True Mass and Atmospheric Composition of the Nontransiting Hot Jupiter HD 143105 b
We present Keck/KPIC Phase II K -band observations of the nontransiting hot Jupiter HD 143105 b. Using a cross-correlation approach, we make the first detection of the planetary atmosphere at ${K}_{{\rm{p}}}=18{5}_{-13}^{+11}$ km s ^−1 and an inferior conjunction time 2.5 hr before the previously pu...
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2025-01-01
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| author | Luke Finnerty Yinzi Xin Jerry W. Xuan Julie Inglis Michael P. Fitzgerald Shubh Agrawal Ashley Baker Randall Bartos Geoffrey A. Blake Benjamin Calvin Sylvain Cetre Jacques-Robert Delorme Greg Doppmann Daniel Echeverri Katelyn Horstman Chih-Chun Hsu Nemanja Jovanovic Joshua Liberman Ronald A. López Emily C. Martin Dimitri Mawet Evan Morris Jacklyn Pezzato-Rovner Jean-Baptiste Ruffio Ben Sappey Tobias Schofield Andrew Skemer Taylor Venenciano J. Kent Wallace Nicole L. Wallack Jason J. Wang Ji Wang |
| author_facet | Luke Finnerty Yinzi Xin Jerry W. Xuan Julie Inglis Michael P. Fitzgerald Shubh Agrawal Ashley Baker Randall Bartos Geoffrey A. Blake Benjamin Calvin Sylvain Cetre Jacques-Robert Delorme Greg Doppmann Daniel Echeverri Katelyn Horstman Chih-Chun Hsu Nemanja Jovanovic Joshua Liberman Ronald A. López Emily C. Martin Dimitri Mawet Evan Morris Jacklyn Pezzato-Rovner Jean-Baptiste Ruffio Ben Sappey Tobias Schofield Andrew Skemer Taylor Venenciano J. Kent Wallace Nicole L. Wallack Jason J. Wang Ji Wang |
| author_sort | Luke Finnerty |
| collection | DOAJ |
| description | We present Keck/KPIC Phase II K -band observations of the nontransiting hot Jupiter HD 143105 b. Using a cross-correlation approach, we make the first detection of the planetary atmosphere at ${K}_{{\rm{p}}}=18{5}_{-13}^{+11}$ km s ^−1 and an inferior conjunction time 2.5 hr before the previously published ephemeris. The retrieved K _p value, in combination with the orbital period, mass of the host star, and lack of transit detection, give an orbital inclination of $7{8}_{-12}^{\circ +2}$ and a true planet mass of 1.23 ± 0.10 M _J . While the equilibrium temperature of HD 143105 b is in the transition regime between noninverted and inverted atmospheres, our analysis strongly prefers a noninverted atmosphere. Retrieval analysis indicates the atmosphere of HD 143105 b is cloud free to approximately 1 bar and dominated by H _2 O absorption ( ${\mathrm{logH}}_{2}{{\rm{O}}}_{\mathrm{MMR}}=-3.{9}_{-0.5}^{+0.8}$ ), placing only an upper limit on the CO abundance ( ${\mathrm{logCO}}_{\mathrm{MMR}}\lt -3.7$ at 95% confidence). We place no constraints on the abundances of Fe, Mg, or ^13 CO. From these abundances, we place an upper limit on the carbon-to-oxygen ratio for HD 143105 b, C/O < 0.2 at 95% confidence, and find the atmospheric metallicity is approximately 0.1 × solar. The low metallicity may be responsible for the lack of a thermal inversion, which at the temperature of HD 143105 b would likely require significant opacity from TiO and/or VO. With these results, HD 143105 b joins the small number of nontransiting hot Jupiters with detected atmospheres. |
| format | Article |
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| institution | Kabale University |
