2025AJ....170..143T

Query : 2025AJ....170..143T

2025AJ....170..143T - Astron. J., 170, 143 (2025/September-0)

Spectroscopic Orbits of Subsystems in Multiple Stars. XI.

TOKOVININ A.

Abstract (from CDS):

Adding to the large radial velocity survey of nearby solar-type stars (summary in Tokovinin, 2023a), spectroscopic orbits are determined for four hierarchical systems: HIP 49442 (inner and outer periods of 164.55 days and 34 yr, respectively), HIP 55691 (2.4 and 415 yr), HIP 61465 (86.8 days), and HIP 78662C (0.82 day). Each system is discussed individually. Seven Gaia orbits of low-mass dwarfs, each with two additional resolved (interferometric and wide) companions, i.e., potential quadruples, are tested by monitoring radial velocities: five orbits are confirmed and two are refuted. Five of these systems are quadruples of 3+1 hierarchy, one is quintuple, and one is triple. Strengths and limitations of the Gaia data on multiple systems and the need of complementary observations are highlighted.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Multiple stars - Binary stars - Spectroscopic binary stars - Visual binary stars

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR. // All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 16

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Number of rows : 16
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 CD-53 862 * 04 09 41.1368721576 -52 55 59.900924568   10.72 9.90     ~ 7 0
2 UCAC4 463-038756 SB* 07 54 18.0322802833 +02 31 42.900301955   13.275 12.078 11.615   ~ 2 0
3 IC 2391 OpC 08 41 17.5 -53 03 00           ~ 871 0
4 LP 902-100 SB* 09 33 35.9111180717 -27 52 22.936529477     12.575 12.220   ~ 16 0
5 HD 88948A PM* 10 05 38.6362990256 -84 05 20.545528646   8.20 7.61     ~ 4 0
6 HD 88948 ** 10 05 38.69231 -84 05 20.1410           F8V 29 0
7 HD 99279 ** 11 24 40.3 -61 38 51           ~ 82 0
8 HD 99279A PM* 11 24 40.3862287109 -61 38 51.311865498   8.769 7.54 7.62 8.86 K5-V 83 0
9 HD 104532 SB* 12 02 13.5686151984 -48 43 29.862746040   9.90 9.26     G3/5V 29 0
10 BD-11 3331 PM* 12 35 43.3815256512 -12 01 02.687659032   8.88 8.27     ~ 20 0
11 HD 109556 PM* 12 35 43.6708327512 -12 01 29.852251716   8.37 7.88     G0 21 0
12 TYC 8304-794-1 SB* 15 39 43.3927833552 -49 55 47.255045448   12.50 11.88     ~ 4 0
13 * iot01 Nor C PM* 16 03 30.8653424091 -57 46 35.240356594         8.84 ~ 15 0
14 * iot01 Nor ** 16 03 32.08942 -57 46 30.2641   4.89 4.67     A5IVs 99 0
15 CD-73 1491 SB* 20 14 41.2312198416 -72 52 18.923489580   10.03 9.41     ~ 8 0
16 UCAC4 188-209760 SB* 21 46 02.6829725672 -52 33 24.354573861   13.202 11.986 11.710   ~ 2 0

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