Other
Scientific paper
Feb 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002rmxac..12..250p&link_type=abstract
Ionized Gaseous Nebulae, a Conference to Celebrate the 60th Birthdays of Silvia Torres-Peimbert and Manuel Peimbert, Mexico City
Other
3
Galaxies: Abundances, H Ii Regions
Scientific paper
We analyze the observations of 45 oxygen poor extragalactic H II regions obtained by Izotov et al. Based on this analysis we select the 12 best observed objects. We determine their He/H ratio taking into account the optical depth in the He I 3889 Å line, the density structure, and the temperature structure. Using these values we determine the primordial helium abundance. This determination is in very good agreement with that derived by Peimbert, Peimbert, & Ruiz (2000, hereinafter Paper I) on the other hand it is considerably smaller than that derived by Izotov et al. from the same sample of objects. The main difference is due to the treatment of the temperature structure of these objects.
Peimbert Antonio
Peimbert Manuel
No associations
LandOfFree
A New Determination of the Primordial Helium Abundance does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A New Determination of the Primordial Helium Abundance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A New Determination of the Primordial Helium Abundance will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1043513