Bibcode
Ferré-Mateu, A.; Vazdekis, A.; Trujillo, I.; Sánchez-Blázquez, P.; Ricciardelli, E.; de la Rosa, I. G.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society, Volume 423, Issue 1, pp. 632-646.
Fecha de publicación:
6
2012
Número de citas
48
Número de citas referidas
46
Descripción
We characterize the kinematics, morphology, stellar populations and star
formation histories of a sample of massive compact galaxies in the
nearby Universe, which might provide a closer look at the nature of
their high-redshift (z >rsim 1.0) massive counterparts. We find that
nearby compact massive objects show elongated morphologies and are fast
rotators. New high-quality long-slit spectra show that they have young
mean luminosity-weighted ages (?2 Gyr) and metallicities solar or above
([Z/H] >rsim 0.0). No significant stellar population gradients are
found. The analysis of their star formation histories suggests that
these objects have experienced recently enormous bursts which, in some
cases, represent unprecedented large fractions of their total stellar
mass. These galaxies seem to be truly unique, as they do not follow the
characteristic kinematical and stellar population patterns of
present-day massive ellipticals, spirals or even dwarfs.
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