JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4
We report the discovery of the first brown dwarf binary system with a Y dwarf primary, WISE J033605.05−014350.4, observed with NIRCam on JWST with the F150W and F480M filters. We employed an empirical point-spread function binary model to identify the companion, located at a projected separation of...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal Letters |
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| Online Access: | https://doi.org/10.3847/2041-8213/acc86d |
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| author | Per Calissendorff Matthew De Furio Michael Meyer Loïc Albert Christian Aganze Mohamad Ali-Dib Daniella C. Bardalez Gagliuffi Frederique Baron Charles A. Beichman Adam J. Burgasser Michael C. Cushing Jacqueline Kelly Faherty Clémence Fontanive Christopher R. Gelino John E. Gizis Alexandra Z. Greenbaum J. Davy Kirkpatrick Sandy K. Leggett Frantz Martinache David Mary Mamadou N’Diaye Benjamin J. S. Pope Thomas Roellig Johannes Sahlmann Anand Sivaramakrishnan Daniel Peter Thorngren Marie Ygouf Thomas Vandal |
| author_facet | Per Calissendorff Matthew De Furio Michael Meyer Loïc Albert Christian Aganze Mohamad Ali-Dib Daniella C. Bardalez Gagliuffi Frederique Baron Charles A. Beichman Adam J. Burgasser Michael C. Cushing Jacqueline Kelly Faherty Clémence Fontanive Christopher R. Gelino John E. Gizis Alexandra Z. Greenbaum J. Davy Kirkpatrick Sandy K. Leggett Frantz Martinache David Mary Mamadou N’Diaye Benjamin J. S. Pope Thomas Roellig Johannes Sahlmann Anand Sivaramakrishnan Daniel Peter Thorngren Marie Ygouf Thomas Vandal |
| author_sort | Per Calissendorff |
| collection | DOAJ |
| description | We report the discovery of the first brown dwarf binary system with a Y dwarf primary, WISE J033605.05−014350.4, observed with NIRCam on JWST with the F150W and F480M filters. We employed an empirical point-spread function binary model to identify the companion, located at a projected separation of 0.″084, position angle of 295°, and with contrasts of 2.8 and 1.8 mag in F150W and F480M, respectively. At a distance of 10 pc based on its Spitzer parallax, and assuming a random inclination distribution, the physical separation is approximately 1 au. Evolutionary models predict for that an age of 1–5 Gyr, the companion mass is about 4–12.5 Jupiter masses around the 7.5–20 Jupiter mass primary, corresponding to a companion-to-host mass fraction of q = 0.61 ± 0.05. Under the assumption of a Keplerian orbit the period for this extreme binary is in the range of 5–9 yr. The system joins a small but growing sample of ultracool dwarf binaries with effective temperatures of a few hundreds of Kelvin. Brown dwarf binaries lie at the nexus of importance for understanding the formation mechanisms of these elusive objects, as they allow us to investigate whether the companions formed as stars or as planets in a disk around the primary. |
| first_indexed | 2024-03-12T04:08:14Z |
| format | Article |
| id | doaj.art-c51c808def4c4b5ca91d75d5a56fc858 |
| institution | Directory Open Access Journal |
| issn | 2041-8205 |
| language | English |
| last_indexed | 2024-03-12T04:08:14Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Letters |
| spelling | doaj.art-c51c808def4c4b5ca91d75d5a56fc8582023-09-03T11:11:05ZengIOP PublishingThe Astrophysical Journal Letters2041-82052023-01-019472L3010.3847/2041-8213/acc86dJWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4Per Calissendorff0https://orcid.org/0000-0002-5335-0616Matthew De Furio1https://orcid.org/0000-0003-1863-4960Michael Meyer2https://orcid.org/0000-0003-1227-3084Loïc Albert3https://orcid.org/0000-0003-0475-9375Christian Aganze4https://orcid.org/0000-0003-2094-9128Mohamad Ali-Dib5https://orcid.org/0000-0002-6633-376XDaniella C. Bardalez Gagliuffi6https://orcid.org/0000-0001-8170-7072Frederique Baron7https://orcid.org/0000-0002-5074-1128Charles A. Beichman8https://orcid.org/0000-0002-5627-5471Adam J. Burgasser9https://orcid.org/0000-0002-6523-9536Michael C. Cushing10https://orcid.org/0000-0001-7780-3352Jacqueline Kelly Faherty11https://orcid.org/0000-0001-6251-0573Clémence Fontanive12https://orcid.org/0000-0002-2428-9932Christopher R. Gelino13https://orcid.org/0000-0001-5072-4574John E. Gizis14https://orcid.org/0000-0002-8916-1972Alexandra Z. Greenbaum15https://orcid.org/0000-0002-7162-8036J. Davy Kirkpatrick16https://orcid.org/0000-0003-4269-260XSandy K. Leggett17https://orcid.org/0000-0002-3681-2989Frantz Martinache18https://orcid.org/0000-0003-1180-4138David Mary19Mamadou N’Diaye20https://orcid.org/0000-0002-1721-3294Benjamin J. S. Pope21https://orcid.org/0000-0003-2595-9114Thomas Roellig22https://orcid.org/0000-0002-6730-5410Johannes Sahlmann23https://orcid.org/0000-0001-9525-3673Anand Sivaramakrishnan24https://orcid.org/0000-0003-1251-4124Daniel Peter Thorngren25https://orcid.org/0000-0002-5113-8558Marie Ygouf26https://orcid.org/0000-0001-7591-2731Thomas Vandal27https://orcid.org/0000-0002-5922-8267Department of Astronomy, University of Michigan , Ann Arbor, MI 48109, USA ; percal@umich.eduDepartment of Astronomy, University of Michigan , Ann Arbor, MI 48109, USA ; percal@umich.eduDepartment of Astronomy, University of Michigan , Ann Arbor, MI 48109, USA ; percal@umich.eduDépartement de Physique and Observatoire du Mont-Mégantic, Université de Montréal , C.P. 