Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...107..161k&link_type=abstract
Astronomy and Astrophysics, vol. 107, no. 1, Mar. 1982, p. 161-165. Research sponsored by the Deutsche Forschungsgemeinschaft.
Astronomy and Astrophysics
Astrophysics
14
A Stars, Atomic Spectra, Europium, Line Spectra, Peculiar Stars, Stellar Spectra, Transition Probabilities, Monochromators, Spectral Line Width, Stellar Atmospheres
Scientific paper
The relative intensities of 27 optical transitions in the Eu II spectrum are measured, and the excited state lifetimes absolute oscillator strengths are computed. A grating monochromator is used to observe selectively the emitted lines in the wavelength region from 350-750 nm, and a tungsten ribbon lamp is used for the calibration of the spectral sensitivity of the detection system. Relative line intensity numerical values demonstrate intensity differences of up to a factor of 1000, with errors amounting to a total uncertainty of 6% for strong lines and 8% for weak lines. The oscillator strengths of the first europium ion justify a new analysis of the solar abundance of this element.
Karner C.
Meyer Georges
Traeger F.
Zu Putlitz G.
No associations
LandOfFree
Absolute transition probabilities in the spectra of EU I and EU II. II - Line intensity measurements 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 in the spectra of EU I and EU II. II - Line intensity measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absolute transition probabilities in the spectra of EU I and EU II. II - Line intensity measurements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1014097