2001A&A...374..227T

Query : 2001A&A...374..227T

2001A&A...374..227T - Astronomy and Astrophysics, volume 374227-234 (2001/7-4)

New spectroscopic components in multiple systems. IV.

TOKOVININ A.A. and GORYNYA N.A.

Abstract (from CDS):

New close sub-systems are reported and studied in eight visual multiple systems. Elements of one double-lined and eight single-lined spectroscopic orbits are given. Magnitudes, colors, spectral types and masses of individual components are estimated by combining all available data. The visual secondary component of the young binary HD 27638 is a double-lined pair of G-type dwarfs on a 17-day orbit with an unseen but massive (>1.2M☉) spectroscopic tertiary on an 8-year orbit. The invisible secondary of HD 28271A is also massive, but it is not seen, probably because of a high luminosity of the primary - an F7 star with fast axial rotation and an active chromosphere which evolves off the Main Sequence. Two additional companions are found in the visual triple system HD 179484.

Abstract Copyright: ∼

Journal keyword(s): binaries: spectroscopic - binaries: visual

VizieR on-line data: <Available at CDS (J/A+A/374/227): table1.dat table4.dat>

Simbad objects: 21

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Number of rows : 21
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 123B SB* 00 06 15.7105701720 +58 26 13.645667976   8.29 7.32     G8V 31 0
2 HD 123A PM* 00 06 15.8138660328 +58 26 12.107266800   7.12 6.42     G3V 40 0
3 HD 123 ** 00 06 15.81412 +58 26 12.2207       7.01   G3V+G8V 194 0
4 HD 22468B SB* 03 36 46.8440958816 +00 35 15.932894136   10.11 8.90     K4 32 0
5 HD 22468 RS* 03 36 47.2904292073 +00 35 15.943692002 7.09 6.79 5.90     K2:Vnk 1206 0
6 * chi Tau * 04 22 34.9437170088 +25 37 45.537575448   5.344 5.378     B9Vnn 111 0
7 * chi Tau B SB* 04 22 35.5525912128 +25 38 03.144964416   9.08 8.47     F8V 23 0
8 HD 28271 SB* 04 28 51.9945026972 +30 21 41.580029004   6.898 6.383     F7V 73 0
9 HD 28271B * 04 28 52.6568152704 +30 21 53.400246732   8.60 8.17     F5/6IV 26 0
10 * 88 Tau B SB* 04 35 35.1736115064 +10 10 13.668691440   8.31 7.80     ~ 27 0
11 * 88 Tau SB* 04 35 39.2662111032 +10 09 38.711644992   4.412 4.250   4.06 kA4hA6mA7 220 0
12 HD 139460 * 15 38 39.9578142720 -08 47 40.995137688   7.03 6.50     F7V 66 0
13 HD 139461 SB* 15 38 40.0605002201 -08 47 29.205996075   6.87 6.38     F6.5V 75 0
14 HD 169816B SB* 18 23 44.9532505824 +51 38 54.550683528   10.18 9.34     ~ 6 0
15 HD 169816 ** 18 23 45.06958 +51 38 56.8958   9.1 8.0     G5 29 0
16 HD 169816A PM* 18 23 45.0725391264 +51 38 56.887553004   10.01 9.23     G5 5 0
17 TYC 3538-1861-1 * 18 23 52.9747410600 +51 38 04.484349924   10.83 10.26     ~ 3 0
18 HD 179484A PM* 19 11 07.8958675966 +38 46 48.365773267   8.99 8.31     G5V 100 0
19 HD 179484B PM* 19 11 08.030373 +38 46 52.70225   9.42 8.55     ~ 9 0
20 NAME HD 179484BC ** 19 11 08.07984 +38 46 52.7484       8.71   G7V 66 0
21 HD 179484C SB* 19 11 08.087986 +38 46 52.72697   10.18 9.30     ~ 5 0

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