Poster Open Access
Let the Great World Spin: Revealing the Turbulent, Stormy Atmospheres of Giant Planet Analogs
Vos, Johanna M.;
Faherty, Jacqueline K;
Gagné, Jonathan;
Marley, Mark;
Metchev, Stanimir;
Rice, Emily;
Cruz, Kelle
Photometric variability monitoring of brown dwarfs is a unique probe of their atmospheres as it is sensitive to condensate clouds as they rotate in and out of view. Variability has now been robustly observed in a range of L, T and Y spectral type brown dwarfs and more recently in planetary-mass companions and free-floating exoplanet analogs. Emerging as an important insight into brown dwarf and exoplanet atmospheric physics is evidence for a correlation between enhanced clouds and youth. We present results from the first large survey for mid-IR photometric variability in 26 young, low-mass brown dwarfs using the Spitzer Space Telescope. These unique, time-resolved variability monitoring data enable us to compare variability trends between younger and older brown dwarfs to definitively test the potential correlation between cloud-induced variability and youth in brown dwarfs.
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Metchev et al. (2015) arXiv:1411.3051
Vos et al. (2020) arXiv:2005.12854
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- Publication date:
- February 26, 2021
- DOI:
-
- Keyword(s):
- Very low mass stars Young stars Brown dwarfs Exoplanet atmospheres
- Meeting:
- The 20.5th Cambridge Workshops of Cool Stars, Stellar Systems and the Sun (CS20.5), virtually anywhere, March 2-4, 2021
- Communities:
- License (for files):
- Creative Commons Attribution 4.0 International