A 16 Myr Super-Neptune in Upper Centaurus Lupus and a Preliminary Survey of Transiting Planets in Sco-Cen with TESS
Measuring the properties of planets younger than about 50 Myr helps to test different planetary formation and evolution models. NASA’s Transiting Exoplanet Survey Satellite (TESS) has observed nearly the entire sky, including a wide range of star-forming regions and young stellar clusters, expanding...
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2025-01-01
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| author | Sydney Vach George Zhou Andrew W. Mann Madyson G. Barber Tyler R. Fairnington Chelsea X. Huang James G. Rogers Luke G. Bouma Joachim Krüger Duncan Wright Annabelle E. Niblett Jack M. Nelson Samuel N. Quinn David W. Latham Allyson Bieryla Karen A. Collins Michelle Kunimoto Cristilyn N. Watkins Richard P. Schwarz Kevin I. Collins Ramotholo Sefako Keith Horne Steve B. Howell Catherine A. Clark Colin Littlefield Jessie L. Christiansen Zahra Essack Joshua N. Winn |
| author_facet | Sydney Vach George Zhou Andrew W. Mann Madyson G. Barber Tyler R. Fairnington Chelsea X. Huang James G. Rogers Luke G. Bouma Joachim Krüger Duncan Wright Annabelle E. Niblett Jack M. Nelson Samuel N. Quinn David W. Latham Allyson Bieryla Karen A. Collins Michelle Kunimoto Cristilyn N. Watkins Richard P. Schwarz Kevin I. Collins Ramotholo Sefako Keith Horne Steve B. Howell Catherine A. Clark Colin Littlefield Jessie L. Christiansen Zahra Essack Joshua N. Winn |
| author_sort | Sydney Vach |
| collection | DOAJ |
| description | Measuring the properties of planets younger than about 50 Myr helps to test different planetary formation and evolution models. NASA’s Transiting Exoplanet Survey Satellite (TESS) has observed nearly the entire sky, including a wide range of star-forming regions and young stellar clusters, expanding our census of the newborn planet population. In this work, we present the discovery of the TIC 88785435 planetary system located in the Upper Centaurus Lupus (UCL) region of the Scorpius Centaurus OB association (Sco-Cen) and a preliminary survey of the planet population within Sco-Cen. TIC 88785435 is a pre-main-sequence, K7V dwarf ( M _⋆ = 0.72 M _⊙ , R _⋆ = 0.91 R _⊙ , T _eff = 3998 K, V = 11.7 mag) located within the bounds of UCL. We investigate the distribution of rotation periods measured from the TESS long-cadence data and the H α and Li abundances from the spectra of TIC 88785435. TESS long-cadence data reveal that TIC 88785435 hosts a transiting super-Neptune ( R _b = 5.03 R _⊕ , P = 10.51 days), TIC 88785435b. Ground-based follow-up validates the planetary nature of TIC 88785435b. Using the TESS data, we perform a preliminary survey to investigate how TIC 88785435b compares to the population of newly born planets located within Sco-Cen. |
| format | Article |
| id | doaj-art-491a314d476f4cfab5ab7e0e95e17427 |
| institution | Kabale University |
| issn | 1538-3881 |
| language | English |
| publishDate | 2025-01-01 |
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| series | The Astronomical Journal |
| spelling | doaj-art-491a314d476f4cfab5ab7e0e95e174272025-08-20T03:34:45ZengIOP PublishingThe Astronomical Journal1538-38812025-01-01170213110.3847/1538-3881/ade67fA 16 Myr Super-Neptune in Upper Centaurus Lupus and a Preliminary Survey of Transiting Planets in Sco-Cen with TESSSydney Vach0https://orcid.org/0000-0001-9158-9276George Zhou1https://orcid.org/0000-0002-4891-3517Andrew W. Mann2https://orcid.org/0000-0003-3654-1602Madyson G. Barber3https://orcid.org/0000-0002-8399-472XTyler R. Fairnington4https://orcid.org/0000-0002-0692-7822Chelsea X. Huang5https://orcid.org/0000-0003-0918-7484James G. Rogers6https://orcid.org/0000-0001-7615-6798Luke G. Bouma7https://orcid.org/0000-0002-0514-5538Joachim Krüger8https://orcid.org/0009-0003-3841-5383Duncan Wright9Annabelle E. Niblett10https://orcid.org/0009-0005-2363-9274Jack M. Nelson11https://orcid.org/0009-0009-4540-4803Samuel N. Quinn12https://orcid.org/0000-0002-8964-8377David W. Latham13https://orcid.org/0000-0001-9911-7388Allyson Bieryla14https://orcid.org/0000-0001-6637-5401Karen A. Collins15https://orcid.org/0000-0001-6588-9574Michelle Kunimoto16https://orcid.org/0000-0001-9269-8060Cristilyn N. Watkins17https://orcid.org/0000-0001-8621-6731Richard P. Schwarz18https://orcid.org/0000-0001-8227-1020Kevin I. Collins19https://orcid.org/0000-0003-2781-3207Ramotholo Sefako20https://orcid.org/0000-0003-3904-6754Keith Horne21https://orcid.org/0000-0003-1728-0304Steve B. Howell22https://orcid.org/0000-0002-2532-2853Catherine A. Clark23https://orcid.org/0000-0002-2361-5812Colin Littlefield24https://orcid.org/0000-0001-7746-5795Jessie L. Christiansen25https://orcid.org/0000-0002-8035-4778Zahra Essack26https://orcid.org/0000-0002-2482-0180Joshua N. Winn27https://orcid.org/0000-0002-4265-047XCentre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, Australia ; sydney.vach@unisq.edu.auCentre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, Australia ; sydney.vach@unisq.edu.auDepartment of Physics and Astronomy, The University of North Carolina at Chapel Hill , Chapel Hill, NC 27599, USADepartment of Physics and Astronomy, The University of North