Oxygen in Galactic Disk Stars: non-LTE abundances from the 777 nm O I triplet

Details Oxygen in Galactic Disk Stars: non-LTE abundances from the 777 nm O I triplet Oxygen in Galactic Disk Stars: non-LTE abundances from the 777 nm O I triplet

2005-06-29

arxiv.org/abs/astro-ph/0506744v1

Astronomy and Astrophysics

Astrophysics

2 pages, 1 figure, to appear in Proceedings IAU Symposium 228, From Li to U: Elemental Tracers of Early Cosmic Evolution (Pari

Scientific paper

10.1017/S1743921305005788

Oxygen abundances for a large sample of dwarf and giant stars kinematically selected to be part of the Galactic thin and thick disks have been determined from a non-LTE analysis of the O I triplet lines at 777 nm. The abundance analysis was performed using the infrared flux method temperature scale, trigonometric surface gravities, and accurate atomic data. Within this framework, the ionization balance of iron lines could not be satisfied and so we adopted the iron abundances from Fe II lines only given that they are relatively less sensitive to changes in the atmospheric parameters. We show the resulting [O/Fe] vs. [Fe/H] relationship and briefly discuss its implications.

Affiliated with

Also associated with

No associations

Rating

Oxygen in Galactic Disk Stars: non-LTE abundances from the 777 nm O I triplet 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 Oxygen in Galactic Disk Stars: non-LTE abundances from the 777 nm O I triplet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen in Galactic Disk Stars: non-LTE abundances from the 777 nm O I triplet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-235731