Southern Pleiades - A Story of the Quintuplet Star Cluster

Details Southern Pleiades - A Story of the Quintuplet Star Cluster Southern Pleiades - A Story of the Quintuplet Star Cluster

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008asthe.101..325o&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 101, No. 6, p. 325 - 333 (2008)

Astronomy and Astrophysics

Astronomy

Southern Pleiades, Theta Carinae Cluster

Scientific paper

It was first recognized as a single object in the 2 micron map of the Galactic Center region by Becklin and Neugebauer in 1974. In the infrared polarimetric survey of the Galactic central region in 1978, it was resolved into two twin sources with completely identical polarizations and spectra. Intrigued with the similarities and singularities, the author continued observations, and found it to be resolved to triplets and quadruplets and finally quintuplets as the instrument resolution raised. Its configuration looks very much like the Pleiades cluster and hence can be dubbed as Southern Pleiades. They have been found to be surrounded with many extremely massive young stars as W-R stars and O-stars, composing a super star cluster. But the quintuplet themselves have been left unidentified as extraordinary sources for a long time. Finally, just recently, they have been resolved to pinwheel nebulae with Archemedian dust spirals.

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