scholarly journals Spectroscopic binary mass determination using relativity

2009 ◽  
Vol 5 (S261) ◽  
pp. 135-139
Author(s):  
Shay Zucker ◽  
Tal Alexander
Keyword(s):  
Radial Velocity ◽  
High Precision ◽  
Binary Stars ◽  
Relativistic Effects ◽  
Mass Determination ◽  
Stellar Spectroscopy ◽  
Spectroscopic Binary ◽  
The Absolute ◽  
Stellar Masses

AbstractHigh-precision radial-velocity techniques, which enabled the detection of extra-solar planets, are now sensitive to the lowest-order relativistic effects in the data of spectroscopic binary stars (SBs). We show how these effects can be used to derive the absolute masses of the components of eclipsing single-lined SBs and double-lined SBs from Doppler measurements alone. High-precision stellar spectroscopy can thus substantially increase the number of measured stellar masses, thereby improving the mass-radius and mass-luminosity calibrations.

scholarly journals Accurate Binary Mass Determinations: Goals, Limitations, and Prospects

1995 ◽  
Vol 166 ◽  
pp. 187-192
Author(s):  
J. Andersen
Keyword(s):  
High Precision ◽  
Binary Stars ◽  
State Of The Art ◽  
The State ◽  
Accurate Mass ◽  
Mass Determination ◽  
Auxiliary Data ◽  
Typical System ◽  
Stellar Masses ◽  
Precision Astrometry

The state of the art in accurate mass determination for binary stars is reviewed, and the angular sizes and their errors are computed for a typical system from the existing high-precision sample. It appears that sub-μas (microarcsecond) absolute astrometry will be needed in order to improve the accuracy substantially by astrometry alone. The types of system, and the kinds of data, where precision astrometry appears most promising are outlined. Finally, astrophysical applications of such accurate stellar masses, and the auxiliary data required in them, are briefly reviewed.

scholarly journals Masses of the components of SB2 binaries observed with Gaia – V. Accurate SB2 orbits for 10 binaries and masses of the components of 5 binaries

2020 ◽  
Vol 496 (2) ◽  
pp. 1355-1368
Author(s):  
J-L Halbwachs ◽  
F Kiefer ◽  
Y Lebreton ◽  
H M J Boffin ◽  
F Arenou ◽  
...  
Keyword(s):  
Radial Velocity ◽  
Binary Stars ◽  
Main Sequence ◽  
Spectroscopic Binaries ◽  
Orbital Elements ◽  
Evolved Stars ◽  
The Individual ◽  
The Masses ◽  
Stellar Masses ◽  
Selection Of

ABSTRACT Double-lined spectroscopic binaries (SB2s) are one of the main sources of stellar masses, as additional observations are only needed to give the inclinations of the orbital planes in order to obtain the individual masses of the components. For this reason, we are observing a selection of SB2s using the SOPHIE spectrograph at the Haute-Provence observatory in order to precisely determine their orbital elements. Our objective is to finally obtain masses with an accuracy of the order of one per cent by combining our radial velocity (RV) measurements and the astrometric measurements that will come from the Gaia satellite. We present here the RVs and the re-determined orbits of 10 SB2s. In order to verify the masses, we will derive from Gaia, we obtained interferometric measurements of the ESO VLTI for one of these SB2s. Adding the interferometric or speckle measurements already published by us or by others for four other stars, we finally obtain the masses of the components of five binary stars, with masses ranging from 0.51 to 2.2 solar masses, including main-sequence dwarfs and some more evolved stars whose location in the HR diagram has been estimated.

Application of a probabilistic neural network in analysis of the radial velocity curve of spectroscopic binary stars

2012 ◽  
Vol 12 (12) ◽  
pp. 1666-1672 ◽  
Author(s):  
Kamal Ghaderi ◽  
Kayoomars Karami ◽  
Ali Pirkhedri ◽  
Hamid Haj Seyyed Javadi ◽  
Touba Rostami
Keyword(s):  
Neural Network ◽  
Radial Velocity ◽  
Binary Stars ◽  
Probabilistic Neural Network ◽  
Velocity Curve ◽  
Radial Velocity Curve ◽  
Spectroscopic Binary

Application of a probabilistic neural network in radial velocity curve analysis of the spectroscopic binary stars PV Pup, BV Dra, AI Phe, V1130 Tau, NSV 223, and V502 Oph

