527 citations · 8.5k across the 128 of their papers we have counts for
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The Stromlo Missing Satellites Survey
Helmut Jerjen
The Stromlo Missing Satellites (SMS) program is a critical endeavor to investigate whether cold dark matter cosmology is flawed in its ability to describe the matter distribution o…
The Environmental Influence on the Evolution of Local Galaxies
A. Bouchard, G. S. Da Costa, H. Jerjen
The results of an Halpha photometric survey of 30 dwarf galaxies of various morphologies in the Centaurus A and Sculptor groups are presented. Of these 30, emission was detected in…
Deep Near-IR Surface Photometry of 57 Galaxies in the Local Sphere of Influence
Emma Kirby, Helmut Jerjen, Stuart Ryder +1
We present H-band surface photometry of 57 galaxies drawn from the Local Sphere of Influence (LSI) with distances of less than 10 Mpc from the Milky Way. The images with a typical…
The Invisibles: A Detection Algorithm to Trace the Faintest Milky Way Satellites
Shane Walsh, Beth Willman, Helmut Jerjen
[Abridged] A specialized data mining algorithm has been developed using wide-field photometry catalogues, enabling systematic and efficient searches for resolved, extremely low sur…
Near-field cosmology with the VLT
Steffen Mieske, Helmut Jerjen
With the arrival of wide-field imagers on medium-size telescopes (e.g. SkyMapper, Pan-STARRS) and the future co-existence of LSST with the E-ELT, it is worthwhile to evaluate the s…
Bootes II ReBooted: An MMT/MegaCam Study of An Ultra-Faint Milky Way Satellite
S. M. Walsh, B. Willman, D. Sand +4
[abridged] We present MMT/Megacam imaging in Sloan and of the extremely low luminosity Boötes II Milky Way companion. We use a bootstrap approach to perform robust measurem…