quasar

What the hell is a quasar?

What does the red spectrum tell us about quasars?

And why is it so frequently linked with quasars?

I mean from here, with a telescope and you'll see things that look like stars, they're called quasars.

.. and I think that confidently and concisely answers the question, What does the red spectrum tell us about quasars?

In answering the question What does the red spectrum tell us about quasars? ...

Remember, the faster objects we see, the further away they are.

Those are the active galactic nuclei, which we will discuss in more detail later in class.

Quasars are brilliantly shining heavenly bodies that are extremely far away.

So thet's try this from micro background roughly redshift 1000 to say first quasar roughly at redshift five or so.

The one physical system, the brain, contains an accurate working model of the other, the quasar.

The, there is something that couples them through 9 orders of magnitude in size.

So the clustering got weaker, and then got stronger again.

This was measurement of a quasar, which we have to have two images which are just mirages.

In recent years, with a method called VLBI that uses quasar observations, and by GPS we have begun to understand the absolute movement of tectonic plates.

This was originally considered by Chwolson and Einstein, and also Zwicky, but it took until the 1979 to find the first real example.

Well, this implied enormous distances to quasars, which then implied that the, their internal luminosities are huge.

So, measuring cosmic abundance of the deuterium before it's processed in stars gives us a means of estimating the baryonic density of the universe.

So the observed thing is, fluctuations in microwave background, since radiation and baryons are coupled before the recombination, which are parts in a million.

We have this neat separation, between Hubble constant that sets the scale, and all under parameters that Describe the qualitative behavior of the universe.

In 1940's Carl Seyfert wrote his PhD thesis, observed bright nuclei nearby spiral galaxies and found to have these somewhat unusual spectra with very broad emission lines.