Tuesday, September 30, 2014
Quasar Numbers and Luminosities
This plot shows 46,000 some odd quasars from the SDSS J dataset in terms of numbers per 250 Myrs as well as luminosity in terms of equivalent sun masses turned into energy. Note that while the quasar number densities peak at 10.25 Byrs, the luminosity keeps going up to one sun mass equivalent energy per year. The time scale assumes a Hubble constant H = 74 km/s/Mpc.
And of course, the matter time universe scales differently and below is the matter time equivalent plot. The matter time universe is 3.4 Byrs proper time and quasar luminosity scales much differently in an expanding force and decaying matter universe as opposed to the space and time expansion of the big bang (actually just by1/gamma^2).
Thus the luminosity of quasars in the early epoch now is very similar to galaxy luminosity in the current epoch, which is due to starlight and not the SMBH. The H = -288 km/s/Mpc, and of course, the Hubble constant is negative for decay and begins at the edge of the universe shrinking inward, just like one might expect for a gravitational universe.
There is also some great work with the number density and luminosities of all galaxies, Nature 469 504–507 (27 January 2011) doi:10.1038/nature09717. Here is a plot of luminosity of all galaxies as well as quasars as a function of Hubble time for the space time expanding universe.
and here is the corresponding plot for the matter time collapsing universe.
Runiverse = 2401 Mpc, 201 billion galaxies at 3.5 Mpc-3. The luminosity uv is the SDSS uv band while sfr is the star forming rate derived from cited models along with the constant galaxy density of 3.5 Mpc-3 shown below. Since there are 54 galaxies in our local group and diameter of 3.1 Mpc, there is 3.5 galaxies per Mpc3.
Here is a plot of the local galaxy number density from PASJ: Publ. Astron. Soc. Japan 55, 757-770, 2003 August 25, http://pasj.asj.or.jp/v55/n4/550406/node4.html. There are 500,000 galaxies within z=2 in SDSS-10.
Here is the plot that shows it all. The galaxy number density is constant at 3.5 Mpc-3, but in a collapsing universe, the space-time metric evolves and the galaxy number density versus time is more like a quadratic function.
It appears that quasar number densities are on the order of 0.47% of galaxy numbers in a collapsing universe. This result is really crazy. What it means is that time lensing of the past affects how we interpret our universe.
The idea of a quasar as a composite of a boson star and an eternally collapsing object is very appealing. In this case, the event horizon represents a phase transition between a time-like fermionic matter, i.e. the ordinary matter of our universe, and the boson matter-like time of a boson star. Matter time does seem to provide a coupling between the fermions of a rotating accretion disk and the bosons of a rotating boson star.
This entity will accrete fermions into the event horizon, undergo phase transition to bosons and emit the balance of the fermions as light at the jets of the quasar.
It is very likely that thermodynamics will provide a useful way to handle this phase transition from two such different states of matter. In fact, there may be something quite similar going on at the centers of large neutron stars.
Posted by steve agnew at 6:55 PM