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| spelling | doaj-art-aba3b6fd75b74c7db05eed85222dd14a2025-01-27T11:24:08ZengIOP PublishingThe Astronomical Journal1538-38812025-01-0116929410.3847/1538-3881/ada1d9True Mass and Atmospheric Composition of the Nontransiting Hot Jupiter HD 143105 bLuke Finnerty0https://orcid.org/0000-0002-1392-0768Yinzi Xin1https://orcid.org/0000-0002-6171-9081Jerry W. Xuan2https://orcid.org/0000-0002-6618-1137Julie Inglis3Michael P. Fitzgerald4https://orcid.org/0000-0002-0176-8973Shubh Agrawal5https://orcid.org/0000-0003-2429-5811Ashley Baker6https://orcid.org/0000-0002-6525-7013Randall Bartos7Geoffrey A. Blake8https://orcid.org/0000-0003-0787-1610Benjamin Calvin9https://orcid.org/0000-0003-4737-5486Sylvain Cetre10Jacques-Robert Delorme11https://orcid.org/0000-0001-8953-1008Greg Doppmann12Daniel Echeverri13https://orcid.org/0000-0002-1583-2040Katelyn Horstman14https://orcid.org/0000-0001-9708-8667Chih-Chun Hsu15https://orcid.org/0000-0002-5370-7494Nemanja Jovanovic16https://orcid.org/0000-0001-5213-6207Joshua Liberman17https://orcid.org/0000-0002-4934-3042Ronald A. López18https://orcid.org/0000-0002-2019-4995Emily C. Martin19https://orcid.org/0000-0002-0618-5128Dimitri Mawet20https://orcid.org/0000-0002-8895-4735Evan Morris21Jacklyn Pezzato-Rovner22Jean-Baptiste Ruffio23https://orcid.org/0000-0003-2233-4821Ben Sappey24https://orcid.org/0000-0003-1399-3593Tobias Schofield25Andrew Skemer26https://orcid.org/0000-0001-6098-3924Taylor Venenciano27https://orcid.org/0000-0003-0122-8915J. Kent Wallace28https://orcid.org/0000-0001-5299-6899Nicole L. Wallack29https://orcid.org/0000-0003-0354-0187Jason J. Wang30https://orcid.org/0000-0003-0774-6502Ji Wang31https://orcid.org/0000-0002-4361-8885Department of Physics & Astronomy, 430 Portola Plaza, University of California , Los Angeles, CA 90095, USA ; lfinnerty@astro.ucla.eduDepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USADepartment of Physics & Astronomy, 430 Portola Plaza, University of California , Los Angeles, CA 90095, USA ; lfinnerty@astro.ucla.eduDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USAJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USADivision of Geological & Planetary Sciences, California Institute of Technology , Pasadena, CA 91125, USADepartment of Physics & Astronomy, 430 Portola Plaza, University of California , Los Angeles, CA 90095, USA ; lfinnerty@astro.ucla.edu; Department of Astronomy, California Institute of Technology , Pasadena, CA 91125, USAW. M. Keck Observatory , 65-1120 Mamalahoa Highway, Kamuela, HI 96743, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USA; W. M. Keck Observatory , 65-1120 Mamalahoa Highway, Kamuela, HI 96743, USAW. M. Keck Observatory , 65-1120 Mamalahoa Highway, Kamuela, HI 96743, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USACenter for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University , Evanston, IL 60208, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USA; James C. Wyant College of Optical Sciences, University of Arizona , Meinel Building 1630 E. University Boulevard, Tucson, AZ 85721, USADepartment of Physics & Astronomy, 430 Portola Plaza, University of California , Los Angeles, CA 90095, USA ; lfinnerty@astro.ucla.eduDepartment of Astronomy & Astrophysics, University of California , Santa Cruz, CA 95064, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USA; Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USADepartment of Astronomy & Astrophysics, University of California , Santa Cruz, CA 95064, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USACenter for Astrophysics and Space Sciences, University of California, San Diego , La Jolla, CA 92093, USACenter for Astrophysics and Space Sciences, University of California, San Diego , La Jolla, CA 92093, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USADepartment of Astronomy & Astrophysics, University of California , Santa Cruz, CA 95064, USAPhysics and Astronomy Department, Pomona