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We confirm and extend our previous detection of a population of intergalactic globular clusters in Abell 1185, and report the first discovery of an intergalactic globular cluster in the nearby Virgo cluster of galaxies. The numbers, colors…

We summarise some recent results about nearby galactic bulges that are relevant to their formation. We highlight a number of significant advances in our understanding of the surface brightness profiles, stellar populations, and especially…

Astrophysics · Physics 2007-05-23 Reynier Peletier , Marc Balcells , Jesus Falcon-Barroso , Alister Graham

The millisecond pulsars discovered in globular clusters are diagnostic tools for studying the dynamics of the clusters, the intracluster ionized gas and the evolution of the binaries embedded in the cluster. In the first two years of a…

Astrophysics · Physics 2007-05-23 A. Possenti

The central regions of galaxies show the presence of massive black holes and/or dense stellar systems. The question about their modes of formation is still under debate. A likely explanation of the formation of the central dense stellar…

Cosmology and Nongalactic Astrophysics · Physics 2013-02-12 R. Capuzzo-Dolcetta , M. Arca-Sedda , M. Spera

Young massive clusters are dense aggregates of young stars that form the fundamental building blocks of galaxies. Several examples exist in the Milky Way Galaxy and the Local Group, but they are particularly abundant in starburst and…

Astrophysics of Galaxies · Physics 2015-05-18 Simon Portegies Zwart , Steve McMillan , Mark Gieles

In this paper, I review some of the basic properties of the pulsar population in globular clusters (GCs) and compare it with the the Galactic disk population. The neutron stars (NSs) in GCs were likely formed - and appear to continue…

Astrophysics of Galaxies · Physics 2015-06-11 Paulo C. C. Freire

Star clusters are fundamental units of stellar feedback and unique tracers of their host galactic properties. In this review, we will first focus on their constituents, i.e.\ detailed insight into their stellar populations and their…

Astronomers have constructed models of globular clusters for over 100 years. These models mainly fall into two categories: (i) static models, such as King's model and its variants, and (ii) evolutionary models. Most attention has been given…

Astrophysics · Physics 2009-11-13 D. C. Heggie , M. Giersz

Updated data of the 153 Galactic globular clusters are used to readdress fundamental parameters of the Milky Way. We build a reduced sample, decontaminated of the clusters younger than 10Gyr, those with retrograde orbits and/or evidence of…

Astrophysics · Physics 2011-03-28 Eduardo Bica , Charles Bonatto , Beatriz Barbuy , Sergio Ortolani

In this paper we analyze data of 8 elliptical galaxies in order to study the difference between their globular cluster systems (GCSs) radial distributions and those of the galactic stellar component. In all the galaxies studied here the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Roberto Capuzzo-Dolcetta , Alessandra Mastrobuono-Battisti

Aims - We present the first results of a large spectroscopic survey of globular clusters and candidate globular clusters in the nearby M~31 galaxy. The survey is aimed at the classification of known candidate M~31 clusters and at the study…

Astrophysics · Physics 2009-11-11 S. Galleti , L. Federici , M. Bellazzini , A. Buzzoni , F. Fusi Pecci

Deep imaging data from the Keck II telescope are employed to study the globular cluster (GC) populations in the cores of six rich Abell clusters. The sample includes A754, A1644, A2124, A2147, A2151, and A2152, and spans the redshift range…

Astrophysics · Physics 2009-10-31 John P. Blakeslee

The large galaxies in the Local Group, while all disk galaxies, have diverse stellar populations. A better understanding of these differences, and a physical understanding of the causes, requires more detailed study of the older…

Astrophysics · Physics 2007-05-23 Rosemary F. G. Wyse

We examine the dynamics of the stars and globular clusters in the nearby giant galaxy M87 and constrain the mass distribution, using all the available data over a large range of radii, including higher-order moments of the stellar…

Astrophysics · Physics 2009-10-31 Aaron J. Romanowsky , Christopher S. Kochanek

The dynamical evolution of the globular cluster systems in galaxies is predicted, based on the standard dynamical theory normalized to the example of the Milky Way. The major processes varying with the galactocentric distance are the tidal…

Astrophysics · Physics 2009-10-28 Jeremiah P. Ostriker , Oleg Y. Gnedin

We review the observed properties of globular cluster systems and their implications for models of galaxy formation. Observations show that globular clusters form in gas-rich mergers, and that bimodal metallicity distributions are common in…

Astrophysics · Physics 2007-05-23 Stephen E. Zepf , Keith M. Ashman

Recent wide-area surveys have enabled us to study the Milky Way with unprecedented detail. Its inner regions, hidden behind dust and gas, have been partially unveiled with the arrival of near-IR photometric and spectroscopic datasets. Among…

The total number of globular clusters (GCs) in a galaxy rises continuously with the galaxy luminosity L, while the relative number of galaxies decreases with L following the Schechter function. The product of these two very nonlinear…

Astrophysics of Galaxies · Physics 2016-04-13 William E. Harris

Shells in Elliptical Galaxies are faint, sharp-edged features, believed to provide evidence of a recent ($\sim 0.5 - 2 \times 10^9$ years ago) merger event. We analyse the Globular Cluster (GC) systems of six shell elliptical galaxies, to…

Astrophysics · Physics 2009-11-11 G. Sikkema , R. F. Peletier , D. Carter , E. A. Valentijn , M. Balcells

We present the results of a systematic Milky Way satellite search performed across an array of publicly available wide-area photometric surveys. Our aim is to complement previous searches by widening the parameter space covered.…

Astrophysics of Galaxies · Physics 2019-01-28 G. Torrealba , V. Belokurov , S. E. Koposov
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