SIMBAD references

1996A&A...314..491W - Astronomy and Astrophysics, volume 314, 491-498 (1996/10-2)

An analysis of the Ap spectroscopic binary HD 59435.


Abstract (from CDS):

HD 59435 is a double-lined spectroscopic binary (SB2), with slowly rotating components of very similar luminosity. It was studied through high-resolution spectroscopy, photometry and CORAVEL observations. Orbital elements are presented. The orbital period is 1387 days. The line of sight lies close to the orbital plane, but no eclipses have been observed so far. The primary is an evolved G8 or K0 star, which has likely just descended the Red Giant Branch. The secondary is a cool Ap star close to the end of its main-sequence life. It shows lines resolved into magnetically split components, from which its mean magnetic field modulus can be diagnosed. The field varies with a remarkably large relative amplitude, over a rotation period which is at least of the order of 3 years.

Abstract Copyright:

Journal keyword(s): stars: chemically peculiar - stars: individual: HD 59435 - stars: magnetic fields - stars: binaries: spectroscopic - stars: evolution

VizieR on-line data: <Available at CDS (J/A+A/314/491): table1 table2 table6 tables.tex>

Simbad objects: 32

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