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Einstein’s gravity theory passes toughest test yet

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Record-breaking pulsar takes tests of general relativity into new territory

eso1319a
Astronomers have used ESO’s Very Large Telescope, along with radio telescopes around the world, to find and study a bizarre stellar pair consisting of the most massive neutron star confirmed so far, orbited by a white dwarf star. This strange new binary allows tests of Einstein’s theory of gravity — general relativity — in ways that were not possible up to now. So far the new observations exactly agree with the predictions from general relativity and are inconsistent with some alternative theories. The results will appear in the journal Science on 26 April 2013….
… Read more at http://www.eso.org/public/news/eso1319/

Read also: A Massive Pulsar in a Compact Relativistic Binary

Written by physicsgg

April 25, 2013 at 7:18 pm

Posted in ASTRONOMY, ASTROPHYSICS, RELATIVITY

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  1. Troubling Solar System: Dennis Sciama wrote a small but very useful book: The Physical Foundations of General Relativity in 1969. In the preface he says: Isaac Newton’s laws of motion are logically incomplete and that situation leads us, step by step, to full complexity of Albert Einstein’s General Relativity. However, it must be noted that Prof. Frank Wilczek (the present 62-year old American leader of theoretical physics and a Nobel Laureate) had lot of trouble in learning “classical” mechanics about 45 years ago – when he was in school / college, in Physics Today, October 2004. My research in physics education shows that the “logical” incompleteness of Newton’s laws has not been fully understood as yet and so i) still there are some global and chronic problems in learning a very basic topic – that is circular motion and ii) that is why physics is not adequately popular in society – as indicated by the events to popularize physics in the Einstein Year: 2005. So, I hope, although “experimental” evidence is supporting Einstein’s G.R., at least some physicists will give attention to “conceptual” problems in physics – as I have said in my comment on Prof. Carl Wieman’s article in CHANGE. Feel free to contact me using 09922467861.

    Delta747

    April 26, 2013 at 1:19 pm

  2. Discrete Scale Relativity predicts that the total masses of gravitationally bound stellar systems will have discrete values that are integer multiples of 0.145 solar mass.

    The Pulsar-White Dwarf system reported in Science (04/26/13) has a total mass of 2.182 +/- 0.04 solar mass. [available at http://arxiv.org/abs/1304.6875 .]

    This value agrees with one of DSR’s definitively predicted values at the 99.997% level (15 times 0.145 solar mass = 2.175 solar mass).

    For 14 other definitive predictions, see: http://www.academia.edu/2917630/Predictions_of_Discrete_Scale_Relativity .

    For more observational evidence of discrete stellar masses, see prediction #10 at the link above.

    Robert L. Oldershaw
    http://www3.amherst.edu/~rloldershaw
    Discrete Scale Relativity/Fractal Cosmology

    Robert L. Oldershaw

    April 27, 2013 at 4:48 am


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