1k citations · 17.6k across the 313 of their papers we have counts for
4 papers · 1 filter
Spectroscopy of blue supergiants in NGC 300
Fabio Bresolin, Wolfgang Gieren, Rolf-Peter Kudritzki +2
We have obtained VLT low-resolution (~5 A) multi-object spectroscopy in the 4,000-5,000 A spectral range of about 70 blue supergiant candidates in the Sculptor Group spiral galaxy…
Optical Gravitational Lensing Experiment. OGLE-1999-BUL-32: the Longest Ever Microlensing Event -- Evidence for a Stellar Mass Black Hole?
Shude Mao, Martin C. Smith, P. Wozniak +5
We describe the discovery of the longest microlensing event ever observed, OGLE-1999-BUL-32, also independently identified by the MACHO collaboration as MACHO-99-BLG-22. This uniqu…
A Catalog of OB Associations in the spiral galaxy NGC 300
G. Pietrzynski, W. Gieren, P. Fouque +1
We present results of a search for OB associations in NGC 300. Using an automatic and objective method (PLC technique) 117 objects were found. Statistical tests indicate that our s…
Optical Gravitational Lensing Experiment. OGLE 2000-BUL-43: A Spectacular Ongoing Parallax Microlensing Event. Difference Image Analysis
I. Soszynski, K. Zebrun, P. R. Wozniak +7
We present the photometry and theoretical models for a Galactic bulge microlensing event OGLE-2000-BUL-43. The event is very bright with I=13.54 mag, and has a very long time scale…