JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05-014350.4

Article

Pope, Benjamin J. S.. 2023. "JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05-014350.4." The Astrophysical Journal Letters. 947 (2). https://doi.org/10.3847/2041-8213/acc86d
Article Title

JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05-014350.4

ERA Journal ID45091
Article CategoryArticle
AuthorsPope, Benjamin J. S.
Journal TitleThe Astrophysical Journal Letters
Journal Citation947 (2)
Article NumberL30
Number of Pages6
Year2023
PublisherIOP Publishing
ISSN2041-8205
2041-8213
Digital Object Identifier (DOI)https://doi.org/10.3847/2041-8213/acc86d
Web Address (URL)https://iopscience.iop.org/article/10.3847/2041-8213/acc86d/meta
AbstractWe 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. © 2023. The Author(s). Published by the American Astronomical Society.
KeywordsBrown dwarfs; Y dwarfs; James Webb Space Telescope
ANZSRC Field of Research 20205101. Astronomical sciences
Byline AffiliationsCentre for Astrophysics
University of Queensland
Permalink -

https://research.usq.edu.au/item/z2573/jwst-nircam-discovery-of-the-first-y-y-brown-dwarf-binary-wise-j033605-05-014350-4

Log in to edit

Download files

Published Version
Calissendorff_2023_ApJL_947_L30.pdf
License: CC BY 4.0
File access level: Anyone

  • 31
    total views
  • 25
    total downloads
  • 2
    views this month
  • 1
    downloads this month

