mass Function with velocity dispersion in early-type galaxies
I. Ferreras, F. La Barbera, R. R. de Carvalho +4
An essential component of galaxy formation theory is the stellar initial mass function (IMF), that describes the parent distribution of stellar mass in star forming regions. We pre…