589 citations · 850 across the 5 of their papers we have counts for
5 papers
Search for Extratidal Features Around 17 Globular Clusters in the Sloan Digital Sky Survey
Katrin Jordi, Eva K. Grebel
The dynamical evolution of a single globular cluster and also of the entire Galactic globular cluster system has been studied theoretically in detail. In particular, simulations sh…
Testing Fundamental Physics with Distant Star Clusters: Analysis of Observational Data on Palomar 14
K. Jordi, E. K. Grebel, M. Hilker +6
We use the distant outer halo globular cluster Palomar 14 as a test case for classical vs. modified Newtonian dynamics (MOND). Previous theoretical calculations have shown that the…
Testing fundamental physics with distant star clusters: theoretical models for pressure-supported stellar systems
Hosein Haghi, Holger Baumgardt, Pavel Kroupa +3
We investigate the mean velocity dispersion and the velocity dispersion profile of stellar systems in MOND, using the N-body code N-MODY, which is a particle-mesh based code with a…
A Wide-Field View of Leo II -- A Structural Analysis Using the SDSS
Matthew G. Coleman, Katrin Jordi, Hans-Walter Rix +2
Using SDSS I data, we have analysed the stellar distribution of the Leo II dwarf spheroidal galaxy (distance of 233 kpc) to search for evidence of tidal deformation. The existing S…
Empirical Color Transformations Between SDSS Photometry and Other Photometric Systems
Katrin Jordi, Eva K. Grebel, Karin Ammon
We present empirical color transformations between the Sloan Digital Sky Survey (SDSS) ugriz photometry and Johnson-Cousins UBVRI system and Becker's RGU system, respectively. Owin…