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Illuminating protogalaxies? The discovery of extended Lyman-α emission around a QSO at z = 4.5

Abstract:

We have discovered extended Lyman-α emission around a z = 4.5 QSO in a deep long-slit spectrum with Keck/LRIS at moderate spectral resolution (R ≈ 1000). The line emission extends 5 arcsec beyond the continuum of the QSO and is spatially asymmetric. This extended line emission has a spectral extent of 1000km/s, much narrower in velocity spread than the broad Lyman-α from the QSO itself and slightly offset in redshift. No evidence of continuum is seen for the extended emission line region, sug...

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Publisher copy:
10.1023/A:1024038312479

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Journal:
Astrophysics and Space Science
Volume:
284
Issue:
2
Pages:
357-360
Publication date:
2003-01-01
DOI:
ISSN:
0004-640X
URN:
uuid:a3766f9e-1ca6-45ea-855d-7e407422826d
Source identifiers:
195977
Local pid:
pubs:195977

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