Carolina at Chapel Hill , Chapel Hill, NC 27599, USACentre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, Australia ; sydney.vach@unisq.edu.auCentre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, Australia ; sydney.vach@unisq.edu.auInstitute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UKObservatories of the Carnegie Institution for Science , Pasadena, CA 91101, USACentre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, Australia ; sydney.vach@unisq.edu.auCentre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, Australia ; sydney.vach@unisq.edu.auDepartment of Physics and Astronomy , Dartmouth College, Hanover, NH 03755, USADepartment of Physics and Astronomy , Dartmouth College, Hanover, NH 03755, USACenter for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USACenter for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USACentre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, Australia ; sydney.vach@unisq.edu.au; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USACenter for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USADepartment of Physics and Astronomy, University of British Columbia , 6224 Agricultural Road, Vancouver, BC V6T 1Z1, CanadaCenter for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USACenter for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USAGeorge Mason University , 4400 University Drive, Fairfax, VA 22030, USASouth African Astronomical Observatory , P.O. Box 9, Observatory, Cape Town 7935, South AfricaSUPA Physics and Astronomy, University of St Andrews , Fife, KY16 9SS Scotland, UKNASA Ames Research Center , Moffett Field, CA 94035, USAJet Propulsion Laboratory, California Institute of Technology , Pasadena, CA 91109, USA; Caltech/IPAC—NASA Exoplanet Science Institute , 1200 E. California Avenue, Pasadena, CA 91125, USABay Area Environmental Research Institute , Moffett Field, CA 94035, USACaltech/IPAC—NASA Exoplanet Science Institute , 1200 E. California Avenue, Pasadena, CA 91125, USADepartment of Physics and Astronomy, The University of New Mexico , 210 Yale Boulevard NE, Albuquerque, NM 87106, USADepartment of Astrophysical Sciences, Princeton University , 4 Ivy Lane, Princeton, NJ 08544, USAMeasuring the properties of planets younger than about 50 Myr helps to test different planetary formation and evolution models. NASA’s Transiting Exoplanet Survey Satellite (TESS) has observed nearly the entire sky, including a wide range of star-forming regions and young stellar clusters, expanding our census of the newborn planet population. In this work, we present the discovery of the TIC 88785435 planetary system located in the Upper Centaurus Lupus (UCL) region of the Scorpius Centaurus OB association (Sco-Cen) and a preliminary survey of the planet population within Sco-Cen. TIC 88785435 is a pre-main-sequence, K7V dwarf ( M _⋆ = 0.72 M _⊙ , R _⋆ = 0.91 R _⊙ , T _eff = 3998 K, V = 11.7 mag) located within the bounds of UCL. We investigate the distribution of rotation periods measured from the TESS long-cadence data and the H α and Li abundances from the spectra of TIC 88785435. TESS long-cadence data reveal that TIC 88785435 hosts a transiting super-Neptune ( R _b = 5.03 R _⊕ , P = 10.51 days), TIC 88785435b. Ground-based follow-up validates the planetary nature of TIC 88785435b. Using the TESS data, we perform a preliminary survey to investigate how TIC 88785435b compares to the population of newly born planets located within Sco-Cen.https://doi.org/10.3847/1538-3881/ade67fExoplanetsExoplanet astronomyYoung star clusters |
| spellingShingle | Sydney Vach George Zhou Andrew W. Mann Madyson G. Barber Tyler R. Fairnington Chelsea X. Huang James G. Rogers Luke G. Bouma Joachim Krüger Duncan Wright Annabelle E. Niblett Jack M. Nelson Samuel N. Quinn David W. Latham Allyson Bieryla Karen A. Collins Michelle Kunimoto Cristilyn N. Watkins Richard P. Schwarz Kevin I. Collins Ramotholo Sefako Keith Horne Steve B. Howell Catherine A. Clark Colin Littlefield Jessie L. Christiansen Zahra Essack Joshua N. Winn A 16 Myr Super-Neptune in Upper Centaurus Lupus and a Preliminary Survey of Transiting Planets in Sco-Cen with TESS The Astronomical Journal Exoplanets Exoplanet astronomy Young star clusters |
| title | A 16 Myr Super-Neptune in Upper Centaurus Lupus and a Preliminary Survey of Transiting Planets in Sco-Cen with TESS |
| title_full | A 16 Myr Super-Neptune in Upper Centaurus Lupus and a Preliminary Survey of Transiting Planets in Sco-Cen with TESS |
| title_fullStr | A 16 Myr Super-Neptune in Upper Centaurus Lupus and a Preliminary Survey of Transiting Planets in Sco-Cen with TESS |
| title_full_unstemmed | A 16 Myr Super-Neptune in Upper Centaurus Lupus and a Preliminary Survey of Transiting Planets in Sco-Cen with TESS |
| title_short | A 16 Myr Super-Neptune in Upper Centaurus Lupus and a Preliminary Survey of Transiting Planets in Sco-Cen with TESS |
| title_sort | 16 myr super neptune in upper centaurus lupus and a preliminary survey of transiting planets in sco cen with tess |
| topic | Exoplanets Exoplanet astronomy Young star clusters |
| url | https://doi.org/10.3847/1538-3881/ade67f |
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