W0830: an extremely cold, missing-link planetary-mass object at the low-mass end of the IMF
Creators
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Bardalez Gagliuffi, Daniella1
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Faherty, Jacqueline1
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Schneider, Adam2
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Meisner, Aaron3
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Caselden, Dan4
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Colin, Guillaume5
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Goodman, Sam5
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Kirkpatrick, Davy6
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Kuchner, Marc7
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Gagne, Jonathan8
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Logsdon, Sarah3
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Burgasser, Adam9
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Allers, Katelyn10
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Debes, John11
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Wisniewski, John12
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Rothermich, Austin13
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Andersen, Nikolaj14
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Thevenot, Melina5
- Walla, Jim5
- 1. American Museum of Natural History
- 2. United States Naval Observatory
- 3. NSF's National Optical-Infrared Astronomy Research Laboratory
- 4. Gigamon Applied Threat Research
- 5. Backyard Worlds: Planet 9
- 6. California Institute of Technology/Infrared Processing and Analysis Center
- 7. NASA Goddard Space Flight Center,
- 8. Universite de Montreal
- 9. University of California, San Diego
- 10. Bucknell University
- 11. Space Telescope Science Institute
- 12. University of Oklahoma
- 13. University Of Central Florida
- 14. Kolding Hospital
Description
Here we present an extremely cold, planetary-mass brown dwarf which bridges the temperature gap between the warmer Y dwarf population and the coldest brown dwarf ever discovered. W0830 was identified through the Backyard Worlds: Planet 9 citizen science collaboration, which brings together over 150,000 people around the world in identifying cold, fast-moving sources through coadded WISE images. We have characterized this object with Hubble and Spitzer Space Telescope follow-up photometry. The available evidence points to a ~Y1 source at Teff ~ 350 K with a planetary mass of 4-13Mjup, as extrapolated from the known Y dwarf population. This object joins a small, yet growing sample of “missing link” objects connecting brown dwarfs to giant planets in terms of temperature.
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Additional details
Related works
- Cites
- Journal article: https://ui.adsabs.harvard.edu/abs/2020ApJ...895..145B/abstract (URL)
References
- Bardalez Gagliuffi et al. (2020). WISEA J083011.95+283716.0: A Missing Link Planetary-mass Object. https://ui.adsabs.harvard.edu/abs/2020ApJ...895..145B/abstract
- Cushing et al. (2011). The Discovery of Y Dwarfs using Data from the Wide-field Infrared Survey Explorer (WISE). https://ui.adsabs.harvard.edu/abs/2011ApJ...743...50C/abstract
- Meisner et al. (2020a). Expanding the Y Dwarf Census with Spitzer Follow-up of the Coldest CatWISE Solar Neighborhood Discoveries. https://ui.adsabs.harvard.edu/abs/2020ApJ...889...74M/abstract
- Luhman (2014). Discovery of a ~250 K Brown Dwarf at 2 pc from the Sun. https://ui.adsabs.harvard.edu/abs/2014ApJ...786L..18L/abstract