I find that smile disturbing...
Posted on 10/24/2016 7:23:59 PM PDT by JimSEA
A Fourier transform analysis of 2.5 million spectra in the Sloan Digital Sky Survey was carried out to detect periodic spectral modulations. Signals having the same period were found in only 234 stars overwhelmingly in the F2 to K1 spectral range. The signals cannot be caused by instrumental or data analysis effects because they are present in only a very small fraction of stars within a narrow spectral range and because signal to noise ratio considerations predict that the signal should mostly be detected in the brightest objects, while this is not the case. We consider several possibilities, such as rotational transitions in molecules, rapid pulsations, Fourier transform of spectral lines and signals generated by Extraterrestrial Intelligence (ETI). They cannot be generated by molecules or rapid pulsations. It is highly unlikely that they come from the Fourier transform of spectral lines because too many strong lines located at nearly periodic frequencies are needed. Finally we consider the possibility, predicted in a previous published paper, that the signals are caused by light pulses generated by Extraterrestrial Intelligence to makes us aware of their existence. We find that the detected signals have exactly the shape of an ETI signal predicted in the previous publication and are therefore in agreement with this hypothesis. The fact that they are only found in a very small fraction of stars within a narrow spectral range centered near the spectral type of the sun is also in agreement with the ETI hypothesis. However, at this stage, this hypothesis needs to be confirmed with further work. Although unlikely, there is also a possibility that the signals are due to highly peculiar chemical compositions in a small fraction of galactic halo stars.
I really have to wonder if they are using news like this to “break it to us gently” the crap they neglected to tell us over 80 years ago....
Ever hear of the Brookings Report?
https://en.wikipedia.org/wiki/Brookings_Report
It wouldn’t surprise me if they used such info for their own means in government, i mean they ARE in government...
Probably just the signals from Soros’ home planet to turn the voting machine votes into rat votes.
WE ARE COMING WE ARE COMING. DO NOT TOUCH COLOSSUS.
This is retaliation for sending the Dr. Phil Show out to the entire Universe.
I’m not saying it’s aliens, but....
Maybe so! I’d like to see it but it has to be real with a little more than this.
This is not necessarily true.
Numerous civilizations all doing similar things would produce the same observation.
This does not even require invention of the same technique by numerous groups. One species sends a signal another one sees it and says: "hey, we can do that too..."
Or a civilization achieves travel to a nearby star and sends a signal from there -- much smarter than putting up a billboard that says: "come and get us."
I read all those books, quite a while ago. I thought they were pretty good!
Yeah, back when a "good" computer had 16K of memory.
I find that smile disturbing...
Little green men flashing little green lasers at passing spacecraft
Ok, stop right here.
'rotational transitions in molecules'
'cannot be generated by molecules or rapid pulsations.'
'It is highly unlikely that they come from the Fourier transform of spectral lines'
This is gibberish.
Molecules do not 'transition'. Energy levels do. 'Generated by molecules'? There are no molecules in a star, too hot. Don't you mean emitted photons emitted during stellar fusion? 'Fourier transform of spectral lines'? Don't you mean a power spectrum?
Oh forget it.
The fact that half of the abstract talks about aliens should have been a clue even for a layman.
Did somebody actually publish this?
Bfl
Obviously He2 is technically a molecule. Still it’s stupid.
That reads like part of the plot for 2001 a Space Odyssey.
Although unlikely, there is also a possibility that the signals are due to highly peculiar chemical compositions in a small fraction of galactic halo stars.
...
It would be much more likely than ETI.
"Rotational transitions in molecules" sounds like someone got lazy or careless, or the reporter couldn't take it all in and started paraphrasing. Look up the Dilbert strip "The Life Cycle of a Business Idea" (I couldn't get the site to open in a timely fashion to post it here).
'rotational transitions in molecules'
'cannot be generated by molecules or rapid pulsations.'
'It is highly unlikely that they come from the Fourier transform of spectral lines'
This is gibberish.
Molecules do not 'transition'. Energy levels do. 'Generated by molecules'? There are no molecules in a star, too hot. Don't you mean emitted photons emitted during stellar fusion? 'Fourier transform of spectral lines'? Don't you mean a power spectrum?
Rotational spectroscopySource: https://en.wikipedia.org/wiki/Rotational_spectroscopy.Rotational spectroscopy is concerned with the measurement of the energies of transitions between quantized rotational states of molecules in the gas phase. The spectra of polar molecules can be measured in absorption or emission by microwave spectroscopy[1] or by far infrared spectroscopy. The rotational spectra of non-polar molecules cannot be observed by those methods, but can be observed and measured by Raman spectroscopy. Rotational spectroscopy is sometimes referred to as pure rotational spectroscopy to distinguish it from rotational-vibrational spectroscopy where changes in rotational energy occur together with changes in vibrational energy, and also from ro-vibronic spectroscopy (or just vibronic spectroscopy) where rotational, vibrational and electronic energy changes occur simultaneously.
For rotational spectroscopy, molecules are classified according to symmetry into spherical top, linear and symmetric top; analytical expressions can be derived for the rotational energy terms of these molecules. Analytical expressions can be derived for the fourth category, asymmetric top, for rotational levels up to J=3, but higher energy levels need to be determined using numerical methods. The rotational energies are derived theoretically by considering the molecules to be rigid rotors and then applying extra terms to account for centrifugal distortion, fine structure, hyperfine structure and Coriolis coupling. Fitting the spectra to the theoretical expressions gives numerical values of the angular moments of inertia from which very precise values of molecular bond lengths and angles can be derived in favorable cases. In the presence of an electrostatic field there is Stark splitting which allows molecular electric dipole moments to be determined.
An important application of rotational spectroscopy is in exploration of the chemical composition of the interstellar medium using radio telescopes.
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