Relative abundance of elements in quasi-stellar objects and evolution of galaxies

Details Relative abundance of elements in quasi-stellar objects and evolution of galaxies Relative abundance of elements in quasi-stellar objects and evolution of galaxies

Jul 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..85..277t&link_type=abstract

Astrophysics and Space Science, vol. 85, no. 1-2, July 1982, p. 277-292.

Astronomy and Astrophysics

Astrophysics

1

Absorption Spectra, Abundance, Chemical Evolution, Galactic Evolution, Quasars, Carbon, Galactic Nuclei, Milky Way Galaxy, Red Shift, Silicon, Spectral Line Width

Scientific paper

Abundance ratios in the QSOs Q 1246-057, 0453-423, PKS 0528-250, Q 0002-422, and PKS 2126-158 are calculated using the 'curve of growth' method. The relative abundance of carbon with respect to silicon is calculated in the QSOs Q 1246-057, PKS 0528-250, Q0002-422, and PKS 2126-158. The relative abundance of aluminum with respect to silicon is calculated in the QSOs PKS 0528-250 and PKS 2126-158, and the relative abundance of iron with respect to magnesium is calculated in the QSOs Q 0453-423 and Q 0002-422. The ratios N(C)/N(Si), N(Al)/N(Si), and N(Fe)/N(Mg) in the QSOs considered as a class are found to be 3.45 + or - 2.33, 0.063 + or - 0.054, and 1.08 + or - 0.70, respectively. The ratios N(C)/N(Si) and N(Al)/N(Si) exhibit a mild trend of increase with decreasing emission redshift. On the other hand, the ratio N(Fe)/N(Mg) reveals a mild trend of decrease with decreasing emission redshift. This is seen as suggesting the possibility of the chemical evolution of QSOs.

Affiliated with

Also associated with

No associations

Rating

Relative abundance of elements in quasi-stellar objects and evolution of galaxies 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 Relative abundance of elements in quasi-stellar objects and evolution of galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Relative abundance of elements in quasi-stellar objects and evolution of galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1022478