scholarly journals The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XXII. Relative ages of multiple populations in five globular clusters

2020 ◽  
Author(s):  
F. Lucertini ◽  
D. Nardiello ◽  
G. Piotto
Keyword(s):  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Multiple Populations ◽  
Space Telescope ◽  
Galactic Globular Clusters

scholarly journals The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters – XVII. Public Catalogue Release

2018 ◽  
Vol 481 (3) ◽  
pp. 3382-3393 ◽  
Author(s):  
D Nardiello ◽  
M Libralato ◽  
G Piotto ◽  
J Anderson ◽  
A Bellini ◽  
...  
Keyword(s):  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Space Telescope ◽  
Galactic Globular Clusters

Internal kinematics of multiple stellar populations in globular clusters

2019 ◽  
Vol 14 (S351) ◽  
pp. 324-328
Author(s):  
Mattia Libralato
Keyword(s):  
High Precision ◽  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Stellar Populations ◽  
Stellar Systems ◽  
Proper Motions ◽  
Space Telescope ◽  
Formation And Evolution ◽  
Galactic Globular Clusters ◽  
Shed Light

AbstractSpectroscopy and photometry have revealed existence, complexity and properties of the multiple stellar populations (mPOPs) hosted in Galactic globular clusters. However, the conundrum of the formation and evolution of mPOPs is far from being completely exploited: the available pieces of information seem not enough to shed light on these topics. Astrometry, and in particular high-precision proper motions, can provide us the sought-after answers about how mPOPs formed and have evolved in these ancient stellar systems. In the following, I present a brief overview of the observational results on the internal kinematics of the mPOPs in some GCs thanks to Hubble Space Telescope high-precision proper motions.

scholarly journals The Hubble Space Telescope UV Legacy Survey of Galactic globular clusters – XIII. ACS/WFC parallel-field catalogues

2018 ◽  
Vol 476 (1) ◽  
pp. 271-299 ◽  
Author(s):  
M Simioni ◽  
L R Bedin ◽  
A Aparicio ◽  
G Piotto ◽  
A P Milone ◽  
...  
Keyword(s):  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Space Telescope ◽  
Parallel Field ◽  
Galactic Globular Clusters

scholarly journals Simulations of HST Observations of Globular Clusters

1988 ◽  
Vol 126 ◽  
pp. 455-464
Author(s):  
John N. Bahcall ◽  
Donald P. Schneider
Keyword(s):  
Globular Clusters ◽  
Angular Resolution ◽  
Hubble Space Telescope ◽  
High Angular Resolution ◽  
Space Telescope ◽  
Science Institute ◽  
Galactic Globular Clusters ◽  
Space Telescope Science Institute

The high angular resolution of the Hubble Space Telescope will provide opportunities for many fundamental observations of globular clusters, most of which have been extensively discussed in the literature. We have therefore chosen to devote our time (and pages) to a presentation of what HST observations may reveal about some aspects of galactic globular clusters. To avoid infringing upon programs that others may propose, we have limited ourselves to simulations of observations that are part of our Guaranteed Time Observations. [The complete catalog of GTO observations has published by the Space Telescope Science Institute and is available upon request.]

scholarly journals Photometric Techniques for Exploring Multiple Populations in Clusters

2012 ◽  
Vol 10 (H16) ◽  
pp. 239-240
Author(s):  
Jay Anderson
Keyword(s):  
High Precision ◽  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Multiple Populations ◽  
Space Telescope ◽  
Very High

AbstractThe advent of the Hubble Space Telescope (HST) and the development of new photometric algorithms that take advantage of its stable observing platform above the atmosphere have allowed us to study the populations in globular clusters with very high precision.

scholarly journals Thirteen facts that you need to know on multiple populations in globular clusters

2019 ◽  
Vol 14 (S351) ◽  
pp. 251-260
Author(s):  
Antonino P. Milone
Keyword(s):  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Multiple Populations ◽  
Space Telescope

AbstractI review the methods, mostly developed in the last decade, that are commonly used to identify and characterize multiple populations (MPs) in Globular Clusters (GCs) based on photometry. I summarize the results from the recent surveys of MPs with the Hubble Space Telescope (HST) and ground-based facilities and provide a list of the main properties of MPs as inferred from these studies.

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