The Fingers of God effect: Not evidence for a geocentric universe

Abstract: When looking at large scale maps of the distribution of galaxies around our position is space it may be noticed that there seem to be finger like structures of these galaxies pointing back at the earth. This is called the Fingers of God (FOG) effect.  Some creationists have attempted to use this as an argument for an absolute geocentric universe. But the FOG effect can be simply explained by reasonable assumptions on the dynamics of galaxies within their clusters. Therefore it would be very naïve to use it as evidence in support of a galactocentric universe or an absolute geocentric universe. (This article is somewhat technical. First published in the Journal of Creation 22(2):75-78, 2008; edited here.)

Introduction

fingerofgod

Highlighted in red is a galaxy cluster plotted in direction on the sky and redshift (written in units of velocity (km/s)). The FOG effect is clearly seen in redshift space. Earth is at the apex of the pie slice. The argument is that the FOG effect results only in redshift space and not in real space when the intra-cluster motions of the constituent galaxies are properly taken into account.

On occasion I have heard discussed among creationists, that considered the Fingers of God (FOG) effect as evidence for a galactocentric1 universe and some foolishly even considered it evidence in favour of a geocentric2 universe.  The phenomenon is well known and in Wikipedia it is reported.

“Redshift-space distortions are an effect in observational cosmology where the spatial distribution of galaxies appears squashed and distorted when their positions are plotted in redshift-space (i.e. as a function of their redshift) rather than in real-space (as a function of their actual distance). The effect is due to the peculiar velocities of the galaxies causing a Doppler shift in addition to the redshift caused by the cosmological expansion.”3

From this it would seem that the FOG effect results from Doppler motion of galaxies within their clusters causing a line of sight effect in redshift space4 (explained below), which produces the effect of fingers of galaxies all pointing towards the observer if plotted on a map. But if one realizes that we cannot definitively know how galaxies in the Universe are distributed without making certain assumptions, then how can one use this effect as evidence for a galactocentric universe or even a geocentric universe?

Galaxies clusters are observed with constituent galaxies numbering in the thousands. It does not seem to be unreasonable to assume that within those clusters the galaxies have random orbit trajectories, meaning they orbit around their common centre with different trajectories. Generally clusters appear to be approximately spheroidal or elliptical in shape. And they are believed to be viralised.5  If the mass of the cluster, which includes large quantities of hot intercluster gas comprising about 3 to 4 times the mass of the constituent galaxies, is in hydrodynamic equilibrium then the galaxies are mutually bound to each other. This means on the Hubble timescale or the usually stated age of the universe,6 more than ten billion of years, the cluster will not break up. Using this fact, astrophysicists estimate the dynamical mass of the cluster by either measuring the temperature of the x-ray emitting gas or calculating the dispersion7 of a number of constituent galaxies, which act as tracers. This makes the implicit assumption that the galaxy clusters have had sufficient time in the Universe to come into dynamical equilibrium. Continue reading

Big bang birthed from Cosmic Egg

–a pagan story of origins

In 1927 Roman Catholic priest Georges Lemaîtredeveloped his theory of the expanding Universe and published a paper describing his theory,2 which envisioned a universe with all galaxies moving away from all other galaxies. At that time the Universe was considered to be static. Lemaître solved the gravitational field equations of Einstein’s General Relativity theory for the Universe, taking into account the work of Alexander Friedmann, who published in 1922 (but died in 1925). From that he concluded the Universe must be expanding or contracting.  Nowadays that formalism for the family of models they produced is called the Friedmann-Lemaître solution describing the big bang universe. From that Lemaître developed the idea of the Universe having a unique origin at some past moment of time.

lemaitre

Figure 1: Belgian priest Reverence Monsignor Georges Henri Joseph Édouard Lemaître (17 July 1894 – 20 June 1966) was an astronomer and professor of physics at the Catholic University of Leuven. Credit: Wikipedia

In 1931, Lemaître described the Universe as exploding from a ‘Cosmic Egg’, which was like a giant atom, with all the mass of the Universe. His idea was that the myriads of galaxies of stars in the Universe formed out of and expanded out from that initial state of the ‘Cosmic Egg’.  Lemaître imagined that the Universe started from a fluctuation of his first quantum of energy (his ‘Cosmic Egg’) when space and time were not yet defined.3