Export as

Related outputs

Coronagraphic Data Post-processing Using Projections on Instrumental Modes
Xin, Yinzi, Pueyo, Laurent, Laugier, Romain, Pogorelyuk, Leonid, Douglas, Ewan S., Pope, Benjamin J. S. and Cahoy, K.L.. 2024. "Coronagraphic Data Post-processing Using Projections on Instrumental Modes." The Astrophysical Journal: an international review of astronomy and astronomical physics. 963 (2). https://doi.org/10.3847/1538-4357/ad1879
Phenomenology and periodicity of radio emission from the stellar system AU Microscopii
Bloot, S., Callingham, J. R., Vedantham, H. K., Kavanagh, R. D,, Pope, B. J. S., Climent, J. B., Guirado, J. C., Peña-Moñino, L. and Pérez-Torres, M.. 2024. "Phenomenology and periodicity of radio emission from the stellar system AU Microscopii." Astronomy and Astrophysics: a European journal. 682. https://doi.org/10.1051/0004-6361/202348065
The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope. IV. Aperture Masking Interferometry
Sivaramakrishnan, Anand, Tuthill, Peter, Lloyd, James P., Greenbaum, Alexandra Z., Thatte, Deepashri, Cooper, Rachel A., Vandal, Thomas, Kammerer, Jens, Sanchez-Bermudez, Joel and Pope, Benjamin J. S.. 2023. "The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope. IV. Aperture Masking Interferometry." Publications of the Astronomical Society of the Pacific. 135 (1043). https://doi.org/10.1088/1538-3873/acaebd
Differentiable optics with a Lux: I - deep calibration of flat field and phase retrieval with automatic differentiation
Desdoigts, Louis, Pope, Benjamin J. S., Dennis, Jordan and Tuthill, Peter G.. 2023. "Differentiable optics with a Lux: I - deep calibration of flat field and phase retrieval with automatic differentiation." Journal of Astronomical Telescopes, Instruments, and Systems. 9 (2). https://doi.org/10.1117/1.JATIS.9.2.028007
V-LoTSS: The circularly polarised LOFAR Two-metre Sky Survey
Callingham J.R., Shimwell T.W., Vedantham H.K., Bassa C.G., O Sullivan S.P., Yiu T.W.H., Bloot S., Best P.N., Hardcastle M.J., Haverkorn M., Kavanagh R.D., Lamy L., Pope B.J.S., Röttgering H.J.A., Schwarz D.J., Tasse C., Van Weeren R.J., White G.J., Zarka P., Bomans D.J., Bonafede A., Bonato M., Botteon A., Bruggen M., Chyzy K.T., Drabent A., Emig K.L., Gloudemans A.J., Gürkan G., Hajduk M., Hoang D.N., Hoeft M., Iacobelli M., Kadler M., Kunert-Bajraszewska M., Mingo B., Morabito L.K., Nair D.G., Pérez-Torres M., Ray T.P., Riseley C.J., Rowlinson A., Shulevski A., Sweijen F., Timmerman R., Vaccari M., Zheng J., Callingham, J.R., Shimwell, T.W., Vedantham, H.K., Bassa, C.G., O’Sullivan, S.P., Yiu, T.W., Bloot, S., Best, P.N., Hardcastle, M.J., Haverkorn, M., Kavanagh, R.D., Lamy, L., Pope, B. J. S., Röttgering, H., Schwarz, D.J., Tasse, C., van Werren, R.J., White, G.J., ..., Hajduk, M.. 2023. "V-LoTSS: The circularly polarised LOFAR Two-metre Sky Survey." Astronomy and Astrophysics: a European journal. 670. https://doi.org/10.1051/0004-6361/202245567
The Kepler Smear Campaign: Light Curves for 102 Very Bright Stars
Pope, Benjamin J. S., Davies, Guy R., Hawkins, Keith, White, Timothy R., Stokholm, Amalie, Bieryla, Allyson, Latham, David W., Lucey, Madeline, Aerts, Conny, Aigrain, Suzanne, Antoci, Victoria, Bedding, Timothy R., Bowman, Dominic M., Caldwell, Douglas A., Chontos, Ashley, Esquerdo, Gilbert A., Huber, Daniel, Jofre, Paula, Murphy, Simon J., ..., Yu, Jie. 2019. "The Kepler Smear Campaign: Light Curves for 102 Very Bright Stars." Astrophysical Journal Supplement Series. 244 (1), pp. 1-19. https://doi.org/10.3847/1538-4365/ab2c04
Maelstrom: A Python package for identifying companions to pulsating stars from their light travel time variations
Hey, Daniel R., Murphy, Simon J., Foreman-Mackey, Daniel, Bedding, Timothy R., Pope, Benjamin J. S. and Hogg, David W.. 2020. "Maelstrom: A Python package for identifying companions to pulsating stars from their light travel time variations." Journal of Open Source Software. 5 (51), pp. 1-3. https://doi.org/10.21105/joss.02125
Forward Modeling the Orbits of Companions to Pulsating Stars from Their Light Travel Time Variations
Hey, Daniel R., Murphy, Simon J., Foreman-Mackey, Daniel, Bedding, Timothy R., Pope, Benjamin J. S. and Hogg, David W.. 2020. "Forward Modeling the Orbits of Companions to Pulsating Stars from Their Light Travel Time Variations." The Astronomical Journal. 159 (5), pp. 1-11. https://doi.org/10.3847/1538-3881/ab7d38
A Search for Transits among the Delta Scuti Variables in Kepler
Hey, Daniel R., Montet, Benjamin T., Pope, Benjamin J. S., Murphy, Simon J. and Bedding, Timothy R.. 2021. "A Search for Transits among the Delta Scuti Variables in Kepler." The Astronomical Journal. 162 (5), p. 204. https://doi.org/10.3847/1538-3881/ac1b9b
Kernel Phase and Coronagraphy with Automatic Differentiation
Pope, Benjamin J. S., Pueyo, Laurent, Xin, Yinzi and Tuthill, Peter G.. 2021. "Kernel Phase and Coronagraphy with Automatic Differentiation." The Astrophysical Journal: an international review of astronomy and astronomical physics. 907 (1), pp. 1-14. https://doi.org/10.3847/1538-4357/abcb00
The TESS View of LOFAR Radio-emitting Stars
Pope, Benjamin J. S., Callingham, Joseph R., Feinstein, Adina D., Gunther, Maximilian N., Vedantham, Harish K., Ansdell, Megan and Shimwell, Timothy W.. 2021. "The TESS View of LOFAR Radio-emitting Stars." The Astrophysical Journal Letters. 919 (1), pp. 1-8. https://doi.org/10.3847/2041-8213/ac230c
Phase retrieval and design with automatic differentiation: tutorial
Wong, Alison, Pope, Benjamin, Desdoigts, Louis, Tuthill, Peter, Norris, Barnaby and Betters, Chris. 2021. "Phase retrieval and design with automatic differentiation: tutorial." Journal of the Optical Society of America B: Optical Physics. 38 (9), pp. 2465-2478. https://doi.org/10.1364/JOSAB.432723
Beyond the Kepler/K2 bright limit: variability in the seven brightest members of the Pleiades
White, T. R., Pope, B. J. S., Antoci, V., Papics, P. I., Aerts, C., Gies, D. R., Gordon, K., Huber, D., Schaefer, G. H., Aigrain, S., Albrecht, S., Barclay, T., Barentsen, G., Beck, P. G., Bedding, T. R., Andersen, M. Fredslund, Grundahl, F., Howell, S. B., Ireland, M. J., ..., Tuthill, P. G.. 2017. "Beyond the Kepler/K2 bright limit: variability in the seven brightest members of the Pleiades." Monthly Notices of the Royal Astronomical Society. 471 (3), pp. 2882-2901. https://doi.org/10.1093/mnras/stx1050
maelstrom: Forward modeling of pulsating stars in binaries
Hey, Daniel R., Murphy, Simon J., Foreman-Mackey, Dan, Bedding, Timothy R., Pope, Benjamin J.S. and Hogg, David W.. 2022. maelstrom: Forward modeling of pulsating stars in binaries . Astrophysics Source Code Library.
Modelling cosmic radiation events in the tree-ring radiocarbon record
Zhang, Qingyuan, Sharma, Utkarsh, Dennis, Jordan A. Dennis, Scifo, Andrea, Kuitems, Margot, Büntgen, Ulf, Owens, Mathew J., Dee, Michael W. and Pope, Benjamin J. S.. 2022. "Modelling cosmic radiation events in the tree-ring radiocarbon record." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 478 (2266). https://doi.org/10.1098/rspa.2022.0497
Photometry of very bright stars with Kepler and K2 smear data
Pope, B. J. S., White, T. R., Huber, D., Murphy, S. J., Bedding, T. R., Caldwell, D. A., Sarai, A., Aigrain, S. and Barclay, T.. 2015. "Photometry of very bright stars with Kepler and K2 smear data." Monthly Notices of the Royal Astronomical Society. 455 (1), pp. L36-L40. https://doi.org/10.1093/mnrasl/slv143