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New insight on the far-UV SED and HeII emission from low metallicity galaxies
D. Schaerer, Y. Izotov, T. Fragos
Understanding the ionizing spectrum of low-metallicity galaxies is of great importance for modeling and interpreting emission line observations of early/distant galaxies. Although…
Diverse properties of Ly-alpha emission in low-redshift compact star-forming galaxies with extremely high [OIII]/[OII] ratios
Y. I. Izotov, D. Schaerer, G. Worseck +5
We present observations with the Cosmic Origins Spectrograph onboard the Hubble Space Telescope of eight compact star-forming galaxies at redshifts z=0.02811-0.06540, with low oxyg…
Low-redshift lowest-metallicity star-forming galaxies in the SDSS DR14
Y. I. Izotov, N. G. Guseva, K. J. Fricke +1
We present a sample of low-redshift (z<0.133) candidates for extremely low-metallicity star-forming galaxies with oxygen abundances 12+logO/H<7.4 selected from the Data Release 14…
MgII 2797, 2803 emission in a large sample of low-metallicity star-forming galaxies from SDSS DR14
N. G. Guseva, Y. I. Izotov, K. J. Fricke +1
A large sample of MgII emitting star-forming galaxies with low metallicity [O/H] = log(O/H)-log(O/H)sun between -0.2 and -1.2 dex is constructed from Data Release 14 of the Sloan D…