200 citations · 1.1k across the 24 of their papers we have counts for
24 papers
Age -- Metallicity relation in the MCs clusters (Based on observations made with the Danish 1.54 m and ESO 3.6m Telescopes at La Silla Observatory, Chile)
E. Livanou, A. Dapergolas, M. Kontizas +5
Aims: To investigate a possible dependence between age and metallicity in the Magellanic Clouds (MCs) from a study of small open star clusters, using Strömgren photometry. Our goal…
Dynamics of the NGC 4636 globular cluster system II. Improved constraints from a large sample of globular cluster velocities
Ylva Schuberth, Tom Richtler, Michael Hilker +3
We present new radial velocities for 289 globular clusters around NGC 4636, the southernmost giant elliptical galaxy of the Virgo cluster. The data were obtained with FORS2/MXU at…
The globular cluster system of NGC 1316. II - The extraordinary object SH2
T. Richtler, B. Kumar, L. P. Bassino +2
SH2 has been described as an isolated HII-region, located about 6.5 arcmin south of the nucleus of NGC 1316 (Fornax A), a merger remnant in the the outskirts of the Fornax cluster…
The globular cluster system of NGC1316. I. Wide-field photometry in the Washington system
T. Richtler, L. P. Bassino, B. Dirsch +1
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-f…
The dark matter halo of NGC 1399 - CDM or MOND?
T. Richtler, Y. Schuberth, M. Hilker +3
Central galaxies in galaxy clusters may be key discriminants in the competition between the cold dark matter (CDM) paradigm and modified Newtonian dynamics (MOND). We investigate t…
Globular Clusters at the Centre of the Fornax Cluster: Tracing Interactions Between Galaxies
L. P. Bassino, T. Richtler, F. R. Faifer +4
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 stu…