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Related papers: Three Galactic globular cluster candidates

200 papers

We provide evidence that indicate the star cluster Pfleiderer 2, which is projected in a rich field, as a newly identified Galactic globular cluster. Since it is located in a crowded field, core extraction and decontamination tools were…

Astrophysics of Galaxies · Physics 2015-05-13 Sergio Ortolani , Charles Bonatto , Eduardo Bica , Beatriz Barbuy

Open clusters are central elements of our understanding of the Galactic disk evolution, as an accurate determination of their parameters leads to an unbiased picture of our Galaxy's structure. Extending the analysis towards fainter…

Astrophysics of Galaxies · Physics 2021-02-22 K. Peña Ramírez , C. González-Fernández , A. -N. Chené , S. Ramírez Alegría

Context. The globular cluster (GC) system of Circinus galaxy has not been probed previously partly because of the location of the galaxy at - 3.8$^\circ$ Galactic latitude which suffers severely from interstellar extinction, stellar…

Astrophysics of Galaxies · Physics 2023-02-01 C. Obasi , M. Gómez , D. Minniti , J. Alonso-García , M. Hempel , J. B. Pullen , M. D. Gregg , L. D. Baravalle , M. V. Alonso , B. I. Okere

The sample of known star clusters, the fundamental building blocks of galaxies, in the Milky Way is still extremely incomplete for objects beyond a distance of 1-2kpc. Many of the more distant and young clusters are compact and hidden…

Astrophysics of Galaxies · Physics 2017-07-19 D. Froebrich

VISTA Variables in the V\'{\i}a L\'actea (VVV) is one of the six ESO Public Surveys operating on the new 4-meter Visible and Infrared Survey Telescope for Astronomy (VISTA). VVV is scanning the Milky Way bulge and an adjacent section of the…

The recent exquisite Gaia astrometric, photometric, and radial velocity (RV) measurements resulted in a substantial advancement for the determination of the orbits for old star clusters, including the oldest Milky Way globular clusters (MW…

We investigate the nature of the recently catalogued star cluster candidate FSR584, which is projected in the direction of the molecular cloud W3 and may be the nearest globular cluster to the Sun. 2MASS CMDs, the stellar radial density…

Astrophysics · Physics 2009-11-13 E. Bica , C. Bonatto , S. Ortolani , B. Barbuy

The Quintuplet cluster is one of the most massive star clusters in the Milky Way, situated very close to the Galactic center. We present a new search for variable stars in the vicinity of the cluster, using the five-year database of the…

Solar and Stellar Astrophysics · Physics 2016-07-26 C. Navarro Molina , J. Borissova , M. Catelan , J. Alonso-García , E. Kerins , R. Kurtev , P. W. Lucas , N. Medina , D. Minniti , I. Dékány

Globular clusters (GCs) in the Milky Way (MW) bulge are very difficult to study because: i) they suffer from the severe crowding and galactic extinction; which are characteristic of these inner Galactic regions ii) they are more prone to be…

Astrophysics of Galaxies · Physics 2021-10-13 Casmir Obasi , Matias Gomez , Dante Minniti , Javier Alonso-Garcia

Globular clusters are gravitationally bound stellar systems containing on the order of 100,000 stars. Due to the high stellar densities in the cores of these clusters, close encounters and even physical collisions between stars are…

Astrophysics · Physics 2007-05-23 Christian Knigge

The kinematical and spatial properties of the metal-rich globular clusters in the Galaxy ([Fe/H] > -0.8) indicates that these objects do not comprise a homogeneous population. Three subsystems are identified. The highest-mass clusters…

Astrophysics · Physics 2007-05-23 A. Burkert , G. Smith

We report the discovery of a probable new globular cluster in the disk of the Milky Way. Visible in 2MASS and the GLIMPSE survey, it has an estimated foreground extinction of A_V ~ 24 mag. The absolute magnitude of the cluster and the…

Astrophysics · Physics 2009-11-13 Jay Strader , Henry A. Kobulnicky

We report the discovery of significant localized structures in the projected two-dimensional (2D) spatial distributions of the Globular Cluster (GC) systems of the ten brightest galaxies in the Virgo Cluster. We use catalogs of GCs…

Astrophysics of Galaxies · Physics 2015-05-27 R. D'Abrusco , G. Fabbiano , A. Zezas

We report the discovery of a large timescale candidate microlensing event of a bulge stellar source based on near-infrared observations with the VISTA Variables in the Via Lactea Survey (VVV). The new microlensing event is projected only…

Solar and Stellar Astrophysics · Physics 2015-09-16 D. Minniti , R. Contreras Ramos , J. Alonso-Garcia , T. Anguita , M. Catelan , F. Gran , V. Motta , G. Muro , K. Rojas , R. K. Saito

Context: The ESO Public Survey "VISTA Variables in the V\'ia L\'actea" (VVV) provides deep multi-epoch infrared observations for an unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Aims: The VVV…

Context: The VISTA Variables in the Via Lactea (VVV) and its extension (VVVX) are near-infrared surveys mapping the Galactic bulge and adjacent disk. These data have enabled the discovery of numerous star clusters obscured by high and…

In this contribution, first results of deep VLT photometry (V,I) in the central region of the Hydra I and Centaurus galaxy clusters are presented. In both galaxy clusters, many star clusters have been identified down to the turnover…

Astrophysics · Physics 2007-05-23 Michael Hilker

The properties of globular cluster systems (GCSs) in the core of the nearby galaxy clusters Fornax and Hydra I are presented. In the Fornax cluster we have gathered the largest radial velocity sample of a GCS system so far, which enables us…

Astrophysics of Galaxies · Physics 2015-12-24 Michael Hilker , Tom Richtler

We investigate the connection between globular clusters and ultra-compact dwarf galaxies (UCDs) by examining the properties of several compact objects associated with M87, all of which were previously classified as globular clusters.…

We present ultraviolet (UV) photometry of M31 globular clusters (GCs) found in 23 Galaxy Evolution Explorer (GALEX) images covering the entirety of M31. We detect 485 and 273 GCs (and GC candidates) in the near-ultraviolet (NUV; 2267 A) and…