A Pair of Compact Red Galaxies at Redshift 2.38, Immersed in a 100 Kiloparsec Scale Lyα Nebula

  title={A Pair of Compact Red Galaxies at Redshift 2.38, Immersed in a 100 Kiloparsec Scale Ly$\alpha$ Nebula},
  author={Paul J. Francis and Gerard M. Williger and Nicholas R. Collins and Povilas Palunas and Eliot Mark Malumuth and Bruce E. Woodgate and Harry I. Teplitz and Alain Smette and Ralph S. Sutherland and Anthony C. Danks and Robert S. Hill and D. L. Lindler and Randy A. Kimble and Sara R. Heap and John B. Hutchings},
  journal={The Astrophysical Journal},
  pages={1001 - 1011}
We present Hubble Space Telescope and ground-based observations of a pair of galaxies at a redshift of 2.38, which are collectively known as 2142-4420 B1. Both galaxies are luminous extremely red objects (EROs) and are separated by 0.″8. They are embedded within a 100 kpc scale diffuse Lyα nebula (or blob) of luminosity ~1044 ergs s-1. The radial profiles and colors of both red objects are most naturally explained if they are young elliptical galaxies, the most distant galaxies of this type… 

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