278 citations · 1.5k across the 46 of their papers we have counts for
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Challenges in focal plane and telescope calibration for High-Precision Space Astrometry
F. Malbet, M. Lizzana, F. Pancher +10
With sub-microarcsecond angular accuracy, the \theia telescope will be capable of revealing the architectures of nearby exoplanetary systems down to the mass of Earth. This researc…
HSTPROMO Internal Proper Motion Kinematics of Dwarf Spheroidal Galaxies: I. Velocity Anisotropy and Dark Matter Cusp Slope of Draco
Eduardo Vitral, Roeland P. van der Marel, Sangmo Tony Sohn +8
We analyze four epochs of HST imaging over 18 years for the Draco dwarf spheroidal galaxy. We measure precise proper motions (PMs) for hundreds of stars and combine these with exis…
Are compact groups of galaxies special?
Matthieu Tricottet, Gary A. Mamon, Eugenia Díaz-Giménez
It is often believed that isolated compact groups (CGs) of galaxies are special systems, but only a few studies have compared CGs to regular groups. We study the global properties…
What drives the corpulence of galaxies? I. The formation of central compact dwarf galaxies in TNG50
Abhner P. De Almeida, Gary A. Mamon, Avishai Dekel +1
Nearby dwarf galaxies display a variety of effective radii (sizes) at a given stellar mass, suggesting different evolution scenarios according to their final "stellar" size. The TN…
AXES-2MRS: A new all-sky catalogue of extended X-ray galaxy groups
H. Khalil, A. Finoguenov, E. Tempel +1
We present a new all-sky catalogue of X-ray detected groups (AXES-2MRS), based on the identification of large X-ray sources found in the ROSAT All-Sky Survey (RASS) with the Two Mi…
AXES-SDSS: comparison of SDSS galaxy groups with all-sky X-ray extended sources
S. Damsted, A. Finoguenov, H. Lietzen +8
We revisit the picture of X-ray emission of groups through the study of systematic differences in the optical properties of groups with and without X-ray emission and study the eff…