[ITAL]Hubble Space Telescope[/ITAL] Observations of Globular Clusters in M87 and an Estimate of [ITAL]H[/ITAL][TINF]0[/TINF]

1995 ◽  
Vol 454 (2) ◽  
Author(s):  
Bradley C. Whitmore, ◽  
William B. Sparks ◽  
Ray A. Lucas ◽  
F. Duccio Macchetto, ◽  
John A. Biretta
Keyword(s):  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Space Telescope

[ITAL]Hubble Space Telescope[/ITAL] Imaging of the Globular Clusters in the Fornax Cluster: Color and Luminosity Distributions

1999 ◽  
Vol 117 (1) ◽  
pp. 167-180 ◽  
Author(s):  
Carl J. Grillmair ◽  
Duncan A. Forbes ◽  
Jean P. Brodie ◽  
Rebecca A. W. Elson
Keyword(s):  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Space Telescope ◽  
Fornax Cluster

scholarly journals Hubble Space Telescope Studies of the Dense Central Regions of Globular Clusters

1996 ◽  
Vol 174 ◽  
pp. 19-28
Author(s):  
Puragra Guhathakurta ◽  
Brian Yanny ◽  
Donald P. Schneider ◽  
John N. Bahcall
Keyword(s):  
Density Profile ◽  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Stellar Populations ◽  
Core Collapse ◽  
Red Giants ◽  
Space Telescope ◽  
Blue Straggler ◽  
Central Regions ◽  
Stellar Density

We present results from an ongoing program to probe the dense central parts of Galactic globular clusters using multicolor Hubble Space Telescope images (WF/PC-I and WFPC2). Our sample includes the dense clusters M15, 47 Tuc, M30, NGC 6624, M3 and M13. The two main goals of our program are to measure the shape of stellar density profile in clusters (the slope of the density cusp in post core collapse clusters, in particular) and to understand the nature of evolved stellar populations in very dense regions and their variation as a function of radius. The latter includes studies of blue straggler stars and of the central depletion of bright red giants. Our recent WFPC2 study of M15 is described in detail.

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

Hubble Space Telescope discovery of candidate young globular clusters in the merger remnant NGC 7252

1993 ◽  
Vol 106 ◽  
pp. 1354 ◽  
Author(s):  
Bradley C. Whitmore ◽  
Francois Schweizer ◽  
Claus Leitherer ◽  
Kirk Borne ◽  
Carmelle Robert
Keyword(s):  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Space Telescope

[ITAL]HUBBLE SPACE TELESCOPE[/ITAL][ITAL]Hubble Space Telescope[/ITAL]-NICMOS Observations of M31’[CLC]s[/CLC] Metal-Rich Globular Clusters and Their Surrounding Fields. I. Techniques

2001 ◽  
Vol 121 (5) ◽  
pp. 2584-2596 ◽  
Author(s):  
Andrew W. Stephens ◽  
Jay A. Frogel ◽  
Wendy Freedman ◽  
Carme Gallart ◽  
Pascale Jablonka ◽  
...  
Keyword(s):  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Space Telescope

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.

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