-
-
----------------- 1823 - Dark Matter and the extinction of the Dinosaurs.
-
- Abell 2744 is a cluster of 4 galaxies 4 billion lightyears away. The mass of this cluster is 2 quadrillion Solar Mass ( 2*10^15 times the mass of the Sun). Its immense gravity bends the light coming from unseen background galaxies, acting as a Cosmic magnifying glass.
-
- This Gravitational Lens effect was not demonstrated until 1979 when astronomers discovered a “double “ image of a Quasar. Since then one astronomical experiment has recorded over 2,000 lensing images annually.
-
- Recently the Hubble Space Telescope focused on lensing due to Abell 2744 and has imaged a galaxy existing just 500,000,000 years after the Big Bang. It is only a faint red smudge, actually 3 smudges since the image arrived traveling multiple paths. The ancient galaxy is 40 million Solar Mass and several hundred lightyears across. Our galaxy is 1 million lightyears across ( 10^10^21 m / 9.46 *10^15 m / LY = 1*10^6)
-
- Another phenomena experienced in Gravitational Lensing is how astronomers imaged the same supernova explosion 4 different times, days and weeks apart. Again, as light took different paths trough space-time to reach us. The supernova was 9.4 billon lightyears away.
-
- Astronomers hope to study these distant supernovae to understand the accelerating expansion of the Universe, now know as Dark Energy. Einstein knew it as the Cosmological Constant. But, it is not “constant” it is accelerating.
-
- How does Dark Energy inflate the Universe? How can expanding space keep accelerating? Where does the energy to do this come from?
-
- Is Dark Energy a constant expansion and since more space is constantly expanding the distance between gravity centers is always increasing at an accelerating rate because there is more space to expand. Dark Energy is stronger than gravity. Gravity force decreases with the square of distance (R^2):
-
--------------------------------- F = G * M * m / R^2
-
- Is Dark Matter trying to pull things together and Dark Energy trying to pry things apart? If they are equal will they should all cancel out? The Universe started from nothing and maybe will return to nothing?
-
- Another tool for astronomers should be Gravitational Waves. Any accelerating mass should send out gravitational waves, ripples that stretch and squeeze the fabric of space-time.
-
- Gravity waves are so weak that extreme mass accelerations are required for astronomers to be able to detect them. Events such as colliding Blackholes, merging neutron stars, even the Big Bang itself are required. ( See review about LIGO).
-
- In 1974 astronomers observed a binary neutron star , “ a pulsar”, over several years the pulsar orbited another body and the order shrank closer to the companion by 3.5 meters per year. This orbital decay exactly matched the math in General Relativity assuming for radiating energy due to gravitational waves.
-
- The measurements could be made due to the extreme accuracy of the timed pulses from Pulsar. The technology is astronomically difficult but we are getting better and closer every day. To measure the change in distance between Earth and the Pulsar as Earth bobs up and down on a gravity wave is like measuring 1 kilometer change over 100 light years ( one part in 10^15). The Earth is like the “ boat” and we are trying to detect the waves on the “ Ocean”.
-
- Lisa Randall has a book out about “ Dark Matter and Dinosaurs”. and “ Warped Passages: Unraveling the mysteries of the Universe”.
-
- It explains the theory that Earth’s path around the Galaxy is riding on a wave ( actually the whole solar system). The whole trip around the center of the Milky Way Galaxy takes 225.3 million years. The Earth has circled it 20 times ( 4,600 / 225.3 = 20 ).
-
- The Galaxy is seen as a flat disk. The complete orbit wobbles above and below this disk passing through every 32 million years. So the wobbling wave has past through the plane of the disk 7 times each orbit. ( 225.3 / 32 = 7). And our Solar System has passed through the disk 144 times over its entire history. (4,600 / 32 = 144). The last time about 32 million years ago.
-
- The Earth Sun distance is 1 Astronomical Unit, (1 AU = 93 million miles). The Oort cloud lies 1,000 to 100,000 AU containing billions of icy objects, potential comets. If one of these got knocked out of orbit and hit Earth it could explain what happened to the dinosaurs 66 million years ago.
-
---------------------- What does all this mean?
-
---------------------- The disk is 85% Dark Matter. Paleontologists tell us that 66 million years ago a giant, 9-mile diameter, comet impacted Earth at Chicxulub in the Yucatan. That impact wiped out 75% of all the species across the planet. The dinosaurs all went extinct. Survivors evolved into birds and apes. We are related with the similar DNA as these primates.
-
- Could it be that this impact was caused by our path through the disk of the galactic Dark Matter?
-
- Dark Matter has yet to be explained or detected directly. It is detected indirectly with its interaction with gravity. Dark Matter does not interact with electromagnetic radiation. But, 85% Dark Matter would have an immense gravitational influence on our Solar System as we passed through.
-
- Astronomers think that Dark Matter tends to be concentrated in large halos around the galaxies like giant bubbles. This author’s proposal is that Dark Matter also exists amid the stars, between the planets and within gas clouds all through our Galaxy disk.
-
- Our Solar System revolves around the center of the Galaxy oscillating above and below the concentrated disk of Dark Matter. We pass trough the disk every 32 million years . Mass extinctions on Earth have occurred ever 25 to 35 million years.
-
------------------------ Could this just be coincidence?
-
- There are 100 billion stars in our Galaxy. We are searching among these stars to detect this Dark Matter. We must learn a lot more to support this hypothesis.
-
- We are all descendents of the Chicxulub Comet impact. Could Dark matter play a part in our evolution on the planet? Stay tuned an announcement will be made shortly.
-
---------------------------------------------------------------------------------------
- Request these Reviews to learn more:
-
- #1820 - Dark Matter - what do we know about it matters.
-
- This review also lists 15 other reviews on the subject. Have at it.
-
- --------------------------------------------------------------------------------------
----------------- RSVP, Pass it on to whomever is interested. ----------------
--- Some reviews are at: -------------- http://jdetrick.blogspot.com -----
-- email comments, corrections, request for copies or Index of all reviews
- to: ------- jamesdetrick@comcast.net ------ “Jim Detrick” -----------
- https://plus.google.com/u/0/ -- www.facebook.com -- www.twitter.com
----- 707-536-3272 ---------------------- Monday, February 1, 2016 -----
------------------------------------------------------------------------------------------
No comments:
Post a Comment