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H$\beta$ Line Widths as an Orientation Indicator for Low-Ionization Broad Absorption Line Quasars
Orientation Indicator Low-Ionization Absorption Line Quasars
2011/1/11
There is evidence from radio-loud quasars to suggest that the distribution of the H$\beta$ broad emission line (BEL) gas is arranged in a predominantly planar orientation, and this result may well als...
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...
The orientation of the nuclear obscurer of the AGNs
galaxies statistics — galaxies Seyfert — galaxies nuclei — galaxies spiral
2010/11/15
We examine the distribution of axis ratios of a large sample of disk galaxies hosting type 2 AGNs selected from the Sloan Digital Sky Survey and compare it with a well-defined control sample of non-ac...
[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 ...
Quasar Host Orientation and Polarization: Insights into the Type 1/Type 2 Dichotomy
Quasar Host Orientation Polarization Dichotomy
2009/7/9
Quasar Host Orientation and Polarization: Insights into the Type 1/Type 2 Dichotomy。
VLA Observations of Z CMa：The Orientation and Origin of the Thermal Jet
VLA Observations Thermal Jet Z CMa
2009/6/9
VLA Observations of Z CMa：The Orientation and Origin of the Thermal Jet
ORBIT ORIENTATION FOR BINARIES WITH ORBITAL INCLINATION i = 90
ORBIT ORIENTATION BINARIES ORBITAL INCLINATION i = 90
2009/3/18
Among more than 1000 binaries there are 20 systems with orbital
inclination i = 90o ± 3o. Their spatial orientation is examined. It is concluded
that almost 50% of them have quasi complanar orientat...