publication . Other literature type . Article . Preprint . 2016

THE METALLICITY EVOLUTION OF BLUE COMPACT DWARF GALAXIES FROM THE INTERMEDIATE REDSHIFT TO THE LOCAL UNIVERSE

Lian, Jianhui; Hu, Ning; Fang, Guanwen; Ye, Chengyun; Kong, Xu;
  • Published: 29 Feb 2016
  • Publisher: American Astronomical Society
Abstract
We present oxygen abundance measurements for 74 blue compact dwarf (BCD) galaxies in the redshift range in [0.2, 0.5] using the strong-line method. The spectra of these objects are taken using Hectospec on the Multiple Mirror Telescope (MMT). More than half of these BCDs had dust attenuation corrected using the Balmer decrement method. For comparison, we also selected a sample of 2023 local BCDs from the Sloan Digital Sky Survey (SDSS) database. Based on the local and intermediate-z BCD samples, we investigated the cosmic evo- lution of the metallicity, star-formation rate (SFR), and Dn (4000) index. Com- pared with local BCDs, the intermediate-z BCDs had a syst...
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy Astrophysics
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Universe, media_common.quotation_subject, media_common, Balmer series, symbols.namesake, symbols, Metallicity, Astrophysics, Physics, Low Mass, Astronomy, Redshift, Dwarf galaxy, Galaxy, Galaxy formation and evolution, Astrophysics - Astrophysics of Galaxies
Related Organizations

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