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Studying stellar halos with future facilities

Published online by Cambridge University Press:  09 May 2016

Laura Greggio ,
Renato Falomo  and
Michela Uslenghi
Laura Greggio
Affiliation:
INAF, Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122 Padova, Italy emai: laura.greggio@oapd.inaf.it, renato.falomo@oapd.inaf.it
Renato Falomo
Affiliation:
INAF, Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122 Padova, Italy emai: laura.greggio@oapd.inaf.it, renato.falomo@oapd.inaf.it
Michela Uslenghi
Affiliation:
INAF, Istituto di Astrofisica Spaziale e Fisica Cosmica, Via Bassini 15, 20133 Milano, Italy
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Abstract

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Stellar halos around galaxies retain fundamental evidence of the processes which lead to their build up. Sophisticated models of galaxy formation in a cosmological context yield quantitative predictions about various observable characteristics, including the amount of substructure, the slope of radial mass profiles and three dimensional shapes, and the properties of the stellar populations in the halos. The comparison of such models with the observations provides constraints on the general picture of galaxy formation in the hierarchical Universe, as well as on the physical processes taking place in the halos formation. With the current observing facilities, stellar halos can be effectively probed only for a limited number of nearby galaxies. In this paper we illustrate the progress that we expect in this field with the future ground based large aperture telescopes (E-ELT) and with space based facilities as JWST.

Keywords

instrumentation: adaptive opticsgalaxies: halosgalaxies: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Issue S317: The General Assembly of Galaxy Halos: Structure, Origin and Evolution , August 2015 , pp. 209 - 214
Copyright
Copyright © International Astronomical Union 2016 

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