The planet-host pulsating star HR 8799 as seen by BRITE
Abstract
HR 8799 is a well-known planet-host star with at least 4 planets discovered by direct imaging. HR 8799 is also a gamma Doradus pulsator, target of several previous photometric studies. BRITE observed this target in 2017 for 140 days, obtaining the most extended photometric data on this pulsator to date. We analyse these data in comparison with the results of previous space- and ground-based photometric observations. We confirm our earlier conclusion that resonances in the sparse frequency content of this pulsator might render the astreroseismic investigations rather difficult, if not impossible.
- Publication:
-
Stars and their Variability Observed from Space
- Pub Date:
- 2020
- Bibcode:
- 2020svos.conf...91S
- Keywords:
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- techniques: photometric;
- stars: oscillations