Search for companions in visual binary systems using precise radial-velocity measurements

2018 ◽  
Vol 70 (4) ◽  
Author(s):  
Noriyuki Katoh ◽  
Yoichi Itoh ◽  
Bun’ei Sato
Keyword(s):  
Radial Velocity ◽  
Binary Systems ◽  
Velocity Measurements ◽  
Visual Binary

The Measurement of Radial-Velocity Differences Between the Components of Close Visual Binary Systems

1965 ◽  
Vol 5 ◽  
pp. 102-108
Author(s):  
A. H. Batten ◽  
J. M. Fletcher
Keyword(s):  
Radial Velocity ◽  
Binary Systems ◽  
Line Profiles ◽  
Spectrograph Slit ◽  
Visual Binary ◽  
The Difference ◽  
Visual Binaries

AbstractThe value obtained for the difference in radial velocity between components of a visual binary that is unresolved on the spectrograph slit appears to depend, sometimes, on whether the measurement is made visually with a microscope or by means of an oscilloscopic setting device. This apparent dependence has been confirmed by measurement of artificially produced double-lined spectrograms, and disappears for line pairs separated by more than 1.5 or 2 times the half-widths of their components. The dependence arises from blending of the two line profiles. There is some evidence that the results obtained from visual measures are affected by the scale of the image being measured. For this reason, oscilloscope measures are probably to be preferred; although their errors are sometimes larger, they seem to be more consistent. Errors arising from this sort of blending are not sufficient to explain measures of relative radial velocity of the components of some visual binaries, that differ widely from the predictions made from the visual orbits.

scholarly journals Radial velocity measurements and orbit determination of eight single-lined spectroscopic binary systems

2017 ◽  
Vol 338 (6) ◽  
pp. 671-679 ◽  
Author(s):  
R. Bischoff ◽  
M. Mugrauer ◽  
T. Zehe ◽  
D. Wöckel ◽  
A. Pannicke ◽  
...  
Keyword(s):  
Radial Velocity ◽  
Orbit Determination ◽  
Binary Systems ◽  
Velocity Measurements ◽  
Spectroscopic Binary

scholarly journals The Measurement of Radial-Velocity Differences Between the Components of Close Visual Binary Systems

1971 ◽  
Vol 5 ◽  
pp. 102-108
Author(s):  
A. H. Batten ◽  
J. M. Fletcher
Keyword(s):  
Radial Velocity ◽  
Binary Systems ◽  
Line Profiles ◽  
Spectrograph Slit ◽  
Visual Binary ◽  
The Difference ◽  
Visual Binaries

AbstractThe value obtained for the difference in radial velocity between components of a visual binary that is unresolved on the spectrograph slit appears to depend, sometimes, on whether the measurement is made visually with a microscope or by means of an oscilloscopic setting device. This apparent dependence has been confirmed by measurement of artificially produced doublelined spectrograms, and disappears for line pairs separated by more than 1.5 or 2 times the half-widths of their components. The dependence arises from blending of the two line profiles. There is some evidence that the results obtained from visual measures are affected by the scale of the image being measured. For this reason, oscilloscope measures are probably to be preferred; although their errors are sometimes larger, they seem to be more consistent. Errors arising from this sort of blending are not sufficient to explain measures of relative radial velocity of the components of some visual binaries, that differ widely from the predictions made from the visual orbits.

scholarly journals Radial Velocity Search for Extrasolar Planets in Visual Binary Systems

2009 ◽  
Vol 61 (1) ◽  
pp. 19-28 ◽  
Author(s):  
Eri Toyota ◽  
Yoichi Itoh ◽  
Shinichiro Ishiguma ◽  
Seitaro Urakawa ◽  
Daisuke Murata ◽  
...  
Keyword(s):  
Radial Velocity ◽  
Binary Systems ◽  
Extrasolar Planets ◽  
Visual Binary

scholarly journals The Impact of Gaia and LSST on Binaries and Exoplanets

2011 ◽  
Vol 7 (S282) ◽  
pp. 33-40
Author(s):  
L. Eyer ◽  
P. Dubath ◽  
N. Mowlavi ◽  
P. North ◽  
A. Triaud ◽  
...  
Keyword(s):  
Radial Velocity ◽  
Large Scale ◽  
Binary Systems ◽  
New Era ◽  
The Subject ◽  
The Impact

AbstractTwo upcoming large scale surveys, the ESA Gaia and LSST projects, will bring a new era in astronomy. The number of binary systems that will be observed and detected by these projects is enormous, estimations range from millions for Gaia to several tens of millions for LSST. We review some tools that should be developed and also what can be gained from these missions on the subject of binaries and exoplanets from the astrometry, photometry, radial velocity and their alert systems.

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