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| Query : 2013AJ....145...76T |
2013AJ....145...76T - Astron. J., 145, 76 (2013/March-0)
Kappa Fornaci, a triple radio star.
TOKOVININ A.
Abstract (from CDS):
Bright and nearby (22 pc) solar-type dwarf κ For (HIP 11072) is a triple system. The close pair of M-type dwarfs Ba,Bb with a tentative period of 3.7 days moves around the main component A on a 26 yr orbit. The mass of the "dark companion" Ba+Bb is comparable to the mass of A, causing large motion of the photo-center. The combined spectro-interferometric orbit of AB is derived, and the relative photometry of the components A and B is given. A weak signature of Ba and Bb is detected in the high-resolution spectra by cross-correlation and by variable emission in the Balmer hydrogen lines. The activity of the M dwarfs, manifested by a previously detected radio flare, is likely maintained by synchronization with their tight orbit. We discuss the frequency of similar hidden triple systems, methods of their detection, and the implications for multiple-star statistics.
Abstract Copyright: ∼
Journal keyword(s): binaries: general - stars: individual: HD 14802
CDS comments: In introduction, HR 895 is a misprint for HR 695.
Simbad objects: 8
| Number of rows : 8 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | HD 11397 | PM* | 01 51 40.5281107159 | -16 19 03.566317848 | 9.63 | 9.02 | G6IV/V | 141 | 0 | |||
| 2 | * kap For | SB* | 02 22 32.5904688744 | -23 49 00.479863128 | 5.802 | 5.198 | 4.51 | G0V | 285 | 0 | ||
| 3 | HD 16689 | PM* | 02 39 56.4372697104 | -24 28 52.569474996 | 9.14 | 8.56 | G3V | 31 | 0 | |||
| 4 | * eps For | SB* | 03 01 37.6288785045 | -28 05 29.373792325 | 6.68 | 5.85 | G9:V | 203 | 0 | |||
| 5 | * 94 Cet | PM* | 03 12 46.4365677072 | -01 11 45.955808988 | 5.631 | 5.070 | F8.5V | 478 | 1 | |||
| 6 | * chi Tau | * | 04 22 34.9437170088 | +25 37 45.537575448 | 5.344 | 5.378 | B9Vnn | 111 | 0 | |||
| 7 | NAME Galactic Center | reg | 17 45 39.60213 | -29 00 22.0000 | ~ | 16269 | 0 | |||||
| 8 | NAME IC 2391 Moving Group | MGr | ~ | ~ | ~ | 27 | 0 |
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