INVESTIGADORES
PIATTI Andres Eduardo
artículos
Título:
Representative galaxy age-metallicity relationships
Autor/es:
A.E. PIATTI, A. APARICIO, S.L. HIDALGO
Revista:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Lugar: Londres; Año: 2017 vol. 469 p. 1175 - 1185
ISSN:
0035-8711
Resumen:
The ongoing surveys of galaxies and those for the next generation of telescopes will demand the execution of high-CPU consuming machine codes for recovering detailedstar formation histories (SFHs) and hence age-metallicity relationships (AMRs). We present here an expeditive method which provides quick-look AMRs on the basis of representative ages andmetallicities obtained from colour-magnitude diagram (CMD) analyses. We have tested its perfomance by generating synthetic CMDs for a wide variety of galaxy SFHs.The representative AMRs turn out to be reliable down to a magnitude limit witha photometric completeness factor higher than $sim$ 85 per cent, and trace thechemical evolution history for any stellar population (represented by a mean ageand an intrinsic age spread) with a total mass within ~ 40 per cent of themore massive stellar population in the galaxy.
