scholarly journals A new radial velocity curve for the RS CVn star σ Gem

1997 ◽  
Vol 123 (2) ◽  
pp. 209-218 ◽  
Author(s):  
R. Duemmler ◽  
I. V. Ilyin ◽  
I. Tuominen
Keyword(s):  
Radial Velocity ◽  
Velocity Curve ◽  
Radial Velocity Curve

scholarly journals The Radial Velocity Curve of V652 Her (BD+13°3224)

1985 ◽  
Vol 87 ◽  
pp. 109-115
Author(s):  
P.W. Hill ◽  
C.S. Jeffery
Keyword(s):  
Radial Velocity ◽  
Time Resolution ◽  
High Frequency ◽  
Velocity Curve ◽  
Velocity Data ◽  
Effective Surface ◽  
Radial Velocity Curve ◽  
Minimum Radius ◽  
Helium Star ◽  
Radial Velocity Data

AbstractNew radial velocity data for the pulsating extreme helium star V652 Her (BD+13°3224) have been obtained with a time resolution of 100 s. High frequency structure in the radial velocity curve is detected, and a comparison with previous data suggests that the detailed shape of the velocity curve is variable. The data imply that the effective surface gravity must increase by a factor of 4 at minimum radius.

The radial-velocity curve of V1010 Ophiuchi - Orbital elements and the rotational disturbance

1988 ◽  
Vol 100 ◽  
pp. 371 ◽  
Author(s):  
Thaddeus F. Worek ◽  
Eugene R. Zizka ◽  
Merle W. King ◽  
Joost H. Kiewiet de Jonge
Keyword(s):  
Radial Velocity ◽  
Velocity Curve ◽  
Orbital Elements ◽  
Radial Velocity Curve

scholarly journals New Spectroscopic Observations of Dwarf Nova BZ Ursae Majoris with Extremely Unusual Emission Lines Profiles

2004 ◽  
Vol 194 ◽  
pp. 269-269 ◽  
Author(s):  
V. V. Neustroev ◽  
S. V. Zharikov ◽  
A. Medvedev ◽  
A. Shearer
Keyword(s):  
Radial Velocity ◽  
Emission Line ◽  
Velocity Curve ◽  
Emission Lines ◽  
Radial Velocity Curve ◽  
Dwarf Nova ◽  
Preliminary Results ◽  
Spectroscopic Observations ◽  
Medium Resolution ◽  
Hα Emission

We present preliminary results of new spectroscopic observations of dwarf nova BZ UMa in quiescence. Fifty medium resolution spectra allow us to reproduce the radial velocity curve from the Hα emission line. We confirm that BZ UMa shows extremely unusual emission lines profiles, Unlike the classical single or the double-peaked profiles usually observed in spectra of dwarf novae, emission lines of BZ UMa consist of at least five peaks.

A Radial-Velocity Curve for WR 46 (WN3p)

1995 ◽  
pp. 243-244 ◽  
Author(s):  
P. M. Veen ◽  
A. M. Van Genderen ◽  
M. A. W. Verhelfen ◽  
K. A. Van Der Hucht
Keyword(s):  
Radial Velocity ◽  
Velocity Curve ◽  
Radial Velocity Curve

scholarly journals The radial velocity curve of HD 153919 (4U 1700-37) revisited

2003 ◽  
Vol 407 (2) ◽  
pp. 685-690 ◽  
Author(s):  
G. Hammerschlag-Hensberge ◽  
M. H. van Kerkwijk ◽  
L. Kaper
Keyword(s):  
Radial Velocity ◽  
Velocity Curve ◽  
Radial Velocity Curve

scholarly journals A Tale on Two Close Binaries in Pegasus

2014 ◽  
Vol 23 (2) ◽  
Author(s):  
H. V. Şenavcı ◽  
M. Yılmaz ◽  
Ö. Baştürk ◽  
İ. Özavcı ◽  
Ş. Çalışkan ◽  
...  
Keyword(s):  
Radial Velocity ◽  
Main Sequence ◽  
Curve Analysis ◽  
Velocity Curve ◽  
Close Binaries ◽  
Main Sequence Stars ◽  
Radial Velocity Curve ◽  
Contact Binaries ◽  
Effective Temperatures

AbstractWe present the simultaneous light and radial velocity curve analysis of two contact binaries in Pegasus using the Wilson-Devinney code. The following absolute astrophysical parameters are determined: masses, radii and effective temperatures. BB Peg is a W-subtype W UMa-type binary, components of which are main sequence stars with 0.50

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