Gaia white dwarfs within 40 pc – I. Spectroscopic observations of new candidates

  title={Gaia white dwarfs within 40 pc – I. Spectroscopic observations of new candidates},
  author={P.-E. Tremblay and Mark Andrew Hollands and Nicola Pietro Gentile Fusillo and J. E. McCleery and Paula Izquierdo and Boris T. Gansicke and Elena Cukanovaite and Detlev Koester and Warren R. Brown and S. Charpinet and Tim Cunningham and Jay Farihi and Noemi Giammichele and Val{\'e}rie Van Grootel and J. J. Hermes and M Hoskin and Stefan Jordan and S. O. Kepler and Scott J. Kleinman and Christopher J. Manser and Thomas R. Marsh and Domitilla de Martino and Atsuko Nitta and Steven G Parsons and Ingrid Pelisoli and Roberto Raddi and Alberto Rebassa-Mansergas and J.-J. Ren and Matthias R Schreiber and Roberto Silvotti and Odette Toloza and Silvia Toonen and Santiago Torres},
  journal={Monthly Notices of the Royal Astronomical Society},
We present a spectroscopic survey of 230 white dwarf candidates within 40 pc of the Sun from the William Herschel Telescope and Gran Telescopio Canarias. All candidates were selected from $\textit{Gaia}$ Data Release 2 (DR2) and in almost all cases had no prior spectroscopic classifications. We find a total of 191 confirmed white dwarfs and 39 main-sequence star contaminants. The majority of stellar remnants in the sample are relatively cool ($\langle T_{\rm eff} \rangle$ = 6200 K), showing… Expand
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