Quasar Definition and 60 Threads

Mapping extreme-scale alignments of quasar polarization vectors Accepted by Astronomy & Astrophysics; 19 pages, 17 figures. Include Table A1 which will be available via CDS D. Hutsemekers, R. Cabanac, H. Lamy, D. Sluse Based on a new sample of 355 quasars with significant optical...

An Old quasar in a Young Universe? On the arXiv today:Age of High Redshift Objects - a Litmus Test for the Dark Energy Models The Abstract: (Italics mine) Just for the record, in the SCC scenario, in the Einstein conformal frame with constant atomic proper masses, the age of the universe at z...

http://xxx.lanl.gov/PS_cache/astro-ph/pdf/0507/0507274.pdf If quasars are at the cosmological distances suggested by their redshifts, can they conspire to be polarized similarly with respect to their line-of-sight angle to the Earth? If the universe is homogeneous and isotropic, these...

Nereid brought up the subject of quasar absorption lines in the "Dark Matter" post. I worked on the subject as an undergrad, so I would be happy to answer any questions you have about it. Some examples of things it tells us are 1) The power spectrum of matter in the universe (small scales)...

"lensed" quasar pair Here is a paper about a purportedly lensed quasar. http://xxx.lanl.gov/abs/astro-ph/0505248 Has anybody notice how "lensed" quasars, like those comprising the Einstein cross, seem to manage to retain their point-like appearance instead of exhibiting arc-like...

Why does there have to be a big bang, why couldn't we (the universe) begun from another universe's black whole and pure energy flowed from a quasar, or white hole, from reading about quasars they are dumping millions of times the energy into the universe than galaxies that we view that is...

This is my first post, so I am going to get straight into a double barreled question that has been bugging me for a while. (1) How long does it take for stars to conglomerate around a general loci, in order to form a proto-galaxy. ? I ask this in the light of the most recent Hubble images...

The spacetime of the foggoid (for information about foggoid, please see Chapter 6 of the Antigravitation Engine Site) is curved; therefore the foggoid has gravitation. Due to the nature of "whole or none" of antigravitation, the curvature of foggoid is unstable; hence the gravitation of...

SDSS observations, supported by Subaru and Keck, confirmed that a massive cluster of galaxies is the gravitational lens for a quadruple-quasar image, the widest pair being separated by >14" (arc seconds). In addition, "[d]iscovering one such wide gravitational lens out of over 30,000 SDSS...

One of the main problems of quasars is: How can an energy equivalent to 100 times that of a normal galaxy, be produced continuously in a region smaller than the Solar System? To solve this puzzle, it was suggested that quasars were not at cosmological distances, but much closer, even within...