Revisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 b
We present a transit-timing variation (TTV) and planetary atmosphere analysis of the Neptune-mass planet HAT-P-26 b. We present a new set of 13 transit light curves from optical ground-based observations and combine them with light curves from the Wide Field Camera 3 on the Hubble Space Telescope, t...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astronomical Journal |
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| Online Access: | https://doi.org/10.3847/1538-3881/acfeea |
| _version_ | 1797639984730079232 |
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| author | Napaporn A-thano Supachai Awiphan Ing-Guey Jiang Eamonn Kerins Akshay Priyadarshi Iain McDonald Yogesh C. Joshi Thansuda Chulikorn Joshua J. C. Hayes Stephen Charles Chung-Kai Huang Ronnakrit Rattanamala Li-Chin Yeh Vik S Dhillon |
| author_facet | Napaporn A-thano Supachai Awiphan Ing-Guey Jiang Eamonn Kerins Akshay Priyadarshi Iain McDonald Yogesh C. Joshi Thansuda Chulikorn Joshua J. C. Hayes Stephen Charles Chung-Kai Huang Ronnakrit Rattanamala Li-Chin Yeh Vik S Dhillon |
| author_sort | Napaporn A-thano |
| collection | DOAJ |
| description | We present a transit-timing variation (TTV) and planetary atmosphere analysis of the Neptune-mass planet HAT-P-26 b. We present a new set of 13 transit light curves from optical ground-based observations and combine them with light curves from the Wide Field Camera 3 on the Hubble Space Telescope, the Transiting Exoplanet Survey Satellite, and previously published ground-based data. We refine the planetary parameters of HAT-P-26 b and undertake a TTV analysis using 33 transits obtained over seven years. The TTV analysis shows an amplitude signal of 1.98 ± 0.05 minutes, which could result from the presence of an additional ∼0.02 M _Jup planet at a 1:2 mean-motion resonance orbit. Using a combination of transit depths spanning optical to near-infrared wavelengths, we find that the atmosphere of HAT-P-26 b contains ${2.4}_{-1.6}^{+2.9}$ % H _2 O with a derived temperature of ${590}_{-50}^{+60}$ K. |
| first_indexed | 2024-03-11T13:25:23Z |
| format | Article |
| id | doaj.art-5f3eb71b196a432abebc5ae9d8faa196 |
| institution | Directory Open Access Journal |
| issn | 1538-3881 |
| language | English |
| last_indexed | 2024-03-11T13:25:23Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astronomical Journal |
| spelling | doaj.art-5f3eb71b196a432abebc5ae9d8faa1962023-11-03T07:27:12ZengIOP PublishingThe Astronomical Journal1538-38812023-01-01166622310.3847/1538-3881/acfeeaRevisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 bNapaporn A-thano0https://orcid.org/0000-0001-7234-7167Supachai Awiphan1https://orcid.org/0000-0003-3251-3583Ing-Guey Jiang2https://orcid.org/0000-0001-7359-3300Eamonn Kerins3https://orcid.org/0000-0002-1743-4468Akshay Priyadarshi4https://orcid.org/0000-0003-1143-0877Iain McDonald5https://orcid.org/0000-0003-0356-0655Yogesh C. Joshi6https://orcid.org/0000-0001-8657-1573Thansuda Chulikorn7Joshua J. C. Hayes8Stephen Charles9Chung-Kai Huang10https://orcid.org/0000-0003-0728-1493Ronnakrit Rattanamala11Li-Chin Yeh12https://orcid.org/0000-0001-8677-0521Vik S Dhillon13Department of Physics and Institute of Astronomy, National Tsing-Hua University , Hsinchu 30013, Taiwan ; napaporn@gapp.nthu.edu.tw, jiang@phys.nthu.edu.twNational Astronomical Research Institute of Thailand , 260 Moo 4, Donkaew, Mae Rim, Chiang Mai 50180, Thailand ; supachai@narit.or.thDepartment of Physics and Institute of Astronomy, National Tsing-Hua University , Hsinchu 30013, Taiwan ; napaporn@gapp.nthu.edu.tw, jiang@phys.nthu.edu.twJodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UKJodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UKJodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK; Department of Physical Sciences, The Open University , Walton Hall, Milton Keynes MK7 6AA, UKAryabhatta Research Institute of Observational Sciences (ARIES) , Manora Peak, Nainital 263001, IndiaDepartment of Physics, Faculty of Science, Chulalongkorn University , 254 Phayathai Road, Pathumwan, Bangkok 10330, ThailandJodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UKJodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UKInstitute of Astronomy and Astrophysics , Academia Sinica, No.1, Sec. 4, Roosevelt Road, Taipei 10617, TaiwanPhD Program in Astronomy, Department of Physics and Materials Science, Faculty of Science, Chiang Mai University , Chiang Mai 50200, Thailand; Department of Physics and General Science, Faculty of Science and Technology, Nakhon Ratchasima Rajabhat University , Nakhon Ratchasima 30000, ThailandInstitute of Computational and Modeling Science, National Tsing-Hua University , Hsinchu 30013, TaiwanDepartment of Physics and Astronomy, University of Sheffield , Sheffield S3 7RH, UK; Instituto de Astrofísica de Canarias , E-38205 La Laguna, Tenerife, SpainWe present a transit-timing variation (TTV) and planetary atmosphere analysis of the Neptune-mass planet HAT-P-26 b. We present a new set of 13 transit light curves from optical ground-based observations and combine them with light curves from the Wide Field Camera 3 on the Hubble Space Telescope, the Transiting Exoplanet Survey Satellite, and previously published ground-based data. We refine the planetary parameters of HAT-P-26 b and undertake a TTV analysis using 33 transits obtained over seven years. The TTV analysis shows an amplitude signal of 1.98 ± 0.05 minutes, which could result from the presence of an additional ∼0.02 M _Jup planet at a 1:2 mean-motion resonance orbit. Using a combination of transit depths spanning optical to near-infrared wavelengths, we find that the atmosphere of HAT-P-26 b contains ${2.4}_{-1.6}^{+2.9}$ % H _2 O with a derived temperature of ${590}_{-50}^{+60}$ K.https://doi.org/10.3847/1538-3881/acfeeaExoplanet astronomyExoplanet atmospheresTiming variation methods |
| spellingShingle | Napaporn A-thano Supachai Awiphan Ing-Guey Jiang Eamonn Kerins Akshay Priyadarshi Iain McDonald Yogesh C. Joshi Thansuda Chulikorn Joshua J. C. Hayes Stephen Charles Chung-Kai Huang Ronnakrit Rattanamala Li-Chin Yeh Vik S Dhillon Revisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 b The Astronomical Journal Exoplanet astronomy Exoplanet atmospheres Timing variation methods |
| title | Revisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 b |
| title_full | Revisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 b |
| title_fullStr | Revisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 b |
| title_full_unstemmed | Revisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 b |
| title_short | Revisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 b |
| title_sort | revisiting the transit timing and atmosphere characterization of the neptune mass planet hat p 26 b |
| topic | Exoplanet astronomy Exoplanet atmospheres Timing variation methods |
| url | https://doi.org/10.3847/1538-3881/acfeea |
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