78 citations · 79 across the 2 of their papers we have counts for
2 papers
astro-ph.GA2016★ 78 cited
Carbon and oxygen abundance gradients in NGC300 and M33 from optical recombination lines
L. Toribio San Cipriano, J. García-Rojas, C. Esteban +2
We present deep spectrophotometry of several Hii regions in the nearby low-mass spiral galaxies NGC 300 and M33. The data have been taken with UVES and OSIRIS spectrographs attache…
astro-ph2002★ 1 cited
Seven problems related to the determination of the primordial helium abundance
Manuel Peimbert, Antonio Peimbert, Valentina Luridiana +1
Recent advances on the quest to determine the primordial or pregalactic helium abundance, Yp, are reviewed. There are seven problems affecting the He/H abundance determinations of…