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New knowledge in determining the astronomical orientation of Incas object in Ollantaytambo, Peru
Ollantaytambo astronomical orientation astronomical azimuth Pyramids Pacaritanpu archeoastronomy Peru
2014/7/30
This paper deals about astronomical orientation of Incas objects in Ollantaytambo, which is located about 35 km southeast from Machu Picchu, about 40 km northwest from Cusco, and lies in the Urubamba ...
Perturbed stellar motions around the rotating black hole in Sgr A* for a generic orientation of its spin axis
Perturbed stellar motions rotating black hole generic orientation spin axis
2011/10/17
Empirically determining the averaged variations of the orbital parameters of the stars orbiting the Supermassive Black Hole (SBH) hosted by the Galactic Centre (GC) in Sgr A* is, in principle, a valua...
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
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...
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...