| |
 |
| Paper: |
White Dwarfs Escaping From the Hyades |
| Volume: |
469, 18th European White Dwarf Workshop (EUROWD12) |
| Page: |
105 |
| Authors: |
Tremblay, P.-E.; Schilbach, E.; Röser, S.; Jordan, S.; Ludwig, H.-G.; Goldman, B. |
| Abstract: |
Ten white dwarfs are currently known to be associated with the Hyades
cluster. This number of degenerate objects is too low when compared to the
predictions of numerical simulations. Using the PPMXL catalog of proper
motions and positions, 17 new Hyades white dwarf candidates have recently been
proposed, most of them outside of the tidal radius. They could potentially
explain the discrepancy between the observed and predicted number of
associated objects. We review the Hyades membership of these candidates by
using spectroscopic and photometric observations, as well as by simulating the
contamination from field white dwarfs. We find that six objects remain
candidates, and three more objects have an uncertain membership status due to
their unknown or imprecise atmospheric parameters. |
|
|
|
|
|
