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2016-04-28T00:00:00.000Z

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Wrong Richard Lieu?

Dr. Richard Lieu

Professor

UAH

HQ Phone: (256) 824-6800

Email: l***@***.edu

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UAH

301 Sparkman Drive

Huntsville, Alabama 35899

United States

Company Description

The mission of the Office for Economic Development at UAH is to facilitate the creation of jobs and economic prosperity by building innovative and competitive companies and industries. The Office specializes in corporate and economic development strategi ... more

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Background Information

Affiliations

Postdoctoral Fellow
University of Calgary

Education

BSc

Imperial College London

PhD

X-ray astronomy

Web References (68 Total References)


PTM: II - Lecturers

www.wyp-ptm.org [cached]

Prof. Richard Lieu

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Prof. Richard Lieu
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Richard Lieu is Professor of Physics at the University of Alabama, Huntsville.His degrees of higher learning were all obtained at Imperial College London, with BSc, DIC in Physics, and PhD in X-ray astronomy.In 1981 he joined the University of Calgary (Canada) as a Postdoctoral Fellow, and in 1985 returned to Imperial College to work on the EUV camera aboard ROSAT.In 1991 he became part of the EUVE team at UC Berkeley, and in 1995 came to Huntsville as Faculty.Lieu worked on many areas (theoretical and observational) of high energy astrophysics, including the quantum electrodynamics of strong (pulsar) magnetic fields, acceleration of cosmic rays in relativistic shocks, and the first EUVE source catalog.
His most notable achievement is the discovery in 1995 of a new (soft X-ray and EUV) emission component in clusters of galaxies - a result which was subsequently confirmed by several satellite missions, including the recent XMM Newton observations which provided the clincher evidence that the originally detected signals are real.Recently Lieu's attention was directed at testing General Relativity and quantum gravity by means of the wealth of existing data from many astronomy missions.His findings are published (or about to appear) in five Astrophysical Journal papers..


Lecturers

www.wyp-ptm.org [cached]

Prof. Richard Lieu

...
Prof. Richard Lieu
...
Richard Lieu is Professor of Physics at the University of Alabama, Huntsville.His degrees of higher learning were all obtained at Imperial College London, with BSc, DIC in Physics, and PhD in X-ray astronomy.In 1981 he joined the University of Calgary (Canada) as a Postdoctoral Fellow, and in 1985 returned to Imperial College to work on the EUV camera aboard ROSAT.In 1991 he became part of the EUVE team at UC Berkeley, and in 1995 came to Huntsville as Faculty.Lieu worked on many areas (theoretical and observational) of high energy astrophysics, including the quantum electrodynamics of strong (pulsar) magnetic fields, acceleration of cosmic rays in relativistic shocks, and the first EUVE source catalog.
His most notable achievement is the discovery in 1995 of a new (soft X-ray and EUV) emission component in clusters of galaxies - a result which was subsequently confirmed by several satellite missions, including the recent XMM Newton observations which provided the clincher evidence that the originally detected signals are real.Recently Lieu's attention was directed at testing General Relativity and quantum gravity by means of the wealth of existing data from many astronomy missions.His findings are published (or about to appear) in five Astrophysical Journal papers..


Earth Events, earthquakes, volcanoes, hurricanes, earthquake maps, Katrina, Rita, Solar Flares, Coronal Mass Ejection, CME, Freq

www.meandermagazine.com [cached]

Results of this research by Dr. Richard Lieu, a UAH physics professor, and Dr. Jonathan Mittaz, a UAH research associate, were published Monday in the "Astrophysical Journal."

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Proving Einstein right might become a problem for the standard cosmological model of how the universe was formed because Einstein's theory also predicts that the cosmic microwave background shouldn't look the way it does, according to Lieu.
The problem, he says, is that cool spots in the microwave background are too uniform in size to have traveled across almost 14 billion light years from the edges of the universe to Earth.
"Einstein's theory of how gravity attracts light, coupled with the uneven distribution of matter in the near universe, says you should have a spread of sizes around the average, with some of these cool spots noticeably larger and others noticeably smaller," he said.


Results of this research by Bonamente, ...

www.sciencedaily.com [cached]

Results of this research by Bonamente, Jukka Nevalainen of Finland'sHelsinki Observatory and UAH's Dr. Richard Lieu were published Oct. 20 in the "Astrophysical Journal.


New look at microwave background may cast doubts on big bang theory | SpaceRef - Your Space Reference

www.spaceref.com [cached]

Results of this research by Dr. Richard Lieu, a UAH physics professor, and Dr. Jonathan Mittaz, a UAH research associate, were published Monday in the "Astrophysical Journal."

...
Proving Einstein right might become a problem for the standard cosmological model of how the universe was formed because Einstein's theory also predicts that the cosmic microwave background shouldn't look the way it does, according to Lieu.
The problem, he says, is that cool spots in the microwave background are too uniform in size to have traveled across almost 14 billion light years from the edges of the universe to Earth.
"Einstein's theory of how gravity attracts light, coupled with the uneven distribution of matter in the near universe, says you should have a spread of sizes around the average, with some of these cool spots noticeably larger and others noticeably smaller," he said.
...
The problem, says Lieu, is that not only is the average about right, but far too many of the spots themselves are "just right" with too little variation in sizes.Given the uneven distribution of matter in an expanding universe, he says, we should see a broader size distribution among the cool spots by the time that radiation reaches Earth.
The distribution of matter and the expanding universe are important because they have opposite effects on the "shape" of space and the paths taken by light, microwaves and other radiation as they zip through the cosmos.
An expanding universe would tend to "stretch" space, causing radiation to disperse as it flies through.That dispersion would make objects appear to an observer to be smaller than they really are, as if the light went through a concave lens.
"As far as we know," said Lieu, "the expansion takes place smoothly everywhere.
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"But you don't see this fluctuation," said Lieu.
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If the cool spots are too uniform to have traveled to Earth from near the beginning of time, Lieu says cosmologists are left with several alternative explanations.
The first is that the cosmological parameters (including the Hubble constant, the amount of dark matter, etc.) used to predict the original, pre-lensed sizes of the cool and hot spots in the microwave background might be wrong.These parameters could be adjusted to predict a narrower range of sizes on either side of the "pre-lensed" average.
Then, after the effect of gravitational lensing is folded in, the resulting average size and size dispersion would agree with what WMAP actually saw, said Lieu."This approach is the most conservative, but would still result in an overhaul of the standard model."
"Or, could it be that although the radiation itself is from far away, some of these cool spot structures are caused by nearby physical processes and aren't really remnants of the universe's creation?"Lieu asked.
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In research published April 10 in the "Astrophysical Journal, Letters," Lieu and Mittaz found that evidence provided by WMAP point to a slightly "super critical" universe, where there is more matter (and gravity) than what the standard interpretation of the WMAP data says.

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