You might think that Lemaitre looked to the Scriptures, to Genesis, for a clue here (for an origin in time) but his reasoning was man’s not God’s. His assumption was a finite unbounded universe, having no centre nor edge–that is, there are no preferred points in his universe. And by winding time backward one could imagine that all points would come to a common point at a finite period of time in the past. Thus he reasoned that this must mean that the Universe had a beginning in time—hence a creation at a moment in the past. Apparently Sir Arthur Eddington, a Quaker, found Lemaître’s idea of creation philosophically repugnant, as there was a prior belief among cosmologists at the time of the Universe eternally existing.

From his quantum of energy—which he called a “primeval atom”4—his theory predicted that this was the material from which all matter—the stars and galaxies—was derived. He predicted that some form of background radiation, even cosmic rays, would be found, the leftovers of that initial explosion of matter into all the Universe.5 That is not accepted by big bang astronomers today.

Eventually from his theory the origin of the Universe was formalised not from a ‘Cosmic Egg’ but from a singularity of zero dimensions with the Universe smoothly expanding out of it, and beginning in an intensely hot fireball stage. It wasn’t until 1949 that this was, in derision, called a ‘big bang’ on a BBC radio program by Sir Fred Hoyle, while discussing what his opponents believed. Hoyle was very much against any idea of a big bang universe, as he firmly believed in the steady state model.

Now the story so far, many people know. But do they know that Lemaître was cheated out of his claim to fame?6 Continue reading

Mature creation and false information in starlight

Some biblical creationists argue for a mature creation as an explanation for the history of Genesis to align with modern cosmological observations. Don DeYoung1 is one who argues that such a view is not refutable, and he is quite right. But neither is any cosmology as really cosmology is not science.2 It is not subject to repeatable laboratory type tests that is normally required in science. Its goal is to reconstruct the history of the Universe, and in so doing cosmology is more akin to evolutionary biology or geology in which researchers must simply accept some facts as given. That makes cosmology more like a religion, a belief system, with its unprovable axioms upon which everything else is based.

De Young argues that all biblical creationist cosmogonies (i.e. worldviews) contain some level of mature creation, which I do agree with. The problem, though, which he does not address, is the issue of false information in starlight.

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Credit: ESA & NASA; Acknowledgement: E. Olszewski (U. Arizona)

We know that the Universe is very large. Light travels very fast indeed, yet light travelling at its measured speed travels one light-year distance in one year (by definition). The Bible tells us that the Universe is only about 6000 years old, but the distances light needs to travel from the most distant sources to Earth, since creation, is about 14 billion light-years. So DeYoung, and others like him, claim that God created the ‘light in transit’. He says that this explanation is valid as it is equivalent to the mature creation of our sun or even to adult forms of life created on Earth (i.e. Adam and Eve created in the Garden as adults and not babies or embryos). On some level this may be true, but the ‘light in transit’ remains a problem in terms of God’s truthfulness.

No doubt DeYoung, and those others who hold similar views, believe that God is 100% truthful, yet they see no problem with false information in the ‘light in transit’. DeYoung excuses it by saying that it is nevertheless true in the mind of God. But there still remains a problem.

In Psalm 91 (and other passages in the Bible) we are told that the heavens tell us of God’s workmanship. Is this also only in the mind of God? Is everything that is in the astrophysical heavens just part of a big light show, which has no reality, such as the reality we can discover with the rest of our senses here on Earth? I don’t think so.

