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| Paper: |
Search for Giant Planets around White Dwarfs with HST, Spitzer, and VLT |
| Volume: |
372, 15th European Workshop on White Dwarfs |
| Page: |
343 |
| Authors: |
Friedrich, S.; Zinnecker, H.; Correia, S.; Brandner, W.; Burleigh, M.; McCaughrean, M. |
| Abstract: |
For the last three years we have performed a survey for young (< 3 Gyrs) giant planets around nearby white dwarfs with HST, Spitzer, and VLT. Direct HST/NICMOS imaging of the seven white dwarfs in the Hyades gave no evidence for companions down to about 10 Jupiter masses and separations larger than 0.5 arcsec (~25AU), while VLT/NACO observations revealed a putative companion to a field white dwarf. Second epoch observations with SINFONI on the VLT, however, showed that it is most probably a background star. With IRAC on Spitzer we also found no indications of cool, very low mass companions in our sample of field white dwarfs. The implications of these non-detections are briefly discussed. |
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