Born: 22 June 1933, in Lackawanna, N.Y., USA, from Romanian-born parents
Passed away: 7 May 1990
Studies:
Case Institute of Technology, Cleveland, Ohio, USA
- B. Sc. in physics (1956)
- M. Sc. in astronomy (1961)
- Ph. D. in astronomy (1965)
Positions:
- staff member at Kitt Peak and Cerro Tololo Observatories
- research associate at Warner and Swasey Observatory
Main achievements:
- very large objective prism spectroscopic surveys;
- studies about the Magellanic Clouds; at one point he published the list containing the star Sanduleak -69?202, destined to become the famous supernova 1987 A; he co-authored a list of H-alpha-emission stars containing the peculiar object still referred to as SS 433;
- extension of the Case-Hamburg Milky Way survey to the southern hemisphere, generating a list of 5000 "Luminous Stars in the Southern Milky Way";
- collaboration in "The Case Low-Dispersion Northern Sky Survey", a search for interesting, mostly faint spectra of stars and galaxies at high galactic latitudes;
- co-discovery of almost half of all the symbiotic stars now known;
- studies about a large number of spectroscopically interesting individual objects: emission-line objects, variable stars, an occasional quasar, and much else;
- lists of important classes of objects, such as planetary nebulae and blue horizontal-branch stars in globular clusters.