So how do you justify ‘light in transit,’ which does not relate back to real events in the past history of this Universe? If you want to take the approach of the least number of assumptions, that is, using Occam’s Razor,3 a law of economy, then I would say that a time-dilation model or a time-convention model is a far simpler and better choice.4 For example, I could construct a cosmogony (description of the origin of the Universe) where our Creator God makes the sun, the moon, the planets and all the stars and galaxies on Day 4 of Creation Week, according to Genesis 1.5 But in so doing He slows the rate of clocks on Earth during that day only. Really that means he slows the rate at which time passes on Earth relative to elsewhere in the cosmos. He makes some galaxies initially and places them throughout the Universe, like unfurling a flag or tent. It does not necessarily involve any stretching of the fabric of space, or of time or of space-time. This Universe is not an expanding, but created static, with the galaxies essentially in the same locations now as when they were created 6000 years ago, as measured by Earth clocks. Continue reading

Quasars exhibit no time dilation and still defy a big bang explanation

In April 2010, Marcus Chown wrote in an article entitled “Time waits for no quasar—even though it shouldfor New Scientist online,

“Why do distant galaxies seem to age at the same rate as those closer to us when big bang theory predicts that time should appear to slow down at greater distances from Earth? No one can yet answer this new question [emphasis added] … .”

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Figure 1: An artist’s depiction of what a quasar is believed to be — a supermassive black hole at the centre of a galaxy.

He says no one can answer this question. But this question has already been answered before it was even asked. To understand this we need some background.

Quasars are assumed to be supermassive black holes with the mass of a galaxy2 that are the early progenitors of the mature galaxies we see around us today. See Fig. 1. They nearly all exhibit extremely large redshifts in their emitted light and the big bang community believes that these redshifts are nearly entirely due to cosmological expansion. Therefore it follows that these massive objects are extremely bright and are being observed at some stage only several billion years after the alleged origin of the Universe in the big bang. Hence, from their redshifts when interpreted as resulting from cosmological expansion of the Universe, using Einstein’s general theory of relativity, it follows that the greater the redshift the greater the effect of the distortion of time at the quasar. That is, local clocks on quasars at greater redshifts should run slower than local clocks on quasars at lower redshifts, which are interpreted to mean that they are closer to us. (This post is based on my original article “Quasars again defy a big bang explanation” published in the Journal of Creation 24(2):8-9, 2010.)

No time dilation

But that is where the problem comes in. Mike Hawkins of the Royal Observatory in Edinburgh, UK, looked at light from quasars and he found no time dilation. He used observations of nearly 900 quasars made over periods of up to 28 years. According to the article, he “compared patterns in the light between quasars about 6 billion light years from us with those at 10 billion light years away.” But the distances assigned here are actually derived from the assumed cosmology and the Hubble law. What was really measured was the redshifts of those quasars. However the problem arises because quasars scintillate or their brightness varies. This scintillation can have periods of as little as a week, or even a day. That tells us something about the size of the object at the core, since that time should be of the scale of the light-travel time across the light-emitting region.2

Chown writes,

“All quasars are broadly similar, and their light is powered by matter heating up as it swirls into the giant black holes at the galaxies’ cores. So one would expect that a brightness variation on the scale of, say, a month in the closer group would be stretched to two months in the more distant group.”

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Is the Universe really expanding — the evidence revisited

3d expansion question markThe Hubble law, determined from the distances and redshifts of galaxies, for the past 80 years, has been used as strong evidence for an expanding universe. In 2011 I reviewed various lines of evidence for and against this claim. It included the lack of evidence for the necessary existence of time dilation in quasar and gamma-ray burst luminosity variations, angular size tests for galaxies as a function of redshift, the Tolman surface brightness test which is sensitive to expansion of the Universe, evidence that the CMB radiation is not from the background, which it should be if from the big bang fireball as alleged, intergalactic absorption lines due to hydrogen clouds and Lyman-α systems, and what they do tell us. Here I present that information again in light of my current understanding.

This review concluded that the observations could be used to describe either a static universe (where the Hubble law results from some as-yet-unknown mechanism) or an expanding universe described by the standard Λ cold-dark-matter model. In the latter case, the imposition of size evolution of galaxies is necessary to get agreement with observations. Yet the simple non-expanding (i.e. static) Euclidean universe fits most data with the least number of assumptions. I made a straw table comparison with the various lines of evidence to see how they stack up. It was found not to be definitive and hence the result equivocal. From this review it became quite apparent that there are still many unanswered questions in cosmology and it would be a mistake to base one’s theology on any particular cosmology. Far better to base you cosmology and theology on the clear narrative historical prescription in the Genesis account and elsewhere in the Scriptures. (This was first published in two parts in the Journal of Creation 25(3):109-120, 2011.)

