Quasars also show ' forbidden ' spectral emission lines which were previously only seen in hot gaseous nebulae of low density, which would be too diffuse to both generate the observed power and fit within a deep gravitational well.

Quasars below a certain redshift will not show the Gunn-Peterson trough ( though they may show the Lyman-alpha forest ), while quasars emitting light prior to reionization will feature a Gunn-Peterson trough.

Quasars are extremely luminous and were first identified as being high redshift sources of electromagnetic energy, including radio waves and visible light, that were point-like, similar to stars, rather than extended sources similar to galaxies.

Due to the high frequency used, the chances finding gravitational lenses increases as the relative number of compact core objects ( e. g. Quasars ) are higher ( Sadler et al.

Quasars, Redshifts and Controversies is a 1987 book by Halton Arp, an astronomer famous for his Atlas of Peculiar Galaxies ( 1966 ).

Quasars release an extraordinary amount of energy, meaning they are among the brightest objects in the universe.

* Quasars ( objects the size of the solar system and as luminous as a hundred modern galaxies, so distant that they date from the early years of the universe );

* Quasars ( objects the size of the solar system and as luminous as a hundred modern galaxies, so distant that they date from the early years of the universe );

Celestial objects like Quasars, super dense objects that lie far from Earth, emit electromagnetic waves in its full spectrum including radio waves.

Quasars also happen to have relatively uniform spectral features, regardless of position in sky or distance from Earth.

Quasars are believed to be powered by accretion of material into supermassive black holes in the nuclei of distant galaxies, making these luminous versions of the general class of objects known as active galaxies.

Quasars may also be ignited or re-ignited from normal galaxies when infused with a fresh source of matter.

Quasars were originally ' quasi-stellar ' in optical images, and so had optical luminosities that were greater than that of their host galaxy.

* Arp, Halton C., Quasars, Redshifts and Controversies.

Quasars are not radio stars.

Quasars are a good candidate source because they are highly efficient at converting mass to energy, and emit a great deal of light above the threshold for ionizing hydrogen.

( Quasars are also associated with an accreting compact object, but are thought to be merely a particular variety of AGN.

Quasars ( short for " quasi-stellar radio source ") were one of the first point-like radio sources to be discovered.

Quasars ' extreme red shift led us to conclude that they are distant active galactic nuclei.

Bell and D. McDiarmid, reported: " Six Peaks Visible in the Redshift Distribution of 46, 400 SDSS Quasars Agree with the Preferred Redshifts Predicted by the Decreasing Intrinsic Redshift Model ".

* Quasars have been photographed since the late 19th centuries although they were not known to be unusual objects until the 1960s.

Secondly, a whole series of addresses and actions by the Pope and by others show that concern for Christian unity is still very much alive and growing within the Church.

In recent years many counties and the U. S. Forest Service have taken aerial photos which show features in detail and are very good for planning use.

But for all the manifest intention to `` show off '', this was a circus with a difference, for instead of descending in quality to what is known as a popular level, it added further to the evidence that this is a very great dancing company.

She put a strong hand under the old man's arm and lifted him up, patiently, with the gentle cruelty and necessary tyranny that the young show toward the very old.

Mr Judge's great innovation is to transform the Liebeslieder Singers from the evening-dressed, after-dinner line-up into 18th century ghosts weaving in and out of the action ... But Mr Judge's other great realisation is that, in Sondheim, the lyrics are not an adornment to a song but their very essence: understand them and the show will flow.

As the official show of the Confederation of Passenger Transport, the UK ’ s trade association for the bus, coach and light rail industry, the three day event offers visitors from Europe and beyond the chance to see and experience, at first hand, the very latest vehicles and product and service innovations right across the industry.

Their many differences in features such as biochemistry, pigmentation, and nutrient reserves show that they diverged very early in evolutionary time.

I specifically got a very good documentary camera filmmaker ( Robert Elfstrom ) to just shoot it like a documentary to follow the action .” Furthermore, “ I wanted to show in Hi, Mom!

Most brochs have scarcements ( ledges ) which would have allowed the construction of a very sturdy wooden first floor ( first spotted by the antiquary George Low in Shetland in 1774 ), and excavations at Loch na Berie on the Isle of Lewis show signs of a further, second floor ( e. g. stairs on the first floor, which head upwards ).

Catullus described his work as expolitum, or polished, to show that the language he used was very carefully and artistically composed.

It has also been used as a fertilizer although lab tests show it is very weak in nutrients with less than 100ppm of available nitrogen and potassium.

For several weeks the channel had very few fresh episodes to show, and episodes of the game show 3-2-1 were screened in its place.

The glow is very nearly uniform in all directions, but the tiny remaining variations show a very specific pattern equal to that expected of a fairly uniformly distributed hot gas that has expanded to the current size of the universe.

Although Kent is described in the show introduction as " mild-mannered ", he can be very assertive, often giving orders to people and taking authoritative command of situations, though, as in the Pre-Crisis Superman stories at that time, Clark is still considered the secret identity.

Unlike YPLL, these measurements show the burden imposed on people who are very sick, but who live a normal lifespan.

On the other hand, nominal damages are very small damages awarded to show that the loss or harm suffered was technical rather than actual.

The sector gears on the left show the double-high teeth very clearly.

It features mostly new material, plus re-recordings of four very obscure Devo songs: " I Need A Chick " and " I Been Refused " ( from Hardcore Devo: Volume Two ), " Find Out " ( which appeared on the single and EP of " Peek-A-Boo " in 1982 ), and " Beehive " ( which was recorded by the band in 1974, at which point it was apparently abandoned with the exception of one appearance at a special show in 2001 ).

Chapters 2, 3, and 4 show the influence of the Judaizers in destroying the very essence of the gospel.

I will show you a great many who have become worse through following it .... The solemn prayers of the Church are abolished, but now there are very many who never pray at all .... I have never entered their conventicles, but I have sometimes seen them returning from their sermons, the countenances of all of them displaying rage, and wonderful ferocity, as though they were animated by the evil spirit .... Who ever beheld in their meetings any one of them shedding tears, smiting his breast, or grieving for his sins ?...

Later hagiographers often painted a picture of Ephrem as an extreme ascetic, but the internal evidence of his authentic writings show him to have had a very active role, both within his church community and through witness to those outside of it.

The evidence is found in two early maps, one made by the Portuguese cartographer Pedro Reinel in about 1522, the very first map to show the Falklands, the other a French copy of a Portuguese map bought in Lisbon by André Thévet ( 1516-1590 ), a Franciscan friar and prolific writer on many subjects ; this copy is now in the manuscript of a large unpublished work by Thevet in the Bibliothèque nationale de France in Paris.

The key properties of disk galaxies, which are also commonly called spiral galaxies, is that they are very thin, rotate rapidly, and often show spiral structure.