Jets in Space Caught by Fermi Measure

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Spectrum Spectrum's picture
Jets in Space Caught by Fermi Measure

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Spectrum Spectrum's picture

For those interested in some science, or not.

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In this illustration, one photon (purple) carries a million times the energy of another (yellow). Some theorists predict travel delays for higher-energy photons, which interact more strongly with the proposed frothy nature of space-time. Yet Fermi data on two photons from a gamma-ray burst fail to show this effect, eliminating some approaches to a new theory of gravity. The animation link below shows the delay scientists had expected to observe. Credit: NASA/Sonoma State University/Aurore Simonnet


See: Fermi Telescope Caps First Year With Glimpse of Space-Time

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"This measurement eliminates any approach to a new theory of gravity that predicts a strong energy dependent change in the speed of light," Michelson said. "To one part in 100 million billion, these two photons travelled at the same speed. Einstein still rules."

What I want people to know now is that a question arises about "theoretical conclusions drawn" about joining, "Electromagnetism and Gravity." This basically what their saying?


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We see a pulsar, then, when one of its beams of radiation crosses our line-of-sight. In this way, a pulsar is like a lighthouse. The light from a lighthouse appears to be "pulsing" because it only crosses our line-of-sight once each time it spins. Similarly, a pulsar "pulses" because we see bright flashes every time the star spins.

For some it is not a hard thing to remember when the Sun, or a light has blinded one to seeing what is in front of you, it aligns to the realization, that if one shifts to the right or left, they can come out of the bright directional gaze of emissions from that other time.

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M87's Energetic Jet., HST image. The blue light from the jet emerging from the bright AGN core, towards the lower right, is due to synchrotron radiation.

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Simple Jet Model. A simple model for a jet is a relativistic sphere emitting synchrotron radiation. This simple model hides the complexity of a real jet but can still be used to illustrate the principles of relativistic beaming.

 

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Electrons inside the blob(Crab Nebula) travel at speeds just a tiny fraction below the speed of light and are whipped around by the magnetic field. Each change in direction by an electron is accompanied by the release of energy in the form of a photon. With enough electrons and a powerful enough magnetic field the relativistic sphere can emit a huge number of photons, ranging from those at relatively weak radio frequencies to powerful X-ray photons.-(In brackets added by me)See: Relativistic beaming

So the spectrum at this end reveals Gamma ray perspective that when considered under this watchful eye, reveals views of our Sun and views of the Cosmos of very different ranges used in that spectrum, still, shows the Sun.

It is not so difficult to realize then how much energy is directed that one could say that what we had seen in the light effect can help spotters on ships realize the coastlines during those frightful storms at sea.

(click on image for larger viewing)

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The bluish glow from the central region of the nebula is due to synchrotron radiation.



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Synchrotron radiation is electromagnetic radiation, similar to cyclotron radiation, but generated by the acceleration of ultrarelativistic (i.e., moving near the speed of light) charged particles through magnetic fields. This may be achieved artificially in synchrotronsstorage rings, or naturally by fast electrons moving through magnetic fields in space. The radiation produced may range over the entire electromagnetic spectrum, from radio wavesinfrared light, visible light, ultraviolet light, X-rays, and gamma rays. It is distinguished by its characteristic polarization and spectrum.

remind remind's picture

So low energy and high energy still  is theorized to travel at the same speeds, as has been stated all along, then?

 

Thank you for all of that spectrum, it was a respite.

Spectrum Spectrum's picture

remind wrote:

So low energy and high energy still  is theorized to travel at the same speeds, as has been stated all along, then?

 

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Astronomers said the gamma-ray race was one of the most stringent tests yet of a bedrock principle of modern physics: Einstein’s proclamation in his 1905 theory of relativity that the speed of light is constant and independent of its color, or energy; its direction; or how you yourself are moving.

“I take it as a confirmation that Einstein is still right,” Peter F. Michelson of Stanford, principal investigator for Fermi’s Large Area Telescope and one of 206 authors of a paper published online Wednesday in the journal Nature, said in an interview. See:7.3 Billion Years Later, Einstein’s Theory Prevails

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Thank you for all of that spectrum, it was a respite.

Hey with what's happening in BC with Kitimat and Elk Falls, Forest industry, HST, and a lot of politicians with their heads up their ***, it's good to have that respite.Smile

Best,

remind remind's picture

Ya, was wondering when they would hit Kitmat, it was existing in a little bubble.

 

It certainly is good to have a respite, and I am not surprised by the findings, as the micro and macro, of relatively, within our perception of the speed of light, would have to exist.

 

All things being equal, after all.