The Galactic Center is an excellent laboratory for studying phenomena and physical
processes that may be occurring in many other galactic nuclei. The center of our Milky Way …

The goal in writing this paper is five fold:(1) to summarize the scientific achievements in the
20th century on S Dor variables (or LBVs);(2) to present an inventory of these variables in …

We analyse IRAS and COBE DIRBE data at wavelengths between 2.2 and 240 of the central
500 pc of the Galaxy and derive the large-scale distribution of stars and interstellar matter in …

We analyze deep near-IR adaptive optics imaging (taken with NAOS/CONICA on the Very
Large Telescope at the European Southern Observatory, Chile), as well as new proper …

In large spheroidal stellar systems, such as elliptical galaxies, one invariably finds a 106–
109 M⊙ supermassive black hole at their centre. In contrast, within dwarf elliptical galaxies …

Context. Although the Milky Way nuclear star cluster (MWNSC) was discovered more than
four decades ago, several of its key properties have not been determined unambiguously up …

Context. Nuclear star clusters (NSCs) are located at the photometric and dynamical centers
of the majority of galaxies. They are among the densest star clusters in the Universe. The …

THE synthesis of microporous materials such as aluminosilicates and aluminophosphates,
which are widely exploited as solid acid catalysts, ion exchangers and in gas separation, is …

The subject of this review is the central 100 parsecs of our Galaxy, with a strong focus on the
central few parsecs. Observations of the electromagnetic spectrum over 13 orders of …

We present a new model for the gas dynamics in the galactic disc inside the orbit of the Sun.
Quasi-equilibrium flow solutions are determined in the gravitational potential of the …