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Massive stellar systems: observational challenges and perspectives in the E-ELT era

Published online by Cambridge University Press:  31 March 2017

G. Bono ,
V. F. Braga ,
I. Ferraro ,
G. Fiorentino ,
R. Gilmozzi ,
G. Iannicola ,
D. Magurno ,
N. Matsunaga ,
M. Monelli  and
S. Rastello
G. Bono
Affiliation:
Universitá di Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Roma, Italy email: [email protected] INAF-Osservatorio Astronomico di Roma, Via Frascati 33, 00040 Monteporzio Catone, Italy
V. F. Braga
Affiliation:
Universitá di Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Roma, Italy email: [email protected]
I. Ferraro
Affiliation:
INAF-Osservatorio Astronomico di Roma, Via Frascati 33, 00040 Monteporzio Catone, Italy
G. Fiorentino
Affiliation:
INAF-Osservatorio Astronomico di Bologna, via Ranzani 1, 40127, Bologna, Italy
R. Gilmozzi
Affiliation:
European Southern Observatory, K. Schwarzschild-Str. 2, 85748 Garching-Munchen, Germany
G. Iannicola
Affiliation:
INAF-Osservatorio Astronomico di Roma, Via Frascati 33, 00040 Monteporzio Catone, Italy
D. Magurno
Affiliation:
Universitá di Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Roma, Italy email: [email protected]
N. Matsunaga
Affiliation:
Dept. of Astronomy, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
M. Monelli
Affiliation:
Instituto de Astrofísica de Canarias, La Laguna, Tenerife, Spain Departamento de Astrofísica, Universidad de La Laguna, Tenerife, Spain
S. Rastello
Affiliation:
Universitá di Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Roma, Italy email: [email protected]
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Abstract

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We introduce the empirical framework concerning optical and near-infrared (NIR) photometry of crowded stellar fields. In particular, we address the impact that linear detectors and analytical PSF played in improving the accuracy and the precision of multi-band color-magnitude diagrams (CMDs). We focus our attention on recent findings based on deep NIR images collected with Adaptive Optics (AO) systems at the 8-10m class telescopes and discuss pros and cons of the different approaches. We also discuss the estimate of the absolute age of globular clusters using a well defined knee along the lower main sequence. We mention the role which the current AO-assisted instruments will have in addressing longstanding astrophysical problems of the Galactic center. Finally, we outline the role of first generation of E-ELT instruments upon photometry and spectroscopy of crowded stellar fields.

Keywords

Galaxy: nucleusglobular clusters: generaltechniques: photometrictechniques: spectroscopicstars: distancesstars: evolutionstars: oscillations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S316: Formation, evolution, and survival of massive star clusters , August 2015 , pp. 36 - 43
Copyright
Copyright © International Astronomical Union 2017 

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