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12 papers · 2 filters
Observations of the transiting planet TrES-2 with the AIU Jena telescope in Großschwabhausen
St. Raetz, M. Mugrauer, T. O. B. Schmidt +9
We have started high precision photometric monitoring observations at the AIU Jena observatory in Grossschwabhausen near Jena in fall 2006. We used a 25 cm Cassegrain telescope equ…
Globular Cluster Systems in Nearby Dwarf Galaxies: I. HST/ACS Observations and Dynamical Properties of Globular Clusters at Low Environmental Density
Iskren Y. Georgiev, Thomas H. Puzia, Michael Hilker +1
We investigate the old globular cluster (GC) population of 68 faint (Mv>-16 mag) dwarf galaxies located in the halo regions of nearby (<12 Mpc) loose galaxy groups and in the field…
Trumpler 20 - an old and rich open cluster
I. Platais, C. Melo, J. P. Fulbright +4
We show that the open cluster Trumpler 20, contrary to the earlier findings, is actually an old Galactic open cluster. New CCD photometry and high-resolution spectroscopy are used…
Detection and extraction of signals from the epoch of reionization using higher order one-point statistics
Geraint J. A. Harker, Saleem Zaroubi, Rajat M. Thomas +13
Detecting redshifted 21cm emission from neutral hydrogen in the early Universe promises to give direct constraints on the epoch of reionization (EoR). It will, though, be very chal…
Low-mass X-ray binaries in the bulge of the Milky Way
M. Revnivtsev, A. Lutovinov, E. Churazov +4
We study the population of low-mass X-ray binaries (LMXBs) in the Galactic bulge using the deep survey of this region by the IBIS telescope aboard the INTEGRAL observatory. Thanks…
On the Dynamics of Proto-Neutron Star Winds and r-Process Nucleosynthesis
I. V. Panov, H. -Th. Janka
We study here the formation of heavy r-process nuclei in the high-entropy environment of rapidly expanding neutrino-driven winds from compact objects. In particular, we explore the…