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4 papers · 2 filters
The FERRUM project: Transition probabilities for forbidden lines in [FeII] and experimental metastable lifetimes
J. Gurell, H. Hartman, R. Blackwell-Whitehead +5
Accurate transition probabilities for forbidden lines are important diagnostic parameters for low-density astrophysical plasmas. In this paper we present experimental atomic data f…
TEXES Observations of M Supergiants: Dynamics and Thermodynamics of Wind Acceleration
G. M. Harper, M. J. Richter, N. Ryde +4
We have detected [Fe II] 17.94 um and 24.52 um emission from a sample of M supergiants using TEXES on the IRTF. These low opacity emission lines are resolved at R = 50, 000 and pro…
Mass transfer in eccentric binaries: the new Oil-on-Water SPH technique
Ross P. Church, Johann Dischler, Melvyn B. Davies +3
To measure the onset of mass transfer in eccentric binaries we have developed a two-phase SPH technique. Mass transfer is important in the evolution of close binaries, and a key is…
Abundances in bulge stars from high-resolution, near-IR spectra I. The CNO elements observed during the science verification of CRIRES at VLT
Nils Ryde, Bengt Edvardsson, Bengt Gustafsson +4
The formation and evolution of the Milky Way bulge is not yet well understood and its classification is ambiguous. Constraints can, however, be obtained by studying the abundances…