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| Query : 2023RAA....23e5021K |
2023RAA....23e5021K - Research in Astron. and astroph., 23, part no 5, 5021 (2023/May-0)
Searching For Wide Binary Stars with Non-coeval Components in the Southern Sky.
KNIAZEV A. and MALKOV O.
Abstract (from CDS):
We have completed our observational program to search for wide binary systems with non-coeval components in the southern sky and report our results here. The final set of four systems was spectroscopically investigated in this paper. No binary systems with components of different ages were found among them. Taking into account our previous studies, we estimate the fraction of such binaries (i.e., binaries formed, presumably, by capture) to be not higher than 0.06%. The study will be continued on the northern sky.
Abstract Copyright: © 2023. National Astronomical Observatories
Journal keyword(s): (stars:) binaries: general - (stars:) binaries: visual - stars: formation
Simbad objects: 11
| Number of rows : 11 |
| 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 | V* V966 Per | EB* | 01 36 42.4507958808 | +54 15 21.509003376 | 13.16 | 13.04 | 13.28 | 13.02 | ~ | 5 | 0 | |
| 2 | HD 20121 | ** | 03 12 25.74558 | -44 25 10.7932 | 6.37 | 5.93 | A8V+F3V | 102 | 0 | |||
| 3 | HD 20121B | PM* | 03 12 25.754183 | -44 25 11.55262 | 7.93 | 7.36 | F3V | 6 | 0 | |||
| 4 | HD 20121A | PM* | 03 12 25.754433 | -44 25 10.84840 | 6.82 | 6.42 | A8V | 13 | 0 | |||
| 5 | * 47 Tau B | * | 04 13 56.357877 | +09 15 50.95773 | 7.44 | 7.30 | A7V: | 1 | 0 | |||
| 6 | * 47 Tau | RG* | 04 13 56.38482 | +09 15 49.7729 | G5III+A7V: | 91 | 0 | |||||
| 7 | * 47 Tau A | * | 04 13 56.3854450608 | +09 15 49.767350436 | 5.84 | 4.95 | G3IIIFe-0.5 | 2 | 0 | |||
| 8 | V* RR Lyn | SB* | 06 26 25.8366305040 | +56 17 06.346261104 | 5.76 | 5.54 | kA3hA7VmF2 | 221 | 0 | |||
| 9 | * tet Vir | ** | 13 09 56.9889385680 | -05 32 20.414634792 | 4.385 | 4.397 | A1IVs | 277 | 0 | |||
| 10 | HD 156331 | ** | 17 19 30.5140559064 | -50 03 49.546841760 | 6.658 | 6.267 | F3IV/V | 44 | 0 | |||
| 11 | V* V505 Sgr | SB* | 19 53 06.3860220576 | -14 36 11.488005972 | 6.62 | 6.48 | A2IV-V | 213 | 0 |
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