Whimsical WIMPS disappear from view under Planck’s gaze

Posted: September 14, 2012 by tallbloke in Astronomy, Astrophysics, Energy, Gravity

From the Institute of Physics:

Image courtesy IOP Physics World

The latest results from the Planck space telescope have confirmed the presence of a microwave haze at the centre of the Milky Way. However, the haze appears to be more elongated than originally thought, which casts doubt over previous claims that annihilating dark matter is the cause of the emissions.

A roughly spherical haze of radiation at the heart of our galaxy was identified as far back as 2004 by the Wilkinson Microwave Anisotropy Probe (WMAP). Since then, some astrophysicists have suggested that this haze is produced by annihilating dark-matter particles.

One of the telescope’s main objectives is to accurately map fluctuations in the CMB, so it is well suited to subtracting that radiation to reveal the haze.

With the presence of the haze independently verified, focus has returned to determining its origin. After its original discovery, some researchers, including Dan Hooper of Fermilab near Chicago, US, argued that annihilating dark matter could explain the galactic haze. Dark matter has long been thought to bind galaxies together, but detecting it directly has remained elusive. In Hooper’s mechanism, dark-matter particles annihilate to produce conventional electrons and positrons. These particles then spiral around the Milky Way’s magnetic field to produce the radiation we see as the microwave haze.

However, as well as confirming its existence, Planck was also able to reveal details of the shape of the haze. “The new results seem to suggest that the haze is elongated rather than spherical [as previously thought],” explains Hooper, who was not involved in the Planck research. “Simulations suggest that we would expect to find dark-matter halos that are roughly spherically symmetric,” he adds. There might still be room for a partial dark-matter explanation, however.

It still smells like dark matter to me
Dan Hooper, Fermilab

Comments
  1. vukcevic says:

    There might still be room for a partial dark-matter explanation, however.
    Oh, yeah ?
    Run for cover, ‘Eric the Bloodaxe’ will be furious. 🙂

  2. Wayne Job says:

    Recently a it was stated that the standard model of physics was dead by a guru in the field, after a hundred years of going backward, this is a good outcome.

    The standard model of the universe is also under very large stresses of non belief as the fudge factors of dark energy and dark matter are proving harder to find than black and worm holes.

    The big bang seems to be problematic at this point as new technology looks further and finds new stuff.

    Interesting times we live in, all we need is a few giant thinkers like we had in the past, they will need to be self taught as our universities have been teaching what to think and not how to think.

  3. tallbloke says:

    Ah, I love the smell of failed paradigms in the morning. Smells like… revolution. 🙂

  4. adolfogiurfa says:

    If we look at our galaxy, at several wave lengths there is no way to find a “black hole” there, …..except in the psychological realm: A “projection” of an internal black hole.
    The most probable is that at the center of our galaxy we can find the highest wave frequencies, and the higher frequencies densities. Everything evolves here according to the laws governing waves as in music.

  5. adolfogiurfa says:

    And perfectly according the Fibonacci series:

    And….worst of all: All the Suns connected, as a seen in Andromeda:

  6. vukcevic says:

    Hi Adolfo
    Like the idea behind your spiral

  7. adolfogiurfa says:

    @Vukcevic: Hi, Vuk! It´s simple and that is why, perhaps, it is so difficult to digest by the “intelligentsia”.
    Just to press down a DO at any piano keyboard and if we hear with attention, we´ll almost “see” a galaxy evolving: From the center DO to its farther extreme: A whole “interior” octave developing.

  8. Bruckner8 says:

    adolpho, why would the universe use a man-made Equal Temperament (and thus be non-harmonic) in its “pattern?” I’d be a lot more impressed if you can show that it’s a “Harmony of the Spheres,” where all intervals are based on the Harmonic Series.

  9. adolfogiurfa says:

    @Bruckner8 If things are seen too close they seem chaotic. The octave has “gaps” or intervals where one development interacts with others around: input and output; call them “quanta”, discrete amounts of energy going in or going out, the same as when we read this or eat a hamburger….