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Characterizing distant blue galaxies with HST images and Keck spectra
Published online by Cambridge University Press: 25 May 2016
Abstract
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Keck spectra and HST images have been used to derive characteristic velocity and length scales for an enigmatic component of the faint, blue, field galaxy population: the compact, narrow emission-line galaxies (CNELGs). These galaxies are very luminous, but have been found to be quite low mass systems (with typical masses ∼ 109 M⊙). Their blue colors and strong emission lines indicate that they are undergoing a major burst of star formation. Following the completion of their current burst they will fade, becoming, in the absence of further major bursts, objects very similar to contemporary spheroidal galaxies. With mean sizes Re ∼ 1.4 kpc and Gaussian velocity profiles with mean σ = 45 km s–1, the length scales and velocity widths of CNELGs are also quite consistent with the measured length scales and velocity widths of current spheroidals.
- Type
- High Redshift Galaxies
- Information
- Symposium - International Astronomical Union , Volume 171: New Light on Galaxy Evolution , 1996 , pp. 229 - 232
- Copyright
- Copyright © Kluwer 1996
References
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