Connecting the formation of stars and planets. I -- Spectroscopic characterization of host stars with TIGRE

In search for a connection between the formation of stars and the formation of planets, a new semi-automatic spectral analysis method using $\mathsf{\text{iSpec}}$ was developed for the TIGRE telescope installed in Guanajuato, Mexico. TIGRE is a 1.2m robotic telescope, equipped with an Echelle spectrograph (HEROS), with a resolution R $\simeq 20000$. $\mathsf{\text{iSpec}}$ is a synthetic spectral fitting program for stars that allows to determine in an homogeneous way their fundamental parameters: effective temperature, $T_{\mathrm{e}\mathrm{f}\mathrm{f}}$, surface gravity, $\log g$, metallicities, $[M\mathrm{/}H]$ and $[Fe\mathrm{/}H]$, and rotational velocity, $V \sin i$. In this first article we test our method by analysing the spectra of 46 stars, host of exoplanets, obtained with the TIGRE.