SIMBAD references

2006A&A...454..137I - Astronomy and Astrophysics, volume 454, 137-141 (2006/7-4)

Two extremely metal-poor emission-line galaxies in the Sloan Digital Sky Survey.

IZOTOV Y.I., PAPADEROS P., GUSEVA N.G., FRICKE K.J. and THUAN T.X.

Abstract (from CDS):

We present spectroscopic observations with the 3.6 m ESO telescope of two emission-line galaxies, J2104-0035 and J0113+0052, selected from the Data Release 4 (DR4) of the Sloan Digital Sky Survey (SDSS). From our data we determine the oxygen abundance of these systems to be respectively 12+logO/H=7.26±0.03 and 7.17±0.09, making them the two most metal-deficient galaxies found thus far in the SDSS and placing them among the five most metal-deficient emission-line galaxies ever discovered. Their oxygen abundances are close to those of the two most metal-deficient emission-line galaxies known, SBS 0335-052W with 12+logO/H=7.12±0.03 and I Zw 18 with 12+logO/H=7.17±0.01.

Abstract Copyright: ∼

Journal keyword(s): galaxies: fundamental parameters - galaxies: starburst - galaxies: abundances

Nomenclature: Figs 1: [IPG2006] JHHMM+DDMM N=2, [IPG2006] J2104-0035W (Nos C, N), [IPG2006] J2104-0035 star N=1, [IPG2006] J0113+0052 BG N=1.

CDS comments: J2104-0035 = J2104-0035C = SDSS J210455.31-003522.3, J0113+0052 = SDSS J011340.45+005239.1.

Simbad objects: 4

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