Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983chjss...3q.195y&link_type=abstract
(Chinese Journal of Space Science, vol. 3, no. 3, 1983, p. 195-206) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 7,
Astronomy and Astrophysics
Astrophysics
Light Emission, Quasars, Seyfert Galaxies, X Ray Sources, Color, Histograms, Luminous Intensity, Red Shift, Statistical Analysis
Scientific paper
A statistical analysis of the X-ray properties of 247 quasars observed by the Einstein Observatory in the 0.5 - 4.5 kev band is made. The main results are as follows. Among the various magnitude and redshift groups of 1619 known quasars, the proportion of X-ray sources is nearly constant. There is a strong correlation between the X-luminosity of Type-I Seyferts and the ratio of the equivalent widths of their H-beta and (O III) emission lines; the latter can be used as an X-luminosity indicator. The X-luminosity is correlated with both the optical luminosity and the radio luminosity above 2.5 GHz, suggesting that they have a similar emission mechanism and the regions of their emission are in that order. The X-luminosity is not correlated with either U-B or B-V. There is a weak correlation between the two color indices.
Liu Rong-Li
Yang Hyun Seok
Zhang Qing-Hong
No associations
LandOfFree
Properties of X-ray quasars 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 Properties of X-ray quasars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Properties of X-ray quasars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1802985