135 citations · 696 across the 17 of their papers we have counts for
7 papers · 1 filter
The Delegate Survey: KOALA/AAOmega-IFU spectroscopy of three nearby dwarf galaxies
Kyungdo Ko, Helmut Jerjen, Sarah M. Sweet +6
Assessing the cosmological typicality of the Local Group is crucial for establishing whether its dwarf galaxy population is representative. To this end, the Delegate Survey targets…
Detectability of Satellite Planes in Mock Observations of Isolated L* Galaxies
Ethan Crosby, Marcel S. Pawlowski, Oliver Müller +1
The existence and prevalence of planar, co-rotating distributions of satellite galaxies around L* host galaxies in the local universe remains a subject of ongoing debate. Despite n…
On the origin of the Hercules group: II. the Trojan quasi-periodic identity on the orbital level
Yusen Li, Kenneth Freeman, Helmut Jerjen
The Hercules kinematic group is a stellar anomaly structure observed in the solar neighbourhood (SNd). In the previous paper, we analysed chemical signatures and related the origin…
On the origin of the Hercules group: I. chemical signatures indicating the outer bar origin
Yusen Li, Kenneth Freeman, Helmut Jerjen +3
The Hercules kinematic group is a kinematic anomaly of stars observed in the solar neighbourhood (SNd). In this series of papers, we present a comprehensive study of this structure…
New dwarf galaxy candidates in the sphere of influence of the Local Volume spiral galaxy NGC2683
E. Crosby, H. Jerjen, O. Müller +3
We present initial results of a survey of host galaxies environments in the Local Volume (Mpc) searching for satellite dwarf galaxy candidates using the wide-field…
Tracing the outer halo in a giant elliptical to 25 Reff
M. Rejkuba, W. E. Harris, L. Greggio +3
We have used the ACS and WFC3 cameras on board HST to resolve stars in the halo of the nearest giant elliptical (gE) galaxy NGC 5128 out to a projected distance of 140 kpc (25 effe…
Scl-dE1 GC1: An Extended Globular Cluster in a Low-Luminosity Dwarf Elliptical Galaxy
G. S. Da Costa, E. K. Grebel, H. Jerjen +2
We report the discovery from Hubble Space Telescope ACS images of an extended globular cluster, denoted by Scl-dE1 GC1, in the Sculptor Group dwarf Elliptical galaxy Scl-dE1 (Sc22)…