1998A&AS..130..223N


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.26CET08:04:48

1998A&AS..130..223N - Astron. Astrophys., Suppl. Ser., 130, 223-232 (1998/June-1)

Multiplicity among peculiar A stars. I. The Ap stars HD 8441 and HD 137909, and the Am stars HD 43478 and HD 96391.

NORTH P., CARQUILLAT J.-M., GINESTET N., CARRIER F. and UDRY S.

Abstract (from CDS):

We present the first results of a radial-velocity survey of cool Ap and Am stars. HD 8441 is not only a double system with P=106.357 days, but is a triple one, the third companion having an orbital period larger than 5000 days. Improved orbital elements are given for the classical Ap star HD 137909=β CrB by combining our radial velocities with published ones. We yield new orbital elements of the two Am, SB2 binaries HD 43478 and HD 96391. Good estimates of the individual masses of the components of HD 43478 can be given thanks to the eclipses of this system, for which an approximate photometric solution is also proposed.

Abstract Copyright:

Journal keyword(s): stars: spectroscopic binaries - stars: eclipsing binaries - stars: individual: HD 8441, HD 43478, HD 93961, HD 137909

VizieR on-line data: <Available at CDS (J/A+AS/130/223): table6 table7 table8 table9 table10 table11 table12>

Errata: Erratum vol. 135, p. 585 (1999)

CDS comments: Misprint in the tittle: HD 93961 is studied, not HD 96391

Simbad objects: 5

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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* HN And a2* 01 24 18.6762637253 +43 08 31.629302597   6.704 6.676     A4VpSrSi 131 0
2 V* V406 Aur Al* 06 17 51.5101820243 +32 30 16.550619420   7.92 7.48     A3 28 0
3 HD 93961 * 10 51 27.7961916386 +42 15 01.768248390   9.83 8.79     K0 6 0
4 HD 96391 * 11 08 21.8223648376 +71 57 32.335645206 7.530 7.440 7.090     F0 27 0
5 * bet CrB a2* 15 27 49.7315305 +29 06 20.522375 4.08 3.97 3.68 3.50 3.45 F2VpSrCrEuSi 651 0

    Equat.    Gal    SGal    Ecl

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