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| Paper: |
Detectability of Substellar Companions Around White Dwarfs with Gaia |
| Volume: |
493, 19th European Workshop on White Dwarfs |
| Page: |
455 |
| Authors: |
Silvotti, R.; Sozzetti, A.; Lattanzi, M.; Morbidelli, R. |
| Abstract: |
To date not a single-bona fide planet has been identified orbiting a single
white dwarf.
In fact we are ignorant about the final configuration of >95%
of planetary systems.
Theoretical models predict a gap in the final distribution of orbital periods, due to the opposite effects of stellar mass loss (planets pushed outwards)
and tidal interactions (planets pushed inwards) during the RGB and the AGB
stellar expansions.
Over its five year primary mission, Gaia is expected to astrometrically detect
the first (few tens of) WD massive planets/BDs giving first evidence
that WD planets exist, at least those in wide orbits.
In this article we present preliminary results of our simulations
of what Gaia should be able to find in this field. |
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