English
Related papers

Related papers: A catalogue of Galactic GEMS: Globular cluster Ext…

200 papers

We study the dynamical evolution of star clusters on eccentric orbits using a semi-analytical approach. In particular we adapt and extend the equations of EMACSS code, introduced by Gieles et al. (2014), to work with eccentric orbits. We…

Astrophysics of Galaxies · Physics 2019-04-23 Hamid Ebrahimi , Hosein Haghi , Pouria Khalaj , Akram Hasani Zonoozi , Ghasem Safaei

We introduce a multi-component chemo-dynamical method for splitting the Galactic population of Globular Clusters (GCs) into three distinct constituents: bulge, disc, and stellar halo. The latter is further decomposed into the individual…

Planets and their host stars carry a long-term memory of their origin in their chemical compositions. Thus, identifying planets formed in different environments improves our understating of planetary formation. Although restricted to…

Based on recent findings of a formation mechanism of substructure in tidal tails by Kuepper, Macleod & Heggie (2008) we investigate a more comprehensive set of N-body models of star clusters on orbits about a Milky-Way-like potential. We…

Solar and Stellar Astrophysics · Physics 2015-05-14 A. H. W. Kuepper , P. Kroupa , H. Baumgardt , D. C. Heggie

The surroundings of globular clusters in the outer halo are one of the best places to look for the remnants of ancient dwarf satellites. The classical Searle & Zinn (1978) scenario of the formation of the Milky Way, in which the halo…

An increasing number of observations of the outer regions of globular clusters (GCs) have shown a flattening of the velocity dispersion profile and an extended surface density profile. Formation scenarios of GCs can lead to different…

Astrophysics of Galaxies · Physics 2019-05-15 Ian Claydon , Mark Gieles , Anna Lisa Varri , Douglas C. Heggie , Alice Zocchi

The formation of stars with light-element abundance variations in globular clusters and the subsequent dynamical evolution of these multiple populations remains an open question. One of the most widely discussed is the AGB scenario, in…

Astrophysics of Galaxies · Physics 2025-10-09 Mirek Giersz , Abbas Askar , Arkadiusz Hypki , Jongsuk Hong , Grzegorz Wiktorowicz , Lucas Hellstrom

A catalog of Galactic globular clusters has been compiled and used to analyze relations between the chemical and kinematic parameters of the clusters. The catalog contains positions, distances, luminosities, metallicites, and…

Astrophysics of Galaxies · Physics 2019-04-15 V. A. Marsakov , V. V. Koval' , M. L. Gozha

We analyse color-magnitude diagrams of eight Globular Clusters (GCs) in the outer Galactic Halo. Images were taken with the Wide Field Channel of the Advanced Camera for Survey and the Ultraviolet and Visual Channel of the Wide Field Camera…

Solar and Stellar Astrophysics · Physics 2015-12-02 A. P. Milone , A. F. Marino , L. R. Bedin , A. Dotter , H. Jerjen , D. Kim , D. Nardiello , G. Piotto , J. Cong

We report on the discovery and analysis of short-period (0.1 days $< P <$ 5 days), photometrically varying binary stars around and below the main-sequence turnoff of the globular clusters (GCs) NGC 3201, M10, & M12. These eclipsing binaries…

Astrophysics · Physics 2009-11-07 Kaspar von Braun

We present a comparison of high-resolution, integrated-light, detailed chemical abundances for Galactic and extragalactic globular clusters in both massive galaxies and dwarf galaxies. We include measurements of Fe, Ca, Si, Na, and Al for…

Cosmology and Nongalactic Astrophysics · Physics 2013-02-27 J. E. Colucci , R. A. Bernstein , A. McWilliam , J. G. Cohen

AIMS: In their 1st extension to the Milky Way Star Clusters (MWSC) survey, Schmeja et al. applied photometric filters to the 2MASS to find new cluster candidates that were subsequently confirmed or rejected by the MWSC pipeline. To further…

Solar and Stellar Astrophysics · Physics 2015-09-02 R. -D. Scholz , N. V. Kharchenko , A. E. Piskunov , S. Röser , E. Schilbach

A systematic search of the 2MASS point source catalog, covering 47% of the sky, was carried out aiming to reveal any hidden globular clusters in our Galaxy. Eight new star clusters were discovered by a search algorithm based on finding…

Astrophysics · Physics 2009-11-07 V. D. Ivanov , J. Borissova , P. Pessev , G. R. Ivanov , R. Kurtev

Stars that escape globular clusters form tidal tails that are predominantly shaped by the global distribution of mass in the Galaxy, but also preserve a historical record of small-scale perturbations. Using deep $grz$ photometry from…

Observed mass-to-light ratios (M/L) of metal-rich globular clusters (GCs) disagree with theoretical predictions. This discrepancy is of fundamental importance since stellar population models provide the stellar masses that underpin most of…

$Context$. The assembly history experienced by the Milky Way is currently being unveiled thanks to the data provided by the $Gaia$ mission. It is likely that the globular cluster system of our Galaxy has followed a similarly intricate…

Astrophysics of Galaxies · Physics 2019-09-25 Davide Massari , Helmer H. Koppelman , Amina Helmi

This study constitutes part of a larger effort aimed at better characterizing the Galactic globular clusters (GGCs) located towards the inner Milky Way bulge and disk. Here, we focus on internal kinematics of nine GGCs, obtained from…

Astrophysics of Galaxies · Physics 2021-01-06 Roger E. Cohen , Andrea Bellini , Mattia Libralato , Matteo Correnti , Thomas M. Brown , Jason S. Kalirai

Globular cluster systems (GCSs) are vital tools for investigating the violent star formation histories of their host galaxies. This violence could e.g. have been triggered by galaxy interactions or mergers. The basic observational…

Astrophysics · Physics 2009-11-07 Peter Anders , Richard de Grijs , Uta Fritze - v. Alvensleben

We report the discovery of 652 star clusters, stellar groups and candidates in the Milky Way with WISE. Most of the objects are projected close to Galactic Plane and are embedded clusters. The present sample complements a similar study…

Astrophysics of Galaxies · Physics 2015-12-03 Denilso Camargo , Eduardo Bica , Charles Bonatto

Stream stars removed by tides from their progenitor satellite galaxy or globular cluster act as a group of test particles on neighboring orbits, probing the gravitational field of the Milky Way. While constraints from individual streams…