The OGLE-III Catalog of Variable Stars

V. R Coronae Borealis Stars in the Large Magellanic Cloud

The fifth part of the OGLE-III Catalog of Variable Stars consist of 23 R Coronae Borealis (RCB) stars in the Large Magellanic Cloud (LMC). 17 of these objects have been spectroscopically confirmed by previous studies, while 6 stars are new candidates for RCB variables. We publish the VI multi-epoch OGLE photometry for all objects.

Candidates for RCB stars

We use the sample of carbon-rich long-period variables released in the previous part of this catalog to select objects with severe drops in luminosity, i.e. with the DY-Per-like light curves. We detect at least 600 candidates for DY Per stars, mostly among dust enshrouded giants. We notice that our candidate DY Per stars form a continuity with other carbon-rich long-period variables, so it seems that DY Per stars do not constitute a separate group of variable stars.

The OGLE-III Catalog of Long-Period Variables in the LMC is available from the OGLE Internet archive. See README file there for details.

PLEASE cite the following paper when using the data or referring to these OGLE results:
Soszyński et al., 2009, Acta Astron., 59, 335 (astro-ph/0912.2097)

Any comments about the data and the form of their presentation are welcome as they can improve the future releases of catalogs of variable stars detected by the OGLE collaboration. Send your messages to this address.