655 citations · 6.5k across the 81 of their papers we have counts for
28 papers · 1 filter
Extremely metal-poor star-forming galaxies. New detections and general morphological and photometric properties
P. Papaderos, N. G. Guseva, Y. I. Izotov +1
(abridged) We present long-slit spectroscopy with the 3.6m ESO telescope of eight HII regions in seven star-forming (SF) dwarf galaxies, discovered in SDSS DR4 and 6dFGRS. In addit…
Broad Line Emission in Low-Metallicity Blue Compact Dwarf Galaxies: Evidence for Stellar Wind, Supernova and Possible AGN Activity
Y. I. Izotov, T. X. Thuan, N. G. Guseva
We present spectra of a large sample of low-metallicity blue compact dwarf galaxies which exhibit broad components in their strong emission lines, mainly in Hbeta, [O III]4959, 500…
VLT/GIRAFFE spectroscopic observations of the metal-poor blue compact dwarf galaxy SBS 0335-052E
Y. Izotov, D. Schaerer, A. Blecha +3
We present two-dimensional spectroscopy of the extremely metal-deficient blue compact dwarf (BCD) galaxy SBS 0335-052E aiming to studyphysical conditions, element abundances and ki…
New southern blue compact dwarf galaxies in the 2dF Galaxy Redshift Survey
P. Papaderos, N. G. Guseva, Y. I. Izotov +3
Aiming to find new extremely metal-deficient star-forming galaxies we extracted from the Two-Degree Field Galaxy Redshift Survey (2dFGRS) 100K Data Release 14 emission-line galaxie…
Oxygen abundance variations in the system of the two blue compact dwarf galaxies SBS 0335-052E and SBS 0335-052W
P. Papaderos, Y. I. Izotov, N. G. Guseva +2
We present 3.6m ESO telescope spectroscopic observations of the system of the two blue compact dwarf galaxies SBS 0335-052W and SBS 0335-052E. The oxygen abundance in SBS 0335-052W…
Two extremely metal-poor emission-line galaxies in the Sloan Digital Sky Survey
Y. I. Izotov, P. Papaderos, N. G. Guseva +2
We present spectroscopic observations with the 3.6m ESO telescope of two emission-line galaxies, J2104-0035 and J0113+0052, selected from the Data Release 4 (DR4) of the Sloan Digi…