6128, Succ. Centre-ville, Montréal, QC H3C 3J7, Canada; Institut Trottier de Recherche sur les exoplanètes, Université de Montréal , Québec, CanadaUniversity of California, San Diego , La Jolla, CA, USAInstitut Trottier de Recherche sur les exoplanètes, Université de Montréal , Québec, Canada; Center for Astro, Particle and Planetary Physics (CAP3), New York University Abu Dhabi , UAEDepartment of Physics & Astronomy, Amherst College , 25 East Drive, Amherst, MA 01003, USADépartement de Physique and Observatoire du Mont-Mégantic, Université de Montréal , C.P. 6128, Succ. Centre-ville, Montréal, QC H3C 3J7, Canada; Institut Trottier de Recherche sur les exoplanètes, Université de Montréal , Québec, CanadaJet Propulsion Laboratory , Pasadena, CA, USAUniversity of California, San Diego , La Jolla, CA, USARitter Astrophysical Research Center, Department of Physics and Astronomy, University of Toledo , 2801 W. Bancroft Street, Toledo, OH 43606, USAAstrophysics Department, American Museum of Natural History , 79th Street at Central Park West, New York, NY 10024, USADépartement de Physique and Observatoire du Mont-Mégantic, Université de Montréal , C.P. 6128, Succ. Centre-ville, Montréal, QC H3C 3J7, Canada; Institut Trottier de Recherche sur les exoplanètes, Université de Montréal , Québec, CanadaCalifornia Institute of Technology , Pasadena, CA, USAUniversity of Delaware , Newark, DE, USAIPAC, Mail Code 100-22, Caltech , 1200 E. California Boulevard, Pasadena, CA 91125, USACalifornia Institute of Technology , Pasadena, CA, USANOIRLab —Gemini North, Hilo, HI, USAUniversité Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, FranceUniversité Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, FranceUniversité Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, FranceSchool of Mathematics and Physics, The University of Queensland , St Lucia, QLD 4072, Australia; Centre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, AustraliaNASA Ames Research Center , MS 245-6, Moffett Field, CA 94035, USARHEA Group for the European Space Agency (ESA), European Space Astronomy Centre (ESAC) , Camino Bajo del Castillo s/n, E-28692 Villanueva de la Cañada, Madrid, SpainAstrophysics Department, American Museum of Natural History , 79th Street at Central Park West, New York, NY 10024, USA; Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA; Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USAUniversité de Montréal , Québec, CanadaJet Propulsion Laboratory , Pasadena, CA, USADépartement de Physique and Observatoire du Mont-Mégantic, Université de Montréal , C.P. 6128, Succ. Centre-ville, Montréal, QC H3C 3J7, Canada; Institut Trottier de Recherche sur les exoplanètes, Université de Montréal , Québec, CanadaWe report the discovery of the first brown dwarf binary system with a Y dwarf primary, WISE J033605.05−014350.4, observed with NIRCam on JWST with the F150W and F480M filters. We employed an empirical point-spread function binary model to identify the companion, located at a projected separation of 0.″084, position angle of 295°, and with contrasts of 2.8 and 1.8 mag in F150W and F480M, respectively. At a distance of 10 pc based on its Spitzer parallax, and assuming a random inclination distribution, the physical separation is approximately 1 au. Evolutionary models predict for that an age of 1–5 Gyr, the companion mass is about 4–12.5 Jupiter masses around the 7.5–20 Jupiter mass primary, corresponding to a companion-to-host mass fraction of q = 0.61 ± 0.05. Under the assumption of a Keplerian orbit the period for this extreme binary is in the range of 5–9 yr. The system joins a small but growing sample of ultracool dwarf binaries with effective temperatures of a few hundreds of Kelvin. Brown dwarf binaries lie at the nexus of importance for understanding the formation mechanisms of these elusive objects, as they allow us to investigate whether the companions formed as stars or as planets in a disk around the primary.https://doi.org/10.3847/2041-8213/acc86dBrown dwarfsY dwarfsJames Webb Space Telescope |
| spellingShingle | Per Calissendorff Matthew De Furio Michael Meyer Loïc Albert Christian Aganze Mohamad Ali-Dib Daniella C. Bardalez Gagliuffi Frederique Baron Charles A. Beichman Adam J. Burgasser Michael C. Cushing Jacqueline Kelly Faherty Clémence Fontanive Christopher R. Gelino John E. Gizis Alexandra Z. Greenbaum J. Davy Kirkpatrick Sandy K. Leggett Frantz Martinache David Mary Mamadou N’Diaye Benjamin J. S. Pope Thomas Roellig Johannes Sahlmann Anand Sivaramakrishnan Daniel Peter Thorngren Marie Ygouf Thomas Vandal JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4 The Astrophysical Journal Letters Brown dwarfs Y dwarfs James Webb Space Telescope |
| title | JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4 |
| title_full | JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4 |
| title_fullStr | JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4 |
| title_full_unstemmed | JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4 |
| title_short | JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4 |
| title_sort | jwst nircam discovery of the first y y brown dwarf binary wise j033605 05 014350 4 |
| topic | Brown dwarfs Y dwarfs James Webb Space Telescope |
| url | https://doi.org/10.3847/2041-8213/acc86d |
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