NARROWBAND IMAGING OF ESCAPING LYMAN-CONTINUUM EMISSION IN THE SSA22 FIELD,
نویسندگان
چکیده
منابع مشابه
The Lyman continuum radiation escaping from galaxies
The Hα luminosity density of galaxies is used to calculate the local diffuse radiation field at the Lyman limit as resulting from star formation in the universe. The fraction of Lyman continuum radiation leaking out from galaxies through their neutral hydrogen is the most uncertain parameter of the calculation. A comparison of the diffuse radiation predicted from galaxies with that measured fro...
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We have used the SAURON panoramic integral field spectrograph to study the structure of the Ly-α emission-line halo, LAB1, surrounding the sub-millimeter galaxy SMM J221726+0013. This emission-line halo was discovered during a narrow-band imaging survey of the z = 3.1 large-scale structure in the SSA22 region. Our observations trace the emission halo out to almost 100 kpc from the sub-millimete...
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Concurrent observations of Lyman continuum (LyC) and Lyman α (Lyα) emission escaping from star-forming systems at low redshift are essential to understanding the physics of reionization at high redshift (z & 6). Some have suggested reionization is dominated by numerous small galaxies with LyC escape fractions fe ∼ 10%, while others suggest mini-quasars with higher fe might also play a role. At ...
متن کاملEffects of Star Formation Stochasticity on the Lyα & Lyman Continuum Emission from Dwarf Galaxies during Reionization
Observations of distant galaxies play a key role in improving our understanding of the Epoch of Reionization (EoR). The observed Lyα emission line strength – quantified by its restframe equivalent width (EW) – provides a valuable diagnostic of stellar populations and dust in galaxies during and after the EoR. In this paper we quantify the effects of star formation stochasticity on the predicted...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2011
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/736/1/18