The Post-Red Supergiant IRC +10420

Details The Post-Red Supergiant IRC +10420 The Post-Red Supergiant IRC +10420

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..355..181o&link_type=abstract

Stars with the B[e] Phenomenon. ASP Conference Series, Vol. 355, Proceedings of the Conference Held 10-16 July, 2005, at the Isl

Astronomy and Astrophysics

Astronomy

1

Scientific paper

In this contribution we review the properties of the post-red supergiant IRC +10420. Its A-type supergiant spectral classification, high wind outflow velocities, strong infrared excess combined with its abundances typical of massive evolved stars strongly indicate that IRC +10420 is a post-Red Supergiant. Indeed, the object can be classed as a genuine evolved ``A[e]'' supergiant, and as such may provide important clues to the understanding of the B[e] phenomenon. We give an update on the photometric evolution of the star and present new spectropolarimetric data. These imply that the Hα line forming region deviates from spherical symmetry.

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