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Date and Time of the Query: 2019-06-19 T02:15:37 PDT
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For refcode 2006ApJ...649..129B:
Retrieve 34 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
2006ApJ...649..129B A Search for Low Surface Brightness Structure around Compact Narrow Emission Line Galaxies Elizabeth J. Barton, Liese van Zee, and Matthew A. Bershady Abstract. As the most extreme members of the rapidly evolving faint blue galaxy population at intermediate redshift, the compact narrow emission line galaxies (CNELGs) are intrinsically luminous (-22<~M_B_<~-18) with narrow emission line widths (30kms^-1^<~{sigma}<~125kms^-1^). Their nature is heavily debated: they may be low-mass starbursting galaxies that will fade to present-day dwarf galaxies or bursts of star formation temporarily dominating the flux of more massive galaxies, possibly related to in situ bulge formation or the formation of cores of galaxies. We present deep, high-quality (~0.6" -- 0.8") images with CFHT of 27 CNELGs. One galaxy shows clear evidence for a tidal tail; the others are not unambiguously embedded in galactic disks. Approximately 55% of the CNELGs have sizes consistent with local dwarfs of small to intermediate sizes, while 45% have sizes consistent with large dwarfs or disk galaxies. At least four CNELGs cannot harbor substantial underlying disk material; they are low-luminosity galaxies at the present epoch (M_B_>-18). Conversely, 15 are not blue enough to fade to low-luminosity dwarfs (M_B_>-15.2). The majority of the CNELGs are consistent with progenitors of intermediate-luminosity dwarfs and low-luminosity spiral galaxies with small disks. CNELGs are a heterogeneous progenitor population with significant fractions (up to 44%) capable of fading into today's faint dwarfs (M_B_>-15.2), while 15% -- 85% may only experience an apparently extremely compact CNELG phase at intermediate redshift but remain more luminous galaxies at the present epoch. Key words: Galaxies: Evolution, Galaxies: High-Redshift
Retrieve 34 NED objects in this reference.
Please click here for ADS abstract

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