We present orbital elements, parallaxes and individual component masses, for fourteen spatially resolved double-line spectroscopic binaries derived doing a simultaneous fit of their visual orbit radial velocity curve. This was done by means Markov Chain Monte Carlo code developed our group, which produces posterior distribution functions error estimates all the parameters. Of this sample, six s...

We present high angular resolution imaging observations of 517 host stars TESS exoplanet candidates using the `Alopeke and Zorro speckle cameras at Gemini North South. The sample consists mainly bright F, G, K distances less than 500 pc. Our span resolutions ~20 mas out to 1.2 arcsec, yielding spatial <10 AU for most stars, our contrast limits can detect companion 5-9 magnitudes fainter primary...