Introduction

Ever since the late 1920s, when Edwin Hubble discovered a simple proportionality1 between the redshifts of the light coming from nearby galaxies and their distances, we have been told that the Universe is expanding. This relationship—dubbed the Hubble Law—has since been strengthened and extended to very great distances in the cosmos. Nowadays it is considered to be the established dogma of the expanding big bang universe. This means that the space that contains the galaxies is expanding and that the galaxies are essentially stationary in that space, but being dragged apart as the universe expands.

Hubble initially interpreted his redshifts as a Doppler effect, due to the motion of the galaxies as they rushed away from our location in the Universe. He called it a ‘Doppler effect’ as though the galaxies were moving ‘through space’—the space itself is not expanding but the galaxies are moving through space, and that is how some people, especially astronomers, initially perceived it. This is different to what has now become accepted, but observations alone cannot distinguish between the two concepts. Later in his life Hubble varied from his initial interpretation and said that the Hubble Law was due to some hitherto undiscovered mechanism, but not due to expansion of space—now called cosmological expansion.

The big bang expanding universe model essentially offers a coherent paradigm or explanatory framework which can, in principle, provide answers to a wide range of key cosmological questions; examples are the origin of extragalactic redshifts, the dynamical state of the Universe (i.e. not apparently collapsing under gravity), Olbers’ paradox (why is the night sky dark?), the origin of the cosmic microwave background (CMB) radiation, the origin of galaxies, and the origin of the elements. The fact that its answers to some questions are currently unsatisfactory or unconvincing does not change the basic point that such a model will always be preferred to a more limited model such as a static Euclidean universe, which does not attempt to address such questions. In this sense the big bang model is necessarily preferable regardless of one’s theological position. Continue reading

Why is the night sky black?

Why does the night sky appear black? Why isn’t it white-hot? This is an important question.

When we look up on a moonless night, except for the small number of stars we can see with our unaided eyes (about 2500 at any one time), why is it so pitch black?  The answer may not be as obvious as you might think.

whyisthenigh

The blackness of space. Beth Scupham/flickr, CC BY-SA

The 19th century astronomer Olbers posed a paradox. If you imagine as you look out in space, even though galaxies and hence stars are great distances from each other, if space extends far enough, eventually every line of sight in every direction should finish on a star. If the Universe was infinite in size and filled with stars this would have to be the case. Thus why isn’t the night sky burning bright? Why isn’t it white-hot like the sun? Continue reading

An eternal quantum potential or an eternal Creator God

JGH1As a teenager I co-authored a book comparing the competing cosmologies in 1968. They were the Big Bang Theory (BBT) and the Steady State Theory (SST). Even though the discovery of the cosmic microwave background (CMB) radiation provided a big boost to big bang theories at that time, I preferred the SST because it had no origin in time. You see, I was an atheist then and I reasoned that if the Universe had no beginning then it didn’t need a Creator and thus I had no God that I needed to obey.

The fact that the BBT has an origin in time—a unique past boundary—has been particularly vexing for the atheist believers in that cosmogony. Using various approaches the BB theorists have been trying to eliminate the beginning, by replacing the Creator with an eternal quantum potential, which existed for eternity past, and then 13.8 billion years ago exploded into the big bang universe, … or, so they say. For now though, they are stuck with the universal origin in a singularity, which in itself has led them to worshipping the Universe itself.

The explanation given in the Bible I now find so much more satisfying. Any cosmogony, which attempts to correctly describe real history, must be consistent with and follow not only the biblical time scale but also follow the sequence of events in the Genesis account. I present a very brief summary of a few biblical creationist models. These models acknowledge the eternal Creator God as the source of everything in the Universe.

An illustrated talk presented at the Creation Ministries International 2016 Creation SuperCamp at The Tops Conference Centre, NSW, 9:45 pm Wednesday January 6, 2016.

Video of Powerpoint presentation

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