180 Transit and occultation times for WASP-12b : J/AJ/161/72

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Authors : Turner J.D. orcid , Ridden-Harper A., Jayawardhana R. (hide) , Ridden-Harper A., Jayawardhana R. et..al

VizieR DOI : 10.26093/cds/vizier.51610072
Bibcode : 2021AJ....161...72T (ADS) (Simbad) (Objects)
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CDS Keywords : Exoplanets; Stars, double and multiple; Occultations
UAT : Exoplanets, Multiple stars, Occultation

Observation (OC)

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Inserted into VizieR : 21-Apr-2021
Last modification : 08-Dec-2021

Decaying orbit of the hot Jupiter WASP-12b confirmation with TESS observations. (2021)

Keywords : Exoplanets ; Exoplanet dynamics ; Exoplanet astronomy ; Exoplanet tides

Abstract:Theory suggests that the orbits of some close-in giant planets should decay due to tidal interactions with their host stars. To date, WASP-12b is the only hot Jupiter reported to have a decaying orbit, at a rate of 29{+/-}2ms/yr. We analyzed data from NASA's Transiting Exoplanet Survey Satellite (TESS) to verify that WASP-12b's orbit is indeed changing. We find that the TESS transit and occultation data are consistent with a decaying orbit with an updated period of 1.091420090{+/-}0.000000041days and a decay rate of 32.53{+/-}1.62ms/yr. We find an orbital decay timescale of {tau}=P/|P|=2.90{+/-}0.14Myr. If the observed decay results from tidal dissipation, the modified tidal quality factor is ...(more)
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American Astronomical Society policies
Transiting Exoplanet Survey Satellite (TESS) observed WASP-12b in Sector 20 (2019 December 24 through 2020 January 20). These observations were processed by the Science Processing Operations Center (SPOC) pipeline. All of the SPOC data products are publicly accessible from the Mikulski Archive for Space Telescopes (MAST; http://archive.stsci.edu/).

  • J/ApJ/720/872 : A spectropolarimetric analysis of WASP-12 (Fossati+, 2010)
  • J/ApJ/727/125 : Two secondary eclipses of WASP-12b with Spitzer (Campo+, 2011)
  • J/AJ/141/179 : Transits of TrES-4b, HAT-P-3b and WASP-12b (Chan+, 2011)
  • J/A+A/551/A108 : Multi-site obs. of WASP-12 b transit (Maciejewski+, 2013)
  • J/ApJS/208/16 : Kepler transit timing observations. VIII. (Mazeh+, 2013)
  • J/A+A/588/L6 : WASP-12 transit light curves (Maciejewski+ 2016)
  • J/A+A/600/A30 : Limb-darkening for TESS satellite (Claret, 2017)
  • J/AJ/154/4 : Times of transits and occultations of WASP-12b (Patra+, 2017)
  • J/AcA/68/371 : WASP and KELT planet transits (Maciejewski+, 2018)
  • J/AJ/158/190 : Main sequence hot Jupiter hosts good astrometry (Hamer+, 2019)
  • J/A+A/628/A115 : WASP-12, CoRoT-1 and TrES-3 light curves (von Essen+, 2019)
  • J/AJ/159/150 : Transit times of 11 hot Jupiters (Patra+, 2020)
  • http://archive.stsci.edu/ : MAST archives

                


                

                    

                


                

                    

                


                

                    
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