SIMBAD references

2004A&A...424L..17V - Astronomy and Astrophysics, volume 424, L17-20 (2004/9-3)

Discovery of six Lyα emitters near a radio galaxy at z∼5.2.

VENEMANS B.P., ROETTGERING H.J.A., OVERZIER R.A., MILEY G.K., DE BREUCK C., KURK J.D., VAN BREUGEL W., CARILLI C.L., FORD H., HECKMAN T., McCARTHY P. and PENTERICCI L.

Abstract (from CDS):

We present the results of narrow-band and broad-band imaging with the Very Large Telescope of the field surrounding the radio galaxy TN J0924-2201 at z=5.2. Fourteen candidate Lyα emitters with a rest-frame equivalent width of >20Å were detected. Spectroscopy of 8 of these objects showed that 6 have redshifts similar to that of the radio galaxy. The density of emitters at the redshift of the radio galaxy is estimated to be a factor 1.5-6.2 higher than in the field, and comparable to the density of Lyα emitters in radio galaxy protoclusters at z=4.1, 3.1 and 2.2. The Lyα emitters near TN J0924-2201 could therefore be part of a structure that will evolve into a massive cluster. These observations confirm that substantial clustering of Lyα emitters occurs at z>5 and support the idea that radio galaxies pinpoint high density regions in the early Universe.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: clusters: general - galaxies: evolution - cosmology: observations - cosmology: early Universe

Nomenclature: Table 1: [VRO2004] NNNN N=8 among (Nos 259-2881).

Simbad objects: 9

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2020.01.21-18:15:29

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