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相关论文: Globular Cluster Halos around the brightest Fornax…

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We studied the properties of the globular cluster systems of five early--type galaxies in the Fornax galaxy cluster: NGC 1374, NGC 1379, NGC 1387, NGC 1427, and the central giant elliptical NGC 1399. From the investigation of their number…

天体物理学 · 物理学 2007-05-23 M. Kissler-Patig , S. Kohle , M. Hilker , T. Richtler , L. Infante , H. Quintana

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…

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

We investigate the kinematics of a combined sample of 74 globular clusters around NGC 1399. Their high velocity dispersion, increasing with radius, supports their association with the gravitational potential of the galaxy cluster rather…

The Fornax cluster galaxies NGC 1399 and NGC 1404 are ideal for studying the effects of a cluster environment on globular cluster systems. Here we present new optical imaging of these two galaxies from both the Hubble Space Telescope's Wide…

天体物理学 · 物理学 2009-10-30 Duncan Forbes , Carl Grillmair , Gerard Williger , R. Elson , Jean Brodie

We present a photometric study of the globular cluster systems of the Fornax cluster galaxies NGC 1374, NGC 1379, and NGC 1387. The data consists of images from the wide-field MOSAIC Imager of the CTIO 4-m telescope, obtained with…

天体物理学 · 物理学 2009-11-13 Lilia P. Bassino , Tom Richtler , Boris Dirsch

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…

星系天体物理 · 物理学 2015-12-24 Michael Hilker , Tom Richtler

The giant elliptical galaxy NGC 1316 is the brightest galaxy in the Fornax cluster, and displays a number of morphological features that might be interpreted as an intermediate age merger remanent ($\sim$3 Gyr). Based on the idea that…

星系天体物理 · 物理学 2017-09-05 Leandro A. Sesto , Favio R. Faifer , Juan C. Forte , Analía V. Smith Castelli

We report moderate resolution, high signal-to-noise spectroscopy of globular clusters around NGC 1399, the central cD galaxy in the Fornax cluster. We address issues as diverse as element abundances of globular clusters versus stellar…

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.…

天体物理学 · 物理学 2009-10-31 M. Hilker , L. Infante , T. Richtler

Globular cluster systems (GCS) frequently show a bi-modal distribution of the cluster integrated colours. This work explores the arguments to support the idea that the same feature is shared by the diffuse stellar population of the galaxy…

天体物理学 · 物理学 2009-11-10 Juan C. Forte , Favio Faifer , Doug Geisler

Radial velocities of 94 galaxies brighter than about V_tot = 20 mag in the direction of the central Fornax cluster have been measured. Except for 8 Fornax members, all galaxies lie in the background. Among the 8 members, there are 5…

天体物理学 · 物理学 2009-10-30 M. Hilker , L. Infante , G. Vieria , M. Kissler-Patig , T. Richtler

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…

天体物理学 · 物理学 2009-10-30 Carl J. Grillmair , Duncan A. Forbes , Jean P. Brodie , Rebecca Elson

(Abridged) We use the largest set of globular cluster velocities obtained so far of any elliptical galaxy to revise and extend the previous investigations of the dynamics of NGC 1399, the central dominant galaxy of the nearby Fornax cluster…

宇宙学与河外天体物理 · 物理学 2015-05-14 Y. Schuberth , T. Richtler , M. Hilker , B. Dirsch , L. P. Bassino , A. J. Romanowsky , L. Infante

NGC 1380 is a lenticular galaxy located near the centre of the Fornax Cluster northeast of NGC 1399. The globular cluster system of this galaxy was previously studied only from the ground. Recent studies of similar early-type galaxies,…

天体物理学 · 物理学 2009-11-13 A. L. Chies-Santos , B. X. Santiago , M. G. Pastoriza

We present a preliminary analysis of HST-WFPC2 observations of globular cluster systems in the two brightest galaxies, UGC 9799 (cD) and NGC 1129 (non-cD), located in the center of rich clusters.

天体物理学 · 物理学 2007-05-23 Myung Gyoon Lee , Eunhyeuk Kim , Doug Geisler , Terry Bridges , Keith Ashman

We investigated the globular cluster system of the S0 galaxy NGC 1380 in the Fornax cluster with deep BVR photometry. We identified two, presumably old, populations of globular clusters. The blue globular clusters seem to be counterparts to…

天体物理学 · 物理学 2007-05-23 Markus Kissler-Patig , Tom Richtler , Jesper Storm , Massimo Della Valle

We present the first results of a deep Chandra survey of the inner 1 degree of the Fornax cluster of galaxies. Ten 50 ksec pointings were obtained in a mosaic centered on the giant elliptical galaxy NGC 1399 at the nominal cluster center.…

天体物理学 · 物理学 2009-11-10 C. A. Scharf , D. R. Zurek , M. Bureau

We present preliminary results of our dynamical study of the outer globular cluster system of NGC 1399, the central galaxy in the Fornax Cluster. About 160 new radial velocities for globular clusters at projected galactocentric distances…

天体物理学 · 物理学 2007-05-23 Y. Schuberth , T. Richtler , B. Dirsch , M. Hilker , S. Larsen

We have obtained deep photometry of NGC 1199 (in HCG 22) and NGC 6868 (in the Telescopium group). Both galaxies are the optically brightest galaxies of their groups. Our analysis of B and R images taken with the Keck II and the VLT/ESO…

天体物理学 · 物理学 2009-11-06 C. Da Rocha , C. Mendes de Oliveira , M. Bolte , B. L. Ziegler , T. H. Puzia

We present 8 bright globular clusters and/or objects of less familiar nature which we found in the course of scrutinizing the globular cluster system of NGC 1399. These objects are morphologically striking, either by their sizes or by other…

天体物理学 · 物理学 2009-11-11 T. Richtler , B. Dirsch , S. Larsen , M. Hilker , L. Infante
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