SIMBAD references

2021MNRAS.503L..38O - Mon. Not. R. Astron. Soc., 503, L38-L46 (2021/May-1)

Phase curve and variability analysis of WASP-12b using TESS photometry.

OWENS N., DE MOOIJ E.J.W., WATSON C.A. and HOOTON M.J.

Abstract (from CDS):

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 ± 62 ppm, and a secondary eclipse depth of 609+74–73 ppm. The peak of the phase curve is shifted by 0.049 ± 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 ± 97 ppm, implying a night-side brightness temperature of <2529 K (1-σ). We do not detect any significant variability in the light from the planet over the ∼27 d of the TESS observations. Finally, we note that an ephemeris model taking orbital decay into account provides a significantly better fit than a constant-period model.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): techniques: photometric - planets and satellites: atmospheres - planets and satellites: individual: WASP-12b - planets and satellites: gaseous planets

Simbad objects: 3

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