A Remarkably Luminous Galaxy at z=11.1 Measured with Hubble Space Telescope Grism Spectroscopy

@article{Oesch2016ARL,
  title={A Remarkably Luminous Galaxy at z=11.1 Measured with Hubble Space Telescope Grism Spectroscopy},
  author={Pascal A. Oesch and Gabriel B. Brammer and Pieter van Dokkum and Garth D. Illingworth and Rychard J. Bouwens and Ivo Labb{\'e} and Marijn Franx and Ivelina G. Momcheva and Matthew L. N. Ashby and Giovanni G. Fazio and Valentino Gonzalez and Bradford Holden and Daniel K. Magee and Rosalind E. Skelton and Renske Smit and Lee R. Spitler and Michele Trenti and S. P. Willner},
  journal={The Astrophysical Journal},
  year={2016},
  volume={819},
  pages={129}
}
We present Hubble WFC3/IR slitless grism spectra of a remarkably bright $z\gtrsim10$ galaxy candidate, GN-z11, identified initially from CANDELS/GOODS-N imaging data. A significant spectroscopic continuum break is detected at $\lambda=1.47\pm0.01~\mu$m. The new grism data, combined with the photometric data, rule out all plausible lower redshift solutions for this source. The only viable solution is that this continuum break is the Ly$\alpha$ break redshifted to ${z_\mathrm{grism}=11.09^{+0.08… 
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State-of-the-art rest-frame UV and FIR photometric and spectroscopic observations are now pushing the redshift frontiers of galaxy formation studies up to z ∼ 9− 11 and beyond. Recent HST
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