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We present HST Planetary Camera V and I~band images of the central region of the peculiar giant elliptical galaxy NGC 1316. The inner profile is well fit by a nonisothermal core model with a core radius of 0.41" +/- 0.02" (34 pc). At an…

We present a catalogue of photometric and structural properties of 228 nuclear star clusters (NSCs) in nearby late-type disk galaxies. These new measurements are derived from a homogeneous analysis of all suitable WFPC2 images in the $HST$…

Astrophysics of Galaxies · Physics 2015-06-19 Iskren Y. Georgiev , Torsten Böker

Radial velocities of 468 globular clusters around NGC 1399, the central galaxy in the Fornax cluster, have been obtained with FORS2 and the Mask Exchange Unit (MXU) at the ESO Very Large Telescope. This is the largest sample of globular…

We here present the luminosity function (LF) of globular clusters (GCs) in five nearby spiral galaxies using the samples of GC candidates selected in Hubble Space Telescope mosaic images in F435W, F555W and F814W filters. Our search, which…

Astrophysics of Galaxies · Physics 2021-10-20 Luis Lomelí-Núñez , Y. D. Mayya , L. H. Rodríguez-Merino , P. A. Ovando , D. Rosa-González

We present wide-field spectroscopy of globular clusters around the Leo I group galaxies NGC 3379 and NGC 3384 using the FLAMES multi-fibre instrument at the VLT. We obtain accurate radial velocities for 42 globular clusters (GCs) in total,…

Astrophysics · Physics 2009-11-11 G. Bergond , S. E. Zepf , A. J. Romanowsky , R. M. Sharples , K. L. Rhode

The two brightest elliptical galaxies in the Eridanus A group, NGC 1400 and NGC 1407, have been observed in both the Washington T_1 and Kron-Cousins I filters to obtain photometry of their globular cluster systems (GCSs). This group of…

Astrophysics · Physics 2009-10-28 K. M. Perrett , D. A. Hanes , S. T. Butterworth , JJ Kavelaars , D. Geisler , W. E. Harris

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 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

We use high-resolution Hubble Space Telescope imaging data of dwarf galaxies in the Local Volume ($\lesssim 11$ Mpc) to parameterise 19 newly discovered nuclear star clusters (NSCs). Most of the clusters have stellar masses of…

Astrophysics of Galaxies · Physics 2023-02-01 Nils Hoyer , Nadine Neumayer , Anil C. Seth , Iskren Y. Georgiev , Jenny E. Greene

We examine the luminosity and B-I color distribution of globular clusters for three early-type galaxies in the Fornax cluster using imaging data from the Wide Field/Planetary Camera 2 on the Hubble Space Telescope. The luminosity functions…

Astrophysics · Physics 2009-10-30 Carl J. Grillmair , Duncan A. Forbes , Jean P. Brodie , Rebecca Elson

The Antlia galaxy cluster is the third nearest galaxy cluster after Virgo and Fornax. We used the wide-field MOSAIC camera of the 4-m CTIO telescope to search in the brightest cluster galaxies for globular cluster systems, which were…

Astrophysics · Physics 2009-11-10 B. Dirsch , T. Richtler , L. P. Bassino

Globular Cluster (GC) formation seems to be a widespread mode of star formation in extreme starbursts triggered by strong interactions and mergers of massive gas-rich galaxies. We use our detailed chemically consistent evolutionary…

Astrophysics · Physics 2015-06-10 Uta Fritze -- v. Alvensleben

The extended stellar halos of galaxies contain important clues for investigating their assembly history and evolution. We investigate the resolved stellar content and the extended halo of NGC 5128 as a function of galactocentric distance.…

Astrophysics of Galaxies · Physics 2022-01-05 M. Rejkuba , W. E. Harris , L. Greggio , D. Crnojević , G. L. H. Harris

We present new metallicity estimates for globular cluster (GC) candidates in the Sd spiral NGC 300, one of the nearest spiral galaxies outside the Local Group. We have obtained optical spectroscopy for 44 Sculptor Group GC candidates with…

Astrophysics · Physics 2010-02-24 J. B. Nantais , J. P. Huchra , P. Barmby , K. A. G. Olsen

We present a kinematic analysis of the globular cluster (GC) system in the giant elliptical galaxy (gE) M60 in the Virgo cluster. Using the photometric and spectroscopic database of 121 GCs (83 blue GCs and 38 red GCs), we have investigated…

We investigate whether the globular clusters (GCs) in the recently published sample of GCs in the Fornax cluster by Bergond and coworkers are indeed intra-cluster objects. We combine the catalogue of radial velocity measurements by Bergond…

Astrophysics · Physics 2009-11-13 Y. Schuberth , T. Richtler , L. Bassino , M. Hilker

We present g and z photometry and size estimates for globular clusters (GCs) in the massive Virgo elliptical NGC 4649 (M60) using a five-pointing Hubble Space Telescope/Advanced Camera for Surveys mosaic. The metal-poor GCs show a monotonic…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Jay Strader , Giuseppina Fabbiano , Bin Luo , Dong-Woo Kim , Jean P. Brodie , Tassos Fragos , John S. Gallagher , Vassiliki Kalogera , Andrew King , Andreas Zezas

We present a kinematic analysis of the globular cluster(GC) system in the giant elliptical galaxy (gE) NGC 4636 in the Virgo cluster. Using the photometric and spectroscopic database of 238 GCs, we have investigated the kinematics of the GC…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Myung Gyoon Lee , Hong Soo Park , Ho Seong Hwang , Nobuo Arimoto , Naoyuki Tamura , Masato Onodera

The relation between the total mass contained in the globular clusters of a galaxy and the mass of its dark matter halo has been found observationally to be nearly linear over five decades of mass. However, the high-mass end of this…

Astrophysics of Galaxies · Physics 2023-07-05 Veronika Dornan , William E. Harris

We detect 353 X-ray point sources, mostly low-mass X-ray binaries (LMXBs), in four Chandra observations of Centaurus A (NGC 5128), the nearest giant early-type galaxy, and correlate this point source population with the largest available…