Big bang nucleosynthesis (BBN) describes the production of the lightest nuclides via a
dynamic interplay among the four fundamental forces during the first seconds of cosmic time …

▪ Abstract Interstellar turbulence has implications for the dispersal and mixing of the
elements, cloud chemistry, cosmic ray scattering, and radio wave propagation through the …

ABSTRACT WMAP precision data enable accurate testing of cosmological models. We find
that the emerging standard model of cosmology, a flat Λ-dominated universe seeded by a …

Observations indicate that massive stars in the Galaxy form in regions of very high surface
density, Σ∼ 1 g cm-2. Clusters containing massive stars and globular clusters have a …

We report the results of a FUSE study of high-velocity O VI absorption along complete sight
lines through the Galactic halo in directions toward 100 extragalactic objects and two halo …

We use high signal-to-noise ratio spectra of 20 H II regions in the giant spiral galaxy M101 to
derive electron temperatures for the H II regions and robust metal abundances over radii R …

We improve standard big bang nucleosynthesis (SBBN) calculations by taking into account
new nuclear physics analyses (the 2003 work of Descouvemont and coworkers). Using a …

We report the detection of deuterium absorption at redshift 2.525659 toward Q1243+ 3047.
We describe improved methods to estimate the deuterium to hydrogen abundance ratio …

Analyses of spectra obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE)
satellite, together with spectra from the Copernicus and interstellar medium absorption …

Using high-resolution ultraviolet spectra of 16 low-z QSOs obtained with the E140M echelle
mode of the Space Telescope Imaging Spectrograph, we study the physical conditions and …