Extended and Filamentary Lyα Emission from the Formation of a Protogalactic Halo at z=2.63 ⋆ †

@article{Rauch2013ExtendedAF,
  title={Extended and Filamentary Ly$\alpha$ Emission from the Formation of a Protogalactic Halo at z=2.63 ⋆ †},
  author={Michael Rauch and George D. Becker and Martin G. Haehnelt and Jean-Ren'e Gauthier and Wallace L. W. Sargent},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2013},
  volume={429},
  pages={429-443}
}
We report the observation of a further asymmetric, extended Lyα emitting halo at z = 2.63, from our ultra-deep, long-slit spectroscopic survey of faint high-redshift emitters, undertaken with Magellan LDSS3 in the GOODS-S field. The Lyα emission, detected over more than 30 kpc, is spatially coincident with a statistically significant concentration of galaxies visible in deep broad-band imaging. While these faint galaxies without spectroscopic redshifts cannot all with certainty be associated… 

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References

SHOWING 1-10 OF 109 REFERENCES
Filamentary infall of cold gas and escape of Lyα and hydrogen ionizing radiation from an interacting high‐redshift galaxy★
We present observations of a peculiar Lyα-emitting galaxy at redshift z = 3.344, discovered in a deep, blind spectroscopic survey for faint Lyα emitters with the Magellan II telescope in the Hubble
Diffuse Lyα Emitting Halos: A Generic Property of High-redshift Star-forming Galaxies
Using a sample of 92 UV continuum-selected, spectroscopically identified galaxies with langzrang = 2.65, all of which have been imaged in the Lyα line with extremely deep narrow-band imaging, we
Faint extended Lyα emission due to star formation at the centre of high column density QSO absorption systems
We use detailed Lyα radiative transfer calculations to further test the claim of Rauch et al. that they have detected spatially extended faint Lyα emission from the elusive host population of damped
He II Emission in Lyα Nebulae: Active Galactic Nucleus or Cooling Radiation?
We present a study of an extended Lyα nebula located in a known overdensity at z ~ 2.38. The data include multiwavelength photometry covering the rest-frame spectral range from 0.1 to 250 μm, and
Resolving the Galaxies within a Giant Lyα Nebula: Witnessing the Formation of a Galaxy Group?
Detailed analysis of the substructure of Lyα nebulae can put important constraints on the physical mechanisms at work and the properties of galaxies forming within them. Using high-resolution Hubble
Lyman Alpha Imaging of a Proto-Cluster Region at =3.09
We present very deep imaging observations, through a narrow-band filter tuned to Lyman alpha at , of a volume containing a significant over-density of galaxies at this redshift previously discovered
Detection of dark galaxies and circum-galactic filaments fluorescently illuminated by a quasar at z = 2.4★
A deep narrow-band survey for Lyα emission carried out on the VLT-FORS has revealed 98 Lyα candidates down to a flux limit of FLyα ∼ 4 × 10−18 erg s−1 cm−2 in a volume of 5500 comoving Mpc3 at z =
The Distribution of Lyα-Emitting Galaxies at z=2.38
We present the detection of 34 Lyα emission-line galaxy candidates in a 80 × 80 × 60 comoving Mpc region surrounding the known z = 2.38 galaxy cluster J2143-4423. The space density of Lyα emitters is
Lyα blobs as an observational signature of cold accretion streams into galaxies
Recent hydrodynamic simulations of galaxy formation reveal streams of cold (T ∼ 10 4 K) gas flowing into the centres of dark matter haloes as massive as 10 12-13.5 M ⊙ at redshifts z ∼ 1-3. In this
Lyα emission in high-redshift galaxies ⋆
Context. A significant fraction of the high-redshift galaxies show st rong Lyα emission lines. For redshifts z> 5, most known galaxies belong to this class. However, so far not much is known about
...
1
2
3
4
5
...