For the purposes of search for new SS 433 type objects, LBV stars and other similar unique stars in the galaxy M33, the authors have carried out an identification and photometry of blue stars on Hα photographs of this galaxy. From 2332 known OB stars it was possible to do the photometry for 1619 stars. On the diagrams Hα flux - V magnitude the authors have isolated 549 emission-line objects, which have Hα excess among other stars of the same V magnitude. 81 Hα emitting stars have been selected from them on the diagrams Hα flux and Hα surface brightness - an object size. It has been found that about 334 selected candidates are extended objects having the properties of compact diffuse or bubble nebulae. A list of isolated objects, their morphological types, sizes and relative Hα fluxes are presented.
Bulletin of the Special Astrophysics Observatory
- Pub Date:
- OB Stars: Photometry;
- OB Stars: Galaxies;
- Galaxies: H Alpha Surveys