J/A+A/490/737 Radial velocities of 3 RasTyc new triple system (Klutsch+, 2008)
New triple systems in the RasTyc sample of stellar X-ray sources.
Klutsch A., Frasca A., Guillout P., Freire Ferrero R., Marilli E.,
Mignemi G., Biazzo K.
<Astron. Astrophys. 490, 737 (2008)>
=2008A&A...490..737K 2008A&A...490..737K
ADC_Keywords: Stars, double and multiple ; Binaries, spectroscopic ;
Radial velocities
Keywords: stars: binaries: close - stars: binaries: spectroscopic -
X-rays: stars - stars: late-type - stars: fundamental parameters -
techniques: radial velocities
Abstract:
During the study of a large set of late-type stellar X-ray sources, we
discovered a high fraction of multiple systems.
In this paper we investigate the orbital elements and kinematic
properties of three new spectroscopic triple systems, along with the
spectral types and astrophysical parameters (Teff, logg, vsini, log
N(Li)) of their components.
We conducted follow-up optical observations of these systems, both
photometric and spectroscopic ones at high resolution. We used a
synthetic approach and the cross-correlation method to derive most of
the stellar parameters.
Description:
Spectroscopic observations were first conducted at the OHP between
2001 and 2005 with the aurelie spectrograph within the framework of a
key program on the Coude 152cm telescope.
The observations at the OAC were carried out from 2004 to 2006 with
the fresco echelle spectrograph mounted on the 91cm telescope.
Objects:
---------------------------------------------------------------------------
RA (2000) DE Designation(s)
---------------------------------------------------------------------------
05 24 53.2 +67 39 39 RasTyc 0524+6739 = BD+67 381 = 1RXS J052454.0+673939
18 28 50.3 +35 06 34 RasTyc 1828+3506 = BD+35 3261 = 1RXS J182849.7+350637
20 34 27.5 +82 53 35 RasTyc 2034+8253 = BD+82 622 = 1RXS J200346.2+925334
---------------------------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 61 29 Radial velocity of the third components of
RasTyc0524+6739 from Aurelie (OHP) and FRESCO (OAC)
spectra with ephemeris HJD=2451997.7654+3.6587xE
table3.dat 61 20 Radial velocity of the third components of
RasTyc1828+3506 from Aurelie (OHP) and FRESCO (OAC)
spectra with ephemeris HJD=2452001.408+7.595xE
table4.dat 61 30 Radial velocity of the third components of
RasTyc2034+8253 from Aurelie (OHP) and FRESCO (OAC)
spectra with ephemeris HJD=2452010.7086+4.9538xE
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table?.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 F13.5 d HJD Heliocentric Julian date at mid exposure
15- 19 F5.3 --- Phase [0/1]? Phase (1)
21- 26 F6.2 km/s RVP ?=- Radial velocity of the primary (more massive)
27 A1 --- n_RVP [b] b: Blended CCF peaks
29- 32 F4.2 km/s e_RVP ?=- rms uncertainty on vP
34- 39 F6.2 km/s RVS ?=- Radial velocity of the secondary
40 A1 --- n_RVS [b] b: Blended CCF peaks
42- 45 F4.2 km/s e_RVS ?=- rms uncertainty on vS
47- 52 F6.2 km/s RVT ?=- Radial velocity of the tertiary
54- 57 F4.2 km/s e_RVT ?=- rms uncertainty on vT
59- 61 A3 --- Obs Observatory (2)
--------------------------------------------------------------------------------
Note (1): The orbital phase was computed according to the ephemeris
HJDinf.conj=2451997.7654+3.6587xE for table2.dat,
HJDinf.conj=2452001.408+7.595xE with only 2005 data for table3.dat,
HJDinf.conj=2452010.7086+4.9538xE, for table4.dat,
with zero phase corresponding to the inferior conjunction for the
primary component.
Note (2): Observatories as follows:
OHP = Aurelie, Observatoire de Haute Provence
OAC = FRESCO, Osservatorio Astrofisico di Catania
--------------------------------------------------------------------------------
Acknowledgements:
Alexis Klutcsh, klutsch(at)astro.u-strasbg.fr
(End) Patricia Vannier [CDS] 17-Oct-2008