Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26as..122..157m&link_type=abstract
A & A Supplement series, Vol. 122, April I 1997, 157-161.
Astronomy and Astrophysics
Astronomy
20
Atomic Data, Ism: Abundances, Ism: Atoms, Ultraviolet: General, Sun: Abundances
Scientific paper
We report the first laboratory measurement of absorption oscillator strengths (f-values) for 6 VUV (\lambdavac ~ 162 nm) transitions of the a^6D -> y^6P^{\circ} multiplet (#8) in Fe II. We have also reconfirmed a recent measurement of the f-value of the Fe II resonance line at lambdavac= 160.845 nm. These measurements are made with the high sensitivity absorption experiment at the University of Wisconsin-Madison. Measurements are also made on UV (lambdaair >= 200 nm) lines in Fe II with accurately known f-values in order to construct a reliable curve of growth for the experiment. Diffusive cooling of Fe^+ ions in the negative glow of the hollow cathode discharge, which serves as an absorbing sample, results in a non-Maxwellian ion velocity distribution. A satisfactory curve of growth is generated using a full Voigt profile with an artificially low ion temperature in some cases.
Lawler James E.
Mullman Krista Lynn
Sakai Makoto
No associations
LandOfFree
Absolute transition probabilities for the a^6D -> y^6P^{\circ}$ multiplet (#8) of Fe II 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 Absolute transition probabilities for the a^6D -> y^6P^{\circ}$ multiplet (#8) of Fe II, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absolute transition probabilities for the a^6D -> y^6P^{\circ}$ multiplet (#8) of Fe II will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1315767