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

Niall Owens; E. J. W. de Mooij; C. A. Watson; M. J. Hooton

doi:10.1093/mnrasl/slab014

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

Niall Owens, E. J. W. de Mooij, C. A. Watson, M. J. Hooton

School of Mathematics and Physics

Research output: Contribution to journal › Article › peer-review

21 Downloads (Pure)

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
Journal	Monthly Notices of the Royal Astronomical Society: Letters
Early online date	03 Feb 2021
DOIs	https://doi.org/10.1093/mnrasl/slab014
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

Access to Document

10.1093/mnrasl/slab014Licence: Unspecified

Phase curve and variability analysis of WASP-12b using TESS photometry
Copyright 2021 the Authors This work is made available online in accordance with the publisher’s policies. Please refer to any applicable terms of use of the publisher.
Accepted author manuscript, 9.17 MB

Fingerprint Dive into the research topics of 'Phase curve and variability analysis of WASP-12b using TESS photometry'. Together they form a unique fingerprint.

Cite this

@article{471df2b2739943dd811b5435b058676b,

title = "Phase curve and variability analysis of WASP-12b using TESS photometry",

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 $",

keywords = "planets and satellites: atmospheres, planets and satellites: individual: WASP-12b, planets and satellites: gaseous, techniques: photometric",

author = "Niall Owens and {de Mooij}, {E. J. W.} and Watson, {C. A.} and Hooton, {M. J.}",

year = "2021",

month = feb,

day = "3",

doi = "10.1093/mnrasl/slab014",

language = "English",

journal = "Monthly Notices of the Royal Astronomical Society: Letters, Volume 437, Issue 1, p.L51-L55",

issn = "1745-3933",

publisher = "Oxford University Press",

}

TY - JOUR

T1 - Phase curve and variability analysis of WASP-12b using TESS photometry

AU - Owens, Niall

AU - de Mooij, E. J. W.

AU - Watson, C. A.

AU - Hooton, M. J.

PY - 2021/2/3

Y1 - 2021/2/3

N2 - 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 $

AB - 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 $

KW - planets and satellites: atmospheres

KW - planets and satellites: individual: WASP-12b

KW - planets and satellites: gaseous

KW - techniques: photometric

U2 - 10.1093/mnrasl/slab014

DO - 10.1093/mnrasl/slab014

M3 - Article

JO - Monthly Notices of the Royal Astronomical Society: Letters, Volume 437, Issue 1, p.L51-L55

JF - Monthly Notices of the Royal Astronomical Society: Letters, Volume 437, Issue 1, p.L51-L55

SN - 1745-3933

ER -