Metallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet Candidates
We collected near-infrared spectra of 65 cool stars with the NASA Infrared Telescope Facility and analyzed them to calculate accurate metallicities and stellar parameters. The sample of 55 M dwarfs and 10 K dwarfs includes 25 systems with confirmed planets and 27 systems with planet candidates ident...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal Supplement Series |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4365/ad2c0c |
| _version_ | 1797236942605123584 |
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| author | Rebecca Gore Steven Giacalone Courtney D. Dressing Emma V. Turtelboom Ashley Schroeder Charles D. Fortenbach Kevin K. Hardegree-Ullman Jon K. Zink Andrew W. Mayo Joshua E. Schlieder Jessie L. Christiansen |
| author_facet | Rebecca Gore Steven Giacalone Courtney D. Dressing Emma V. Turtelboom Ashley Schroeder Charles D. Fortenbach Kevin K. Hardegree-Ullman Jon K. Zink Andrew W. Mayo Joshua E. Schlieder Jessie L. Christiansen |
| author_sort | Rebecca Gore |
| collection | DOAJ |
| description | We collected near-infrared spectra of 65 cool stars with the NASA Infrared Telescope Facility and analyzed them to calculate accurate metallicities and stellar parameters. The sample of 55 M dwarfs and 10 K dwarfs includes 25 systems with confirmed planets and 27 systems with planet candidates identified by the K2 and TESS missions. Three of the 25 confirmed planetary systems host multiple confirmed planets and two of the 27 planet candidate systems host multiple planet candidates. Using the new stellar parameters, we refit the K2 and TESS light curves to calculate updated planet properties. In general, our updated stellar properties are more precise than those previously reported and our updated planet properties agree well with those in the literature. Lastly, we briefly examine the relationship between stellar mass, stellar metallicity, and planetary system properties for targets in our sample and for previously characterized planet-hosting low-mass stars. We provide our spectra, stellar parameters, and new planetary fits to the community, expanding the sample available with which to investigate correlations between stellar and planetary properties for low-mass stars. |
| first_indexed | 2024-04-24T17:11:52Z |
| format | Article |
| id | doaj.art-a5d01ec8453e4ea8a0c7370fcf67d5cb |
| institution | Directory Open Access Journal |
| issn | 0067-0049 |
| language | English |
| last_indexed | 2024-04-24T17:11:52Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj.art-a5d01ec8453e4ea8a0c7370fcf67d5cb2024-03-28T09:53:08ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492024-01-0127124810.3847/1538-4365/ad2c0cMetallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet CandidatesRebecca Gore0https://orcid.org/0009-0000-7274-7523Steven Giacalone1https://orcid.org/0000-0002-8965-3969Courtney D. Dressing2https://orcid.org/0000-0001-8189-0233Emma V. Turtelboom3https://orcid.org/0000-0002-1845-2617Ashley Schroeder4Charles D. Fortenbach5https://orcid.org/0000-0001-5286-639XKevin K. Hardegree-Ullman6https://orcid.org/0000-0003-3702-0382Jon K. Zink7https://orcid.org/0000-0003-1848-2063Andrew W. Mayo8https://orcid.org/0000-0002-7216-2135Joshua E. Schlieder9https://orcid.org/0000-0001-5347-7062Jessie L. Christiansen10https://orcid.org/0000-0002-8035-4778Department of Astronomy, University of California Berkeley , Berkeley, CA 94720, USA ; giacalone@astro.caltech.edu; Bay Area Environmental Research Institute , Moffett Field, CA 94035, USA; NASA Ames Research Center , Moffett Field, CA 94035, USADepartment of Astronomy, University of California Berkeley , Berkeley, CA 94720, USA ; giacalone@astro.caltech.edu; Department of Astronomy, California Institute of Technology , Pasadena, CA 91125, USADepartment of Astronomy, University of California Berkeley , Berkeley, CA 94720, USA ; giacalone@astro.caltech.eduDepartment of Astronomy, University of California Berkeley , Berkeley, CA 94720, USA ; giacalone@astro.caltech.eduDepartment of Astronomy, University of California Berkeley , Berkeley, CA 94720, USA ; giacalone@astro.caltech.edu; AstroCamp , Idyllwild, CA 92549, USADepartment of Physics and Astronomy, San Francisco State University , San Francisco, CA 94132, USASteward Observatory, The University of Arizona , Tucson, AZ 85721, USADepartment of Astronomy, California Institute of Technology , Pasadena, CA 91125, USADepartment of Astronomy, University of California Berkeley , Berkeley, CA 94720, USA ; giacalone@astro.caltech.edu; Centre for Star and Planet Formation, Natural History Museum of Denmark & Niels Bohr Institute, University of Copenhagen , Øster Voldgade 5-7, DK-1350 Copenhagen K., DenmarkNASA Goddard Space Flight Center , 8800 Greenbelt Rd., Greenbelt, MD 20771, USANASA Exoplanet Science Institute , IPAC, MS 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USAWe collected near-infrared spectra of 65 cool stars with the NASA Infrared Telescope Facility and analyzed them to calculate accurate metallicities and stellar parameters. The sample of 55 M dwarfs and 10 K dwarfs includes 25 systems with confirmed planets and 27 systems with planet candidates identified by the K2 and TESS missions. Three of the 25 confirmed planetary systems host multiple confirmed planets and two of the 27 planet candidate systems host multiple planet candidates. Using the new stellar parameters, we refit the K2 and TESS light curves to calculate updated planet properties. In general, our updated stellar properties are more precise than those previously reported and our updated planet properties agree well with those in the literature. Lastly, we briefly examine the relationship between stellar mass, stellar metallicity, and planetary system properties for targets in our sample and for previously characterized planet-hosting low-mass stars. We provide our spectra, stellar parameters, and new planetary fits to the community, expanding the sample available with which to investigate correlations between stellar and planetary properties for low-mass stars.https://doi.org/10.3847/1538-4365/ad2c0cExoplanetsExoplanet systemsStellar propertiesM dwarf starsLow mass starsSpectroscopy |
| spellingShingle | Rebecca Gore Steven Giacalone Courtney D. Dressing Emma V. Turtelboom Ashley Schroeder Charles D. Fortenbach Kevin K. Hardegree-Ullman Jon K. Zink Andrew W. Mayo Joshua E. Schlieder Jessie L. Christiansen Metallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet Candidates The Astrophysical Journal Supplement Series Exoplanets Exoplanet systems Stellar properties M dwarf stars Low mass stars Spectroscopy |
| title | Metallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet Candidates |
| title_full | Metallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet Candidates |
| title_fullStr | Metallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet Candidates |
| title_full_unstemmed | Metallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet Candidates |
| title_short | Metallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet Candidates |
| title_sort | metallicities and refined stellar parameters for 52 cool dwarfs with transiting planets and planet candidates |
| topic | Exoplanets Exoplanet systems Stellar properties M dwarf stars Low mass stars Spectroscopy |
| url | https://doi.org/10.3847/1538-4365/ad2c0c |
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