45 citations · 49 across the 6 of their papers we have counts for
3 papers · 2 filters
The stars near the centre of supergiant shell LMC4: Further constraints on triggering scenarios
Jochen M. Braun, Klaas S. de Boer, Martin Altmann
The huge supergiant shell (SGS) LMC4, next to the giant HII region 30 Doradus the second most impressive feature of the Large Magellanic Cloud (LMC), has been the subject of many s…
Photometric and kinematic studies of open star clusters. II. NGC 1960 (M 36) and NGC 2194
Joerg Sanner, Martin Altmann, Jens Brunzendorf +1
We present CCD photometry and proper motion studies of the two open star clusters NGC 1960 (M 36) and NGC 2194. Fitting isochrones to the colour magnitude diagrams, for NGC 1960 we…
Long-term photometry of the Wolf-Rayet stars WR 137, WR 140, WR 148, and WR 153
Kyril P. Panov, Martin Altmann, Wilhelm Seggewiss
In 1991, a long term UBV-photometry campaign of four Wolf-Rayet stars was started using the 60 cm telescope of the National Astronomical Observatory Rozhen, Bulgaria. Here we repor…