The Formation and Evolution of Blue Straggler Stars in Globular Cluster

2017 ◽  
pp. 55-63
Author(s):  
Chengyuan Li
Keyword(s):  
Globular Cluster ◽  
Blue Straggler ◽  
Formation And Evolution

scholarly journals The Blue Straggler Population of the Globular Cluster M5: Comparison with M3

2006 ◽  
Vol 648 (2) ◽  
pp. 1026-1036 ◽  
Author(s):  
Steven R. Warren ◽  
Eric L. Sandquist ◽  
Michael Bolte
Keyword(s):  
Globular Cluster ◽  
Blue Straggler

scholarly journals Observational Constraints on the Formation and Evolution of Globular Cluster Systems

2007 ◽  
Vol 3 (S246) ◽  
pp. 394-402
Author(s):  
Stephen E. Zepf
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
Dynamical Evolution ◽  
Mass Function ◽  
Cluster System ◽  
Host Galaxy ◽  
Cluster Systems ◽  
Cluster Mass ◽  
Formation And Evolution ◽  
Globular Cluster System

AbstractThis paper reviews some of the observational properties of globular cluster systems, with a particular focus on those that constrain and inform models of the formation and dynamical evolution of globular cluster systems. I first discuss the observational determination of the globular cluster luminosity and mass function. I show results from new very deep HST data on the M87 globular cluster system, and discuss how these constrain models of evaporation and the dynamical evolution of globular clusters. The second subject of this review is the question of how to account for the observed constancy of the globular cluster mass function with distance from the center of the host galaxy. The problem is that a radial trend is expected for isotropic cluster orbits, and while the orbits are observed to be roughly isotropic, no radial trend in the globular cluster system is observed. I review three extant proposals to account for this, and discuss observations and calculations that might determine which of these is most correct. The final subject is the origin of the very weak mass-radius relation observed for globular clusters. I discuss how this strongly constrains how globular clusters form and evolve. I also note that the only viable current proposal to account for the observed weak mass-radius relation naturally effects the globular cluster mass function, and that these two problems may be closely related.

On the blue straggler population of the globular cluster M55

1997 ◽  
Vol 114 ◽  
pp. 1060 ◽  
Author(s):  
Georgi I. Mandushev ◽  
Gregory G. Fahlman ◽  
Harvey B. Richer ◽  
Ian B. Thompson
Keyword(s):  
Globular Cluster ◽  
Blue Straggler

AN ECLIPSING BLUE STRAGGLER IN THE GLOBULAR CLUSTER ω CENTAURI

2012 ◽  
Vol 144 (6) ◽  
pp. 161 ◽  
Author(s):  
Li Kai ◽  
Qian Sheng-Bang
Keyword(s):  
Globular Cluster ◽  
Blue Straggler

The eye of Gaia on globular cluster kinematics: Internal rotation

2019 ◽  
Vol 14 (S351) ◽  
pp. 516-519
Author(s):  
A. Sollima ◽  
H. Baumgardt ◽  
M. Hilker
Keyword(s):  
Internal Rotation ◽  
Globular Cluster ◽  
Globular Clusters ◽  
Stellar Systems ◽  
Large Sample ◽  
Data Release ◽  
Extensive Collection ◽  
Formation And Evolution ◽  
The Impact ◽  
Insight Into

AbstractI present the results of a survey of the kinematics of a large sample of Galactic globular clusters performed thanks to the synergy between the 2nd Gaia data release and the most extensive collection of radial velocities. This unprecedented dataset of 3D velocities of thousand of stars in 62 globular clusters has been used to investigate the rotation patterns of these stellar systems providing insight into the impact of two-body relaxation and tides on the formation and evolution of their rotation.

scholarly journals Theoretical Implications of the 47 Tuc Pulsars

2000 ◽  
Vol 177 ◽  
pp. 589-594
Author(s):  
Frederic A. Rasio
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
Radio Pulsars ◽  
Formation And Evolution ◽  
Millisecond Radio

AbstractTwenty millisecond radio pulsars have now been observed in the globular cluster 47 Tuc. This is by far the largest sample of radio pulsars known in any globular cluster. These recent observations provide a unique opportunity to re-examine theoretically the formation and evolution of recycled pulsars in globular clusters.

scholarly journals A new era for the globular cluster system in M31

2009 ◽  
Vol 5 (S266) ◽  
pp. 117-122
Author(s):  
Myung Gyoon Lee ◽  
Sang Chul Kim ◽  
Ho Seong Hwang ◽  
Hong Soo Park ◽  
Doug Geisler ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
Cluster System ◽  
Entire Body ◽  
Wide Field ◽  
Chemical Abundance ◽  
New Era ◽  
Group A ◽  
Formation And Evolution ◽  
Globular Cluster System

AbstractThe globular cluster system in M31 is an ideal laboratory for studying the formation and evolution of M31 as well as the globular clusters themselves. There have been numerous surveys and studies of the globular clusters in M31. However, only recently has the entire body of M31 been searched for globular clusters using wide-field CCD images by our group. A new era for the M31 globular cluster system has begun with the advent of wide-field CCD surveys of M31. We have discovered more than 100 new globular clusters in M31. Our catalog currently includes more than 500 globular clusters confirmed either based on spectra or HST images, many more than in the Milky Way. We present the structure, kinematics and chemical abundance of the M31 globular cluster system based on this large sample, and the implications for the formation and evolution of M31.

scholarly journals The Formation and Evolution of Star Clusters and Galaxies

2005 ◽  
Vol 13 ◽  
pp. 347-349
Author(s):  
Stephen E. Zepf
Keyword(s):  
Galaxy Formation ◽  
Globular Cluster ◽  
Globular Clusters ◽  
Near Infrared ◽  
Cluster Formation ◽  
Star Clusters ◽  
Elliptical Galaxies ◽  
Cluster Systems ◽  
Important Observation ◽  
Formation And Evolution

AbstractThis paper addresses the questions of what we have learned about how and when dense star clusters form, and what studies of star clusters have revealed about galaxy formation and evolution. One important observation is that globular clusters are observed to form in galaxy mergers and starbursts in the local universe, which both provides constraints on models of globular cluster formation, and suggests that similar physical conditions existed when most early-type galaxies and their globular clusters formed in the past. A second important observation is that globular cluster systems typically have bimodal color distributions. This was predicted by merger models, and indicates an episodic formation history for elliptical galaxies. A third and very recent result is the discovery of large populations of intermediate age globular clusters in several elliptical galaxies through the use of optical to near-infrared colors. These provide an important link between young cluster systems observed in starbursts and mergers and old cluster systems. This continuum of ages of the metal-rich globular cluster systems also indicates that there is no special age or epoch for the formation of the metal-rich globular clusters, which comprise about half of the cluster population. The paper concludes with a brief discussion of recent results on the globular cluster – low-mass X-ray binary connection.

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