J/A+A/594/A55 xi Tau UBV and MOST light curves (Nemravova+, 2016)
xi Tauri: a unique laboratory to study the dynamic interaction in a compact
hierarchical quadruple system.
Nemravova J.A., Harmanec P., Broz M., Vokrouhlicky D., Mourard D.,
Hummel C.A., Cameron C., Matthews J.M., Bolton C.T., Bozic H., Chini R.,
Dembsky T., Engle S., Farrington C., Grunhut J.H., Guenther D.B.,
Guinan E.F., Korcakova D., Koubsky P., Kiek R., Kuschnig R., Mayer P.,
McCook G.P., Moffat A.F.J., Nardetto N., Pra A., Ribeiro J., Rowe J.,
Rucinski S., Skoda P., Slechta M., Tallon-Bosc I., Votruba V., Weiss W.W.,
Wolf M., Zasche P., Zavala R.T.
<Astron. Astrophys. 594, A55 (2016)>
=2016A&A...594A..55N 2016A&A...594A..55N (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Photometry, UBV ; Radial velocities
Keywords: binaries: close - binaries: spectroscopic - binaries: eclipsing -
stars: kinematics and dynamics - stars: fundamental parameters -
supernovae: individual: xi Tauri
Abstract:
Compact hierarchical systems are important because the effects caused
by the dynamical interaction among its members occur ona human
timescale. These interactions play a role in the formation of close
binaries through Kozai cycles with tides. One such system is xi Tauri:
it has three hierarchical orbits:
7.14d (eclipsing components Aa, Ab), 145d (components Aa+Ab, B), and
51yr (components Aa+Ab+B, C).
We aim to obtain physical properties of the system and to study the
dynamical interaction between its components.
Our analysis is based on a large series of spectroscopic photometric
(including space-borne) observations and long-baseline optical and
infrared spectro-interferometric observations. We used two approaches
to infer the system properties: a set of observation-specific models,
where all components have elliptical trajectories, and an N-body
model, which computes the trajectory of each component by integrating
Newton's equations of motion.
Description:
We present reduced observations, that were used in study of the
quadruple hierarchical binary xi Tauri. The observational material
consists of radial-velocity measurements (tabled1.dat), photometric
measurements in the MOST filter (tabled2.dat), and Johnson's U
(tabled3.dat), B (tabled4.dat), and V (tabled5.dat), and
spectro-interferometric measurements represented by squared visibility
moduli (tabled6.dat), and closure phases (tabled7.dat).
The∼description of the reductions is given in Appendices A (the
spectroscopy), B (the photometry), and C (the spectro-interferometry).
The procedure of radial-velocity measuring is described in Sect. 3.1.
Headers of Tables D.1-D.7 published electronically are also given in
Appendix D.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tabled1.dat 37 675 Radial velocity measurements
tabled2.dat 32 18510 Photometry acquired with the satellite MOST
tabled3.dat 32 598 Photometry acquired in the Johnson U filter
tabled4.dat 32 610 Photometry acquired in the Johnson B filter
tabled5.dat 32 613 Photometry acquired in the Johnson V filter
tabled6.dat 77 18276 Squared visibility moduli
tabled7.dat 112 4856 Closure phases
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tabled1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.6 d RJD Reduced Julian date (RJD=HJD-2400000)
14- 22 F9.4 km/s RV Radial velocity
26- 32 F7.4 km/s e_RV Uncertainty of the radial velocity
36- 40 A5 -- Comp [Aa Ab B] Label of a component (1)
--------------------------------------------------------------------------------
Note (1): Component labels as follows:
Aa = primary of the eclipsing binary
Ab = secondary of the eclipsing binary
B = brightest member of the xi Tau system
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tabled2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.6 d RJD Reduced Julian date (RJD=HJD-2400000)
15- 22 F8.6 mag MO All-sky magnitude measured by MOST satellite
25- 32 F8.6 mag e_MO Uncertainty of the magnitude
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tabled3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.6 d RJD Reduced Julian date (RJD=HJD-2400000)
15- 20 F6.4 mag Umag Magnitude in the Johnson U filter
23- 28 F6.4 mag e_Umag Uncertainty of the magnitude
32 I1 --- src [1/3] Observation source (1)
--------------------------------------------------------------------------------
Note (1): The notation of data sources is the following:
1 = Hvar Observatory
2 = South African Astronomical Observatory
3 = Four College Aumtomatic Photometric Telescope, USA
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tabled4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.6 d RJD Reduced Julian date (RJD=HJD-2400000)
15- 20 F6.4 mag Bmag Magnitude in the Johnson B filter
23- 28 F6.4 mag e_Bmag Uncertainty of the magnitude
32 I1 --- src [1/3] Observation source (1)
--------------------------------------------------------------------------------
Note (1): The notation of data sources is the following:
1 = Hvar Observatory
2 = South African Astronomical Observatory
3 = Four College Aumtomatic Photometric Telescope, USA
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tabled5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.6 d RJD Reduced Julian date (RJD=HJD-2400000)
15- 20 F6.4 mag Vmag Magnitude in the Johnson V filter
23- 28 F6.4 mag e_Vmag Uncertainty of the magnitude
29- 32 I4 -- src [1/3] Observation source (1)
--------------------------------------------------------------------------------
Note (1): The notation of data sources is the following:
1 = Hvar Observatory
2 = South African Astronomical Observatory
3 = Four College Aumtomatic Photometric Telescope, USA
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tabled6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.6 d RJD Reduced Julian date (RJD=HJD-2400000)
14- 28 E15.9 m u Projected baseline East-West direction
30- 44 E15.9 m v Projected baseline North-South direction
46- 60 E15.9 m ew Effective wavelength
61- 67 F7.4 --- vis2 Squared visibility moduli
69- 75 F7.4 --- e_vis2 Uncertainty of the visibility
77 I1 --- src [1/4] Observation source (1)
--------------------------------------------------------------------------------
Note (1): The notation of data sources is the following:
1 = CHARA/VEGA
2 = MARKIII
3 = NPOI
4 = AMBER
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tabled7.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.6 d RJD Reduced Julian date (RJD=HJD-2400000)
14- 28 E15.9 m u1 1st projected baseline East-West direction
30- 44 E15.9 m v1 1st projected baseline North-South direction
46- 60 E15.9 m u2 2nd projected baseline East-West direction
62- 76 E15.9 m v2 2nd projected baseline North-South direction
78- 92 E15.9 m ew Effective wavelength
93-101 F9.4 deg phi Closure phase
103-110 F8.4 deg e_phi Uncertainty of the closure phase
112 I1 --- src Observation source (1)
--------------------------------------------------------------------------------
Note (1): The notation of data source is the following:
1 = CHARA/VEGA
2 = MARKIII
3 = NPOI
4 = AMBER
--------------------------------------------------------------------------------
Acknowledgements:
Jana Alexandra Nemravova, janicka.ari(at)seznam.cz
(End) Patricia Vannier [CDS] 31-May-2016