Abstract
We analyse Sector 20 TESS photometry of the ultra-hot Jupiter WASP-12b,
and extract its phase curve to study the planet's atmospheric
properties. We successfully recover the phase curve with an amplitude of
549 $\pm$ 62 ppm, and a secondary eclipse depth of 609$^{+74}_{-73}$
ppm. The peak of the phase curve is shifted by 0.049 $\pm$ 0.015 in
phase, implying that the brightest spot in the atmosphere is shifted
from the substellar point towards the planet's evening terminator.
Assuming zero albedo, the eclipse depth infers a day-side brightness
temperature of 3128$^{+64}_{-68}$ K. No significant detection of flux
from the night-side is found at 60 $\pm$ 97 ppm, implying a night-side
brightness temperature of $
Original language | English |
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Journal | Monthly Notices of the Royal Astronomical Society: Letters |
Early online date | 03 Feb 2021 |
DOIs | |
Publication status | Early online date - 03 Feb 2021 |
Keywords
- planets and satellites: atmospheres
- planets and satellites: individual: WASP-12b
- planets and satellites: gaseous
- techniques: photometric