Could Quasars Be Ejection Events Instead of Collisions?

In summary: As far as the blueshifted quasars are concerned, it's not clear that their redshift is attributable to the motion of the quasar. They could be blueshifted by the motion of the host galaxy through space or they could be blueshifted by the motion of the quasar itself. I would be interested to know why you think the redshift of a blueshifted quasar is attributable to the motion of the quasar.Unclear on the meaning of a creation event. There are several apparent possibilities, including the merger-ejection scenario suggested by Haehnelt et al.Creation event, as in the quasar was ejected from the host and may evolve into an object that does not have
  • #1
turbo
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The post that held the link to this paper has been moved. I would like to see comments on this paper, including impressions of the mechanism responsible for the interaction of the quasar and the associated galaxy.

http://arxiv.org/ftp/astro-ph/papers/0509/0509433.pdf

I objected to the interpretation of "collision" as the source of the interaction and suggested ejection, and a couple of minutes before I hit the submit button, EL came up with a link to this paper.

http://www.arxiv.org/PS_cache/astro-ph/pdf/0511/0511245.pdf

Are we seeing a creation event?
 
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  • #2
Unclear on the meaning of a creation event. There are several apparent possibilities, including the merger-ejection scenario suggested by Haehnelt et al.
 
  • #3
Chronos said:
Unclear on the meaning of a creation event. There are several apparent possibilities, including the merger-ejection scenario suggested by Haehnelt et al.
Creation event, as in the quasar was ejected from the host and may evolve into an object that does not have the same apparent properties (redshift included). Please Google "radiation recoil" or "Slingshot" along wth the term "black hole" to see where the current publications are headed.
 
  • #4
Simple questions remain unanswered...If quasars are ejection events, where are all the ones that should have been ejected directly at us? Not a single, compelling example exists, and there should be thousands of them.
 
  • #5
Chronos said:
Simple questions remain unanswered...If quasars are ejection events, where are all the ones that should have been ejected directly at us? Not a single, compelling example exists, and there should be thousands of them.
I pointed out this example some time back, and your response was something to the effect that it wasn't a good example because the quasar is not superimposed directly of the galaxy's nucleus. Unfortunately, quasars are not all that easy to detect, and if this one were superimposed directly over the nucleus of the galaxy, it would likely never have been detected at all.

http://www.innovations-report.com/html/reports/physics_astronomy/report-38639.html

As for the "directly at us" question, some people have asked "where are the blueshifted quasars?", so I'll address that right now. The Burbidges, Arp, et al contend that quasars have intrinsic red shifts that moderate over time. Nowhere in their work is there a contention that this intrinsic redshift is a doppler effect attributable to the motion of the quasar. The contributions to the total redshift of a quasar are 1) intrinsic (and moderating as the quasar matures) in addition to 2) the redshift appropriate to the quasar's cosmological distance from us, and 3) the redshift or blueshift (+or- adjustment) arising from the quasar's motion through space (away from us, toward us, etc).
 

Related to Could Quasars Be Ejection Events Instead of Collisions?

1. What is a "quasar without a host galaxy"?

A quasar without a host galaxy is a type of quasar that does not have an identifiable host galaxy in its immediate vicinity. Quasars are extremely bright objects in the distant universe that emit large amounts of energy, and they are typically found in the centers of galaxies. However, in some cases, quasars can exist without a clear host galaxy.

2. How is a "quasar without a host galaxy" different from a regular quasar?

A regular quasar is typically found in the center of a galaxy, while a quasar without a host galaxy does not have an identifiable host galaxy in its immediate vicinity. This can be due to several factors, such as the quasar being ejected from its host galaxy or the host galaxy being too faint to be detected.

3. How do scientists identify "quasars without a host galaxy"?

Scientists use various methods to identify quasars without a host galaxy, including studying their spectra, looking for evidence of a surrounding galaxy, and analyzing their brightness and distance from other galaxies. These methods can help determine if a quasar is truly without a host galaxy or if it is simply not visible due to its distance or other factors.

4. What causes a "quasar without a host galaxy" to exist?

The exact cause of a quasar existing without a host galaxy is still unknown and is an area of ongoing research. Some possible explanations include mergers between galaxies, interactions between galaxies, or the quasar being ejected from its host galaxy due to a gravitational disturbance.

5. What can studying "quasars without a host galaxy" tell us about the universe?

Studying quasars without a host galaxy can provide valuable insights into the formation and evolution of galaxies, as well as the mechanisms behind the formation and behavior of quasars. By understanding how quasars exist without a host galaxy, we can gain a better understanding of the overall structure and history of the universe.

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