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Related papers: The Outer Halo Cluster System of NGC 1399

200 papers

We use deep images taken with the Advanced Camera for Surveys on board the Hubble Space Telescope of the disk galaxy NGC 891, to search for globular cluster candidates. This galaxy has long been considered to be a close analog in size and…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 W. E. Harris , M. Mouhcine , M. Rejkuba , R. Ibata

We study the globular cluster system (GCS) of the giant elliptical NGC4374 (M84) in the Virgo cluster using B and R photometry. The colour distribution is bimodal with peaks at B-R=1.11 and B-R=1.36, fitting well to those found in other…

Astrophysics · Physics 2009-11-10 M. Gomez , T. Richtler

NGC 1316 (Fornax A) is a prominent merger remnant in the outskirts of the Fornax cluster. The cluster system has not yet been studied in its entirety. We therefore present a wide-field study of the globular cluster system of NGC 1316,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 T. Richtler , L. P. Bassino , B. Dirsch , B. Kumar

We present the largest sample ($\sim$13,000 candidates, $\sim$3000 of wich are bona-fide candidates) of globular cluster (GCs) candidates reported in the Fornax Cluster so far. The survey is centered on the NGC 1399 galaxy, extending out to…

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

Globular clusters in the outer halo (R_gc > 15 kpc) are found to be systematically fainter than those at smaller Galactocentric distances. Within the outer halo the compact clusters with half-light radii R_h < 10 pc are only found at R_gc <…

Astrophysics · Physics 2009-09-17 Sidney van den Bergh , Dougal Mackey

In this paper we briefly review the properties of the dwarf galaxy population at the core of the Fornax cluster, as well as the properties of the extraordinary rich globular cluster system and the cD halo around the central galaxy NGC 1399.…

Astrophysics · Physics 2009-10-31 M. Hilker , L. Infante , T. Richtler

We present the serendipitous discovery of 195 extragalactic globular clusters (GCs) in one of the deepest optical images ever obtained, a 126 orbit HST/ACS imaging study of the nearby Galactic GC NGC 6397. The distant GCs are all found…

Astrophysics · Physics 2009-11-13 Jasonjot S. Kalirai , Jay Strader , Harvey B. Richer , Jay Anderson

This paper explores the quantitative connection between globular clusters and the diffuse stellar population of the galaxies they are associated with. Both NGC 1399 and NGC 4486 (M87) are well suited for this kind of analysis due to their…

Astrophysics · Physics 2009-11-13 J. C. Forte , F. R. Faifer , D. Geisler

We present extensive new photometry in (g',i') of the large globular cluster (GC) system around NGC 3311, the central cD galaxy in the Hydra cluster. Our GMOS data cover a 5.5' field of view and reach a limiting magnitude i' = 26, about 0.5…

Astrophysics · Physics 2009-11-13 Elizabeth Wehner , Bill Harris , Brad Whitmore , Barry Rothberg , Kristin Woodley

We present the first comprehensive abundance study of the massive, outer halo globular cluster (GC) M 75 (NGC 6864). This unique system shows a very extended trimodal horizontal branch (HB), but no other clues for multiple populations have…

Astrophysics of Galaxies · Physics 2013-01-11 Nikolay Kacharov , Andreas Koch

We present new multiband photometry for the Galactic globular cluster IC 4499 extending well past the main sequence turn-off in the U, B, V, R, I, and DDO51 bands. This photometry is used to determine that IC4499 has an age of 12 pm 1 Gyr…

Solar and Stellar Astrophysics · Physics 2015-05-27 A. R. Walker , A. M. Kunder , G. Andreuzzi , A. Di Cecco , P. B. Stetson , M. Monelli , S. Cassisi , G. Bono , R. De Propris , M. Dall'Ora , J. M. Nemec , M. Zoccali

As part of our survey of galactic stellar halos, we investigate the structure and stellar populations of the northern outer part of the stellar halo in NGC55, a member galaxy of the Sculptor Group, using deep and wide-field V- and I-band…

Astrophysics of Galaxies · Physics 2011-08-25 Mikito Tanaka , Masashi Chiba , Yutaka Komiyama , Puragra Guhathakurta , Jason S. Kalirai

We report the discovery of three new star clusters in the halo of the Local Group dwarf irregular galaxy NGC 6822. These clusters were found in the deep images taken with the MegaPrime at the CFHT, covering a total field of 2 deg x 2 deg.…

We present a multi-band photometric catalog of $\approx$ 1.7 million cluster members for a field of view of $\approx$ 2x2 degree across $\omega$ Cen. Photometry is based on images collected with the Dark Energy Camera on the 4m Blanco…

Astrophysics of Galaxies · Physics 2017-04-05 A. Calamida , G. Strampelli , A. Rest , G. Bono , I. Ferraro , A. Saha , G. Iannicola , D. Scolnic , D. James , C. Smith , A. Zenteno

We use deep (~27.5 mag V-band point-source limiting magnitude) V- and U-band LBT imaging to study the outer disk (beyond the optical radius R_25) of the non-interacting, face-on spiral galaxy NGC 3184 (D = 11.1 Mpc; R_25 = 11.1 kpc) and…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-03 S. Herbert-Fort , D. Zaritsky , J. Moustakas , D. Christlein , E. Wilcots , A. Baruffolo , A. DiPaola , A. Fontana , E. Giallongo , R. W. Pogge , R. Ragazzoni , R. Smareglia

We investigate the globular cluster system around the low-luminosity S0 galaxy NGC 7457 with deep B, V, I photometry. From the V photometry the total number of globular clusters around the galaxy is estimated to be 178 +- 75. The specific…

Astrophysics · Physics 2007-05-23 S. Chapelon , V. Buat , D. Burgarella , M. Kissler-Patig

We present new HST/WFPC2 (V,I) photometry for the red-giant stars in NGC 5128 at a projected distance of 8 kpc from the galaxy center, which probe a mixture of its inner halo and outer bulge. The color-magnitude diagram shows an old…

Astrophysics · Physics 2009-11-07 W. E. Harris , G. L. H. Harris

We present the combined results of two investigations: a large-scale study of the globular cluster system (GCS) around NGC 1399, the central galaxy of the Fornax cluster, and a study of the GCSs around NGC 1374, NGC 1379 and NGC 1387, three…

Astrophysics · Physics 2007-05-23 L. P. Bassino , T. Richtler , F. R. Faifer , J. C. Forte , B. Dirsch , D. Geisler , Y. Schuberth

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