The first Frontier Fields cluster: 4.5 μm excess in a z ~ 8 galaxy candidate in Abell 2744

@article{Laporte2014TheFF,
  title={The first Frontier Fields cluster: 4.5 μm excess in a z ~ 8 galaxy candidate in Abell 2744},
  author={Nicolas Laporte and Alina Streblyanska and Benjamin Cl{\'e}ment and Ismael P'erez-Fournon and Daniel Schaerer and Hakim Atek and F. Boone and J. – P. Kneib and Eiichi Egami and Paloma I. Mart'inez-Navajas and Rui Marques-Chaves and Roser Pello and Johan Richard},
  journal={Astronomy and Astrophysics},
  year={2014},
  volume={562}
}
  • Nicolas Laporte, Alina Streblyanska, +10 authors Johan Richard
  • Published 2014
  • Physics
  • Astronomy and Astrophysics
  • Aims: We present in this letter the first analysis of a z ~ 8 galaxy candidate found in the Hubble and Spitzer imaging data of Abell 2744 as part of the Hubble Frontier Fields legacy program. Methods: We applied the most commonly used methods to select exceptionally high-redshift galaxies by combining non-detection and color criteria using seven HST bands. We used GALFIT on IRAC images to fit and subtract contamination of bright nearby sources.The physical properties were inferred from spectral… CONTINUE READING

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