Title
Observational Constraints on the Primordial Helium Abundance
Abstract
I will review recent progress on the observational determination of the primordial helium
abundance (Yp). Presently, the best constraints on Yp come from observations of star
forming regions in very metal-poor galaxies (although the impact of Yp on the CMB
has been detected). Progress has come through the discovery of more very metal-poor
galaxies and by extending spectral observations in to the near infrared with, for example,
the Large Binocular Telescope.
Suggested Citation
Skillman, Evan.
(2017).
Observational Constraints on the Primordial Helium Abundance.
Retrieved from the University of Minnesota Digital Conservancy,
https://hdl.handle.net/11299/188248.