2009A&A...504..277L


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.01CET17:33:19

2009A&A...504..277L - Astronomy and Astrophysics, volume 504, 277-289 (2009/9-2)

Adapting Marchal's test of escape to real triple stars.

LI P.J., FU Y.N. and SUN Y.S.

Abstract (from CDS):

For a general N-body system, Marchal constructed an analytical test of escape, which uses only a one-dimensional projected motion state of the system at any given instant. This test is well adapted to identifying real, disintegrating small stellar systems, of which the full motion states are generally unavailable. However, to our knowledge, there has been no practical application of this test until the present-day. In this paper, we aim at adapting the above test to visual triple stars with estimable component masses and known kinematic data on the plane perpendicular to the line-of-sight. As illustrating examples, our goal is to identify disintegrating Hipparcos linear triple systems. The fundamental techniques of analytical geometry were used to adapt the test of escape to practical applications, and the Monte Carlo method used to cope with the unavoidable observational errors, so that the confidence probability of a real triple star disintegrating could be obtained. A practical algorithm was designed to make full use of the two-dimensional kinematic data in testing usual visual triple stars. This algorithm is then applied to 24 Hipparcos linear triple systems with estimable component masses and the disintegration probability given.

Abstract Copyright:

Journal keyword(s): celestial mechanics - instabilities - stellar dynamics - binaries: general - methods: analytical

Simbad objects: 34

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Number of rows : 34

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 BD+14 48 * 00 27 26.2353660903 +15 01 54.009675423   10.67 9.93     K0 6 1
2 HD 3125 ** 00 34 29.7947932521 -04 32 47.529190129   7.71 7.02     G7III 51 0
3 HD 3125C PM* 00 34 30.7190615852 -04 32 33.461033128   9.37 8.65     F9IV 20 0
4 HD 19048 * 03 03 01.2027658410 -26 58 52.820129041   9.77 9.09     G3V 12 0
5 HD 20121 ** 03 12 25.74558 -44 25 10.7932   6.37 5.93     A8V+F3V 88 0
6 HD 23189 PM* 03 48 01.0343330073 +68 40 22.411924782   10.42   8.4   K2V 63 0
7 G 221-24 ** 03 48 01.6922324912 +68 40 38.765916556   12.28 10.81 10.15   M2V+K6V 56 0
8 * 2 Cam ** 04 39 58.0618680524 +53 28 22.465412470       6.70   A8V 92 0
9 HD 33204 EB* 05 09 45.0935047294 +28 01 49.690740243   6.296 5.997   5.69 A7VAm: 151 0
10 GC 6302 ** 05 09 45.47288 +28 02 01.0407   9.307 8.623     G7 42 1
11 HD 35317 ** 05 23 51.32963 -00 51 59.8576   6.62 6.11     F7V+F8V 84 0
12 HD 47787 Ro* 06 39 11.63191 -26 34 18.7546   9.55 9.24 8.84   K1IV+K1IV 28 0
13 * 12 Lyn ** 06 46 14.13019 +59 26 30.0227       6.11   A2.5V 98 0
14 HD 56593 ** 07 17 06.97559 -12 02 02.0966   7.110 6.712     F4V 53 0
15 HD 66509 ** 08 04 23.14280 +12 17 22.5132           K0V 96 0
16 HD 68279 * 08 08 12.9045699131 -61 04 38.078910519   7.73 6.81     G8III 12 0
17 SAO 250121 * 08 08 14.4819560183 -61 04 39.791034894   8.92 8.39     ~ 7 0
18 * zet Cnc ** 08 12 12.72637 +17 38 51.9615           F8V+G0V 170 0
19 * zet01 Cnc ** 08 12 12.72637 +17 38 51.9615           ~ 155 0
20 * a Lup ** 14 37 20.1567290 -46 08 00.381075   6.513 5.431     G8III 40 0
21 HD 128267 * 14 37 20.9244367777 -46 07 42.910578722   8.088 7.594     A 23 1
22 * mu. Lup Be* 15 18 32.02296 -47 52 30.9957 3.82         B8Ve 95 0
23 HD 135748 * 15 18 33.7697058274 -47 52 45.345705913   6.87 6.76     A2/3(V) 20 0
24 HD 138488A ** 15 33 09.514 -24 29 25.50   7.108 6.91 7.71   A7V 39 0
25 HD 144179 ** 16 05 39.16985 -32 51 44.6353           K0V 48 0
26 HD 148492 PM* 16 27 46.54237 +20 53 43.2180   8.87 8.30     G 22 0
27 HD 150170 ** 16 42 56.82529 -60 55 34.4844   9.08 8.73     F0/2V 19 0
28 BD+27 2853 ** 17 37 10.767120 +27 53 47.15700       9.04   K5 77 0
29 HD 179484 ** 19 11 07.89706 +38 46 48.3556           G4V+K0V 76 0
30 * zet Sge ** 19 48 58.660 +19 08 31.35   5.105 5.034 6.62   A3V 150 0
31 HD 186602 ** 19 49 07.30141 -61 48 54.0645   7.75 7.26     F7/8V 40 0
32 BD+10 4385 ** 20 49 23.65050 +11 24 08.4343       9.01   K5 71 0
33 HIP 102784 * 20 49 24.0873153074 +11 24 18.209603285       13.34   ~ 6 0
34 BD+23 4575 ** 22 37 27.08204 +23 56 16.2662   10.65 9.59 8.8   K8 26 0

    Equat.    Gal    SGal    Ecl

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2020.12.01-17:33:19

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