6 citations · 10 across the 5 of their papers we have counts for
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Optical & NIR Surface Photometry of I Zw 18
P. Papaderos, Yu. I. Izotov, K. G. Noeske +2
Using HST and ground-based optical and NIR data, we investigate whether the blue compact dwarf (BCD) galaxy I Zw 18 has an extended low-surface-brightness (LSB) older stellar popul…
An origin of the Universe determined by quantum physics and relativistic gravity
C. S. Unnikrishnan, G. T. Gillies, R. C. Ritter
We discuss the evolution of the Universe from what might be called its quantum origin. We apply the uncertainty principle to the origin of the Universe with characteristic time sca…
The N/O abundance ratio in the lowest-metallicity blue compact dwarf galaxies
Y. Izotov, F. Chaffee, C. Foltz +6
The results of the N/O abundance determination in a sample of low-metallicity blue compact dwarf (BCD) galaxies based on new spectroscopic observations with large telescopes (Keck,…
INTEGRAL observations of Galaxy Clusters
P. Goldoni, A. Goldwurm, P. Laurent +3
Cluster of galaxies are the largest concentrations of visible mass in the Universe and therefore a fundamental topic of cosmology and astrophysics. Recent radio, EUV, and X-ray obs…