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 percent 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 4 other stars , we finally obtain the masses of the components of 5 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 .