The title given to this article is incorrect due to technical limitations. The correct title is Bohdan Paczyński.

Bohdan Paczyński (born 8 February Polish astronomer, a leading scientist in theory of the evolution of stars.

He was born in Wilno (today Vilnius, Lithuania). He was educated at the Warsaw University, and after his initial career in Poland he moved to the US in 1981. He is a professor of Astrophysics at Princeton University.

His new methods of discovering cosmic objects and measuring their mass by using gravitational lenses gained him international recognition, and he is acknowledged for coining the term microlensing. He was also an early proponent of the idea that gamma_ray bursts are at cosmological distances.

He won the Henry Draper Medal in 1997, the Gold Medal of the Royal Astronomical Society in 1999 and the Bruce Medal in 2002.

His research concentrates on:

• gravitational lensing and gravitational microlensing
• variable stars
• gamma-ray bursts
• galactic structure

External links

• Bohdan Paczynski's web page (http://www.astro.princeton.edu/~bp/)