SIMBAD references

2011MNRAS.416..391F - Mon. Not. R. Astron. Soc., 416, 391-392 (2011/September-1)

Discovery of the nearby F6V star HR 3220 as a field blue straggler.

FUHRMANN K., CHINI R., HOFFMEISTER V.H. and STAHL O.

Abstract (from CDS):

We report the discovery of the nearby single-lined and metal-poor F6V star HR 3220 as a field blue straggler from a basic inconsistency of the τ ≃ 3 Gyr evolutionary age compared to its low iron-to-magnesium abundance ratio which implies that HR 3220 must be instead as old as τ ≃ 10 Gyr. Our finding is corroborated by the observational constraints of the spectroscopic and astrometric P= 899 d orbit, leading to a secondary mass MB ≃ 0.42+0.09_- 0.05M☉_ that matches the Rappaport et al. period-white dwarf mass relation and the case of a mass transfer system.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): blue stragglers - stars: fundamental parameters - stars: individual: HR 3220 - stars: solar-type - white dwarfs

Simbad objects: 7

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