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Orientation effects in quasar spectra: The broad- and narrow-line regions
Orientation effects quasar spectra
2011/1/11
We use the SDSS, along with the NVSS and the WENSS to define a sample of 746 radio-loud quasars and measure their 330MHz to 1.4GHz spectral indexes. Following previous authors we take the spectral ind...
[O III] Equivalent Width and Orientation Effects in Quasars
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/28
The flux of the [OIII] line is considered to be a good indicator of the bolometric emission of quasars. The observed continuum emission from the accretion disc should instead be strongly dependent on ...
On the Relativistic Beaming and Orientation Effects in Core-Dominated Quasars
active jets quasars
2009/5/19
In this paper, we investigate the relativistic beaming effects
in a well-defined sample of core-dominated quasars using the correlation
between the relative prominence of the core with respect to th...
Variability of apatite fission-track annealing kinetics: II. Crystallographic orientation effects
apatite fission-track annealing Crystallographic orientation effects method
2012/3/31
A method is presented that permits the length of any horizontal, confined fission-track inclined at a
specified angle to the crystallographic c axis in apatite to be converted to an equivalent track ...
Cationic Diffusion in Clay Minerals:II. Orientation Effects
Cationic Diffusion Clay Minerals Orientation Effects
2012/2/21
The effect of orientation of vermiculite particles on the diffusion of Na ion was measured by a tracer technique. The diffusion measurements were made on pellets prepared by pressing freeze-dried verm...