2011 ◽  
Vol 89 (10) ◽  
pp. 1035-1040 ◽  
Author(s):  
K. Karami ◽  
K. Ghaderi ◽  
R. Mohebi ◽  
M.M. Soltanzadeh
Keyword(s):  
Radial Velocity ◽  
Binary Stars ◽  
Binary Systems ◽  
Probabilistic Neural Network ◽  
Curve Analysis ◽  
Velocity Data ◽  
Radial Velocity Curve ◽  
Spectroscopic Binary ◽  
Radial Velocity Data ◽  
Good Agreement

Using measured radial velocity data from six double-lined spectroscopic binary systems PV Pup, BV Dra, AI Phe, V1130 Tau, NSV 223 (or DZ Psc), and V502 Oph, we find corresponding orbital and spectroscopic elements via the method introduced by Karami et al. (New Astron. 14, 478 (2009)). Our numerical results are in good agreement with those obtained by others using more traditional methods. Using a statistical analysis, we also conclude that for BV Dra, V1130 Tau, NSV 223 (or DZ Psc), and V502 Oph, a circular orbit is quite consistent.

scholarly journals HIGH-PRECISION ORBITAL AND PHYSICAL PARAMETERS OF DOUBLE-LINED SPECTROSCOPIC BINARY STARS—HD78418, HD123999, HD160922, HD200077, AND HD210027

2010 ◽  
Vol 719 (2) ◽  
pp. 1293-1314 ◽  
Author(s):  
Maciej Konacki ◽  
Matthew W. Muterspaugh ◽  
Shrinivas R. Kulkarni ◽  
Krzysztof G. Hełminiak
Keyword(s):  
High Precision ◽  
Binary Stars ◽  
Physical Parameters ◽  
Spectroscopic Binary

scholarly journals NEW ORBITAL PARAMETERS AND RADIAL VELOCITY CURVE ANALYSIS OF SPECTROSCOPIC BINARY STARS

2012 ◽  
Vol 45 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Kamal Ghaderi ◽  
Ali Pirkhedri ◽  
Touba Rostami ◽  
Salem Khodamoradi ◽  
Hedayat Fatahi
Keyword(s):  
Radial Velocity ◽  
Binary Stars ◽  
Curve Analysis ◽  
Velocity Curve ◽  
Radial Velocity Curve ◽  
Orbital Parameters ◽  
Spectroscopic Binary

scholarly journals TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS

2019 ◽  
Vol 492 (2) ◽  
pp. 1761-1769 ◽  
Author(s):  
Monika Lendl ◽  
François Bouchy ◽  
Samuel Gill ◽  
Louise D Nielsen ◽  
Oliver Turner ◽  
...  
Keyword(s):  
Radial Velocity ◽  
High Precision ◽  
Orbital Period ◽  
Mass Star ◽  
Mass Determination ◽  
Velocity Measurements ◽  
Eclipsing Binary ◽  
Photometric Detection ◽  
Long Period ◽  
Low Mass

ABSTRACT We report the period, eccentricity, and mass determination for the Transiting Exoplanet Survey Satellite (TESS) single-transit event candidate TOI-222, which displayed a single 3000 ppm transit in the TESS 2-min cadence data from Sector 2. We determine the orbital period via radial velocity measurements (P = 33.9 d), which allowed for ground-based photometric detection of two subsequent transits. Our data show that the companion to TOI-222 is a low-mass star, with a radius of $0.18_{-0.10}^{+0.39}$ R⊙ and a mass of 0.23 ± 0.01 M⊙. This discovery showcases the ability to efficiently discover long-period systems from TESS single-transit events using a combination of radial velocity monitoring coupled with high-precision ground-based photometry.

scholarly journals Precision radial velocities of double-lined binary stars and the spectroscopic follow-up of circumbinary transiting planet candidates

2008 ◽  
Vol 4 (S253) ◽  
pp. 141-147 ◽  
Author(s):  
Maciej Konacki
Keyword(s):  
Radial Velocity ◽  
Binary Stars ◽  
Radial Velocities ◽  
Eclipsing Binary ◽  
Iodine Cell ◽  
Eclipsing Binary Stars ◽  
Spectroscopic Binary ◽  
Better Than ◽  
Circumbinary Planets

AbstractWe present a new iodine cell based approach that allows one to obtain radial velocities of the components of double-lined spectroscopic binary stars (SB2s) with a precision reaching 5 m/s. Such an RV precision is up to 100 times better than what is currently available in the literature for the SB2s. We discuss the applications of our method to the radial velocity searches for circumbinary planets and spectroscopic follow-up of transiting planet candidates around eclipsing binary stars.

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