A galaxy at a redshift z = 6.96

  title={A galaxy at a redshift z = 6.96},
  author={Masanori Iye and Kazuaki Ota and Nobunari Kashikawa and Hisanori Furusawa and Tetsuya Hashimoto and Takashi Hattori and Yuichi Matsuda and Tomoki Morokuma and Masami Ouchi and Kazuhiro Shimasaku},
When galaxy formation started in the history of the Universe remains unclear. Studies of the cosmic microwave background indicate that the Universe, after initial cooling (following the Big Bang), was reheated and reionized by hot stars in newborn galaxies at a redshift in the range 6 < z < 14 (ref. 1). Though several candidate galaxies at redshift z > 7 have been identified photometrically, galaxies with spectroscopically confirmed redshifts have been confined to z < 6.6 (refs 4–8). Here we… 
Spectroscopic confirmation of a galaxy at redshift z = 8.6
It is found that this single source is unlikely to provide enough photons to ionize the volume necessary for the emission line to escape, requiring a significant contribution from other, probably fainter galaxies nearby.
A galaxy rapidly forming stars 700 million years after the Big Bang at redshift 7.51
A deep near-infrared spectroscopic survey of 43 photometrically-selected galaxies with z > 6.5 finds a surprisingly high star-formation rate of about 330 solar masses per year, which is more than a factor of 100 greater than that seen in the Milky Way.
A Rapidly Star-forming Galaxy 680 Million Years After the Big Bang at z=7.51
There are five spectroscopically confirmed z> 7 galaxies, all confirmed via Lymanα emission at z=7.008, 7.045, 7.109, 7.213 and 7.215. The small fraction of confirmed galaxies may indicate that the
Observational Searches for Star-Forming Galaxies at z > 6
  • S. Finkelstein
  • Physics
    Publications of the Astronomical Society of Australia
  • 2016
Abstract Although the universe at redshifts greater than six represents only the first one billion years (< 10%) of cosmic time, the dense nature of the early universe led to vigorous galaxy
Luminosities, Masses and Star Formation Rates of Galaxies at High Redshift
  • A. Bunker
  • Physics
    Proceedings of the International Astronomical Union
  • 2011
Abstract There has been great progress in recent years in discovering star forming galaxies at high redshifts (z > 5), close to the epoch of reionization of the intergalactic medium (IGM). The WFC3
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Luminosity functions of Lyman-α emitters at Redshift z=6.5 and z=5.7: Evidence against reionization at z ≈ 6
Lyman-α emission from galaxies should be suppressed completely or partially at redshifts beyond reionization. Without knowing the intrinsic properties of galaxies at z = 6.5 this attenuation is hard
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Lyman a emission from high-redshift galaxies may be a powerful probe of the ionization history of the intergalactic medium (IGM) at z > 6; the observed Lyman a emission line is sensitive to the IGM
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The visibility of Lyα emission from galaxies should be suppressed substantially by a neutral intergalactic medium before reionization. Even after taking into account a local H II region produced by
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