SDSS J111010.01+011613.1: A New Planetary-Mass T Dwarf Member of the AB Doradus Moving Group
@article{Gagne2015SDSSJA, title={SDSS J111010.01+011613.1: A New Planetary-Mass T Dwarf Member of the AB Doradus Moving Group}, author={J. Gagn'e and A. Burgasser and J. Faherty and D. Lafren{\`i}ere and R. Doyon and Joseph C. Filippazzo and E. Bowsher and C. Nicholls}, journal={arXiv: Solar and Stellar Astrophysics}, year={2015} }
We present a new radial velocity measurement that, together with a trigonometric parallax, proper motion and signs of low gravity from the literature, confirms that SDSS J111010.01+011613.1 is a new T5.5 bona fide member of AB Doradus. Fitting $\lambda/\Delta\lambda$ $\approx$ 6000 FIRE spectroscopy in the 1.20-1.33 $\mu$m region to BT-Settl atmosphere models yielded a radial velocity of $7.5 \pm 3.8$ km s$^{-1}$. At such a young age (110-130 Myr), current evolution models predict a mass of… CONTINUE READING
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