College , 333 N. College Way, Claremont, CA 91711, USAJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USAEarth and Planets Laboratory, Carnegie Institution for Science , WA, DC 20015, USACenter for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University , Evanston, IL 60208, USADepartment of Astronomy, The Ohio State University , 100 W 18th Avenue, Columbus, OH 43210, USAWe present Keck/KPIC Phase II K -band observations of the nontransiting hot Jupiter HD 143105 b. Using a cross-correlation approach, we make the first detection of the planetary atmosphere at ${K}_{{\rm{p}}}=18{5}_{-13}^{+11}$ km s ^−1 and an inferior conjunction time 2.5 hr before the previously published ephemeris. The retrieved K _p value, in combination with the orbital period, mass of the host star, and lack of transit detection, give an orbital inclination of $7{8}_{-12}^{\circ +2}$ and a true planet mass of 1.23 ± 0.10 M _J . While the equilibrium temperature of HD 143105 b is in the transition regime between noninverted and inverted atmospheres, our analysis strongly prefers a noninverted atmosphere. Retrieval analysis indicates the atmosphere of HD 143105 b is cloud free to approximately 1 bar and dominated by H _2 O absorption ( ${\mathrm{logH}}_{2}{{\rm{O}}}_{\mathrm{MMR}}=-3.{9}_{-0.5}^{+0.8}$ ), placing only an upper limit on the CO abundance ( ${\mathrm{logCO}}_{\mathrm{MMR}}\lt -3.7$ at 95% confidence). We place no constraints on the abundances of Fe, Mg, or ^13 CO. From these abundances, we place an upper limit on the carbon-to-oxygen ratio for HD 143105 b, C/O < 0.2 at 95% confidence, and find the atmospheric metallicity is approximately 0.1 × solar. The low metallicity may be responsible for the lack of a thermal inversion, which at the temperature of HD 143105 b would likely require significant opacity from TiO and/or VO. With these results, HD 143105 b joins the small number of nontransiting hot Jupiters with detected atmospheres.https://doi.org/10.3847/1538-3881/ada1d9Exoplanet atmospheresExoplanet atmospheric compositionHot JupitersHigh resolution spectroscopy |
| spellingShingle | Luke Finnerty Yinzi Xin Jerry W. Xuan Julie Inglis Michael P. Fitzgerald Shubh Agrawal Ashley Baker Randall Bartos Geoffrey A. Blake Benjamin Calvin Sylvain Cetre Jacques-Robert Delorme Greg Doppmann Daniel Echeverri Katelyn Horstman Chih-Chun Hsu Nemanja Jovanovic Joshua Liberman Ronald A. López Emily C. Martin Dimitri Mawet Evan Morris Jacklyn Pezzato-Rovner Jean-Baptiste Ruffio Ben Sappey Tobias Schofield Andrew Skemer Taylor Venenciano J. Kent Wallace Nicole L. Wallack Jason J. Wang Ji Wang True Mass and Atmospheric Composition of the Nontransiting Hot Jupiter HD 143105 b The Astronomical Journal Exoplanet atmospheres Exoplanet atmospheric composition Hot Jupiters High resolution spectroscopy |
| title | True Mass and Atmospheric Composition of the Nontransiting Hot Jupiter HD 143105 b |
| title_full | True Mass and Atmospheric Composition of the Nontransiting Hot Jupiter HD 143105 b |
| title_fullStr | True Mass and Atmospheric Composition of the Nontransiting Hot Jupiter HD 143105 b |
| title_full_unstemmed | True Mass and Atmospheric Composition of the Nontransiting Hot Jupiter HD 143105 b |
| title_short | True Mass and Atmospheric Composition of the Nontransiting Hot Jupiter HD 143105 b |
| title_sort | true mass and atmospheric composition of the nontransiting hot jupiter hd 143105 b |
| topic | Exoplanet atmospheres Exoplanet atmospheric composition Hot Jupiters High resolution spectroscopy |
| url | https://doi.org/10.3847/1538-3881/ada1d9 |
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