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The spatial distribution of known globular clusters (GCs) in the Milky Way shows that the current census of GCs is incomplete in the direction of the Galactic plane. We present the discovery of two new GCs located close to the Galactic…

Astrophysics of Galaxies · Physics 2018-08-29 Jinhyuk Ryu , Myung Gyoon Lee

Star clusters are invaluable tracers of the Galactic components and the discovery and characterization of low-mass stellar systems can be used to appraise their prevailing disruption mechanisms and time scales. However, owing to the…

Astrophysics of Galaxies · Physics 2017-09-27 Andreas Koch , Andrea Kunder , Jennifer Wojno

The census of the globular clusters (GCs) in the Milky Way (MW) is still a work in progress. We explore the nature of 19 new GC candidates in the Galactic bulge, based on the analysis of their colour-magnitude diagrams (CMDs) in the…

Astrophysics of Galaxies · Physics 2022-02-09 E. R. Garro , D. Minniti , M. Gómez , J. Alonso-García , V. Ripepi , J. G. Fernández-Trincado , F. Vivanco Cádiz

Context. The Sagittarius (Sgr) dwarf galaxy is merging with the Milky Way, and the study of its globular clusters (GCs) is important to understand the history and outcome of this ongoing process. Aims. Our main goal is to characterize the…

Astrophysics of Galaxies · Physics 2021-06-30 D. Minniti , M. Gómez , J. Alonso-García , R. K. Saito , E. R. Garro

We study the globular cluster (GC) systems in three representative fossil group galaxies: the nearest (NGC6482), the prototype (NGC1132) and the most massive known to date (ESO306-017). This is the first systematic study of GC systems in…

We present a new photometric catalogue of the rich globular cluster (GC) system around M87, the brightest cluster galaxy in Virgo. Using archival Next Generation Virgo cluster Survey (NGVS) images in the ugriz bands, observed with…

Astrophysics of Galaxies · Physics 2015-11-24 L. J. Oldham , M. W. Auger

This work reports the discovery of three new globular clusters (GCs) towards the Galactic bulge - Camargo 1107, 1108, and 1109. The discovery was made using the WISE, 2MASS, VVV, and Gaia-DR2 photometry. The new findings are old (12.0-13.5…

Astrophysics of Galaxies · Physics 2019-01-25 Denilso Camargo , Dante Minniti

We present deep near-infrared photometry and spectroscopy of the globular cluster 2MASS-GC03 projected in the Galactic disk using MMIRS on the Clay telescope (Las Campanas Observatory) and VISTA Variables in the Via Lactea survey (VVV)…

We present detailed chemical abundances, radial velocities and orbital parameters for FSR 1758, a recently discovered star cluster in the direction of the Galactic Bulge. High resolution (R~42,000) spectra were obtained using the…

Astrophysics of Galaxies · Physics 2019-09-25 Sandro Villanova , Lorenzo Monaco , Julia O'Connell , Doug Geisler , Dante Minniti , Paulina Assmann , Rodolfo Barba

We present a study of globular clusters in the inner region of the giant elliptical galaxy NGC 4472, based on the HST WFPC2 archive data. We have found about 1560 globular cluster candidates at the galactocentric radius r < 4 arcmin.…

Astrophysics · Physics 2009-10-31 Myung Gyoon Lee , Eunhyeuk Kim

1057 globular cluster candidates have been identified in a WFPC2 image of the inner region of M87. The Globular Cluster Luminosity Function (GCLF) can be well fit by a Gaussian profile with a mean value of m_V^0=23.67 +/- 0.07 mag and…

Astrophysics · Physics 2009-10-05 A. Kundu , B. C. Whitmore , W. B. Sparks , F. D. Macchetto , S. E. Zepf , K. M. Ashman

We present results from 2MASS JKs photometry on the physical reality of recently reported globular cluster (GC) candidates in the Milky Way (MW) bulge. We relied our analysis on photometric membership probabilities that allowed us to…

Astrophysics of Galaxies · Physics 2018-04-04 Andrés E. Piatti

We present results from a wide-field imaging study of the globular cluster (GC) systems of a sample of edge-on, Sb-Sc spiral galaxies ~7-20 Mpc away. This study is part of a larger survey of the ensemble properties of the GC populations of…

Astrophysics · Physics 2008-11-26 Katherine L. Rhode , Stephen E. Zepf , Arunav Kundu , Aaron N. Larner

We study the nature of the globular cluster (GC) candidates FSR 1603 and FSR 1755 selected from the catalogue of \citet{FSRcat}. Their properties are investigated with 2MASS field-star decontaminated photometry, which is used to build…

Astrophysics · Physics 2009-11-13 Eduardo Bica , Charles Bonatto

A detailed imaging analysis of the globular cluster (GC) system of the Sombrero galaxy (NGC 4594) has been accomplished using a six-image mosaic from the Hubble Space Telescope Advanced Camera for Surveys. The quality of the data is such…

Astrophysics · Physics 2008-11-26 L. R. Spitler , S. S. Larsen , J. Strader , J. P. Brodie , D. A. Forbes , M. A. Beasley

We present the first color-magnitude study for Palomar 2, a distant and heavily obscured globular cluster near the Galactic anticenter. Our (V,V-I) color-magnitude diagram (CMD), obtained with the UH8K camera at the CFHT, reaches V(lim) =…

Astrophysics · Physics 2009-10-30 W. E. Harris , P. R. Durrell , G. R. Petitpas , T. M. Webb , S. C. Woodworth

We explore the rich globular cluster (GC) system of the nearby Sa galaxy M104, the "Sombrero" (NGC 4594), using archive WFPC2 data. The GC colour distribution is found to be bimodal at the > 99% level, with peaks at V-I = 0.96+/-0.03 and…

Astrophysics · Physics 2009-11-06 Soeren S. Larsen , Duncan A. Forbes , Jean P. Brodie

We present a study of globular clusters (GCs) in 17 relatively nearby early-type galaxies, based on deep HST/WFPC2 F555W and F814W images. We compare color distributions, cluster sizes and luminosity functions with those of GCs in the Milky…

Astrophysics · Physics 2008-11-26 S. S. Larsen , J. P. Brodie , J. P. Huchra , D. A. Forbes , C. Grillmair

Discerning the nature of open cluster candidates is essential for both individual and statistical analyses of cluster properties. Here we establish the nature of thirteen cluster candidates from the FSR cluster list using photometry from…

Astrophysics of Galaxies · Physics 2016-11-14 A. S. M. Buckner , D. Froebrich

We present a photometric analysis of globular clusters (GCs) in the massive galaxy cluster MACS J0416.1-2403 (z = 0.397) using deep JWST/NIRCam imaging from the PEARLS program. PSF photometry was performed in the short wavelength filters…