Binarity of the Red-Rectangle and other Extremely Fe-poor (Post?-)AGB Stars

Details Binarity of the Red-Rectangle and other Extremely Fe-poor (Post?-)AGB Stars Binarity of the Red-Rectangle and other Extremely Fe-poor (Post?-)AGB Stars

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.224..581v&link_type=abstract

Astrophysics and Space Science, Volume 224, Issue 1-2, pp. 581-582

Astronomy and Astrophysics

Astrophysics

3

Abundances, Stars: Post-Agb, Individual Objects: Hr 4049, Hd 52961, Hd 44179 (Red Rectangle), Bd+39&Deg, 4926

Scientific paper

We present radial velocity measurements proving the binary nature of all the known extremely Fe-deficient Post-ABG stars including HD 44179, the central star of the well known but poorly understood Red-Rectangle nebula. With the observed orbital parameters, it is more likely that the stars represent a particular stage in binary evolution, rather than a typical post-AGB evolutionary stage.

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