In 1990, after the discovery of the Wave of Kotov in the Sun and in a certain number of stars of the Milky way, is published, in the "Comptes Rendus de l'Académie des Sciences" in Paris, a document showing the appearance, in about twenty nucleuses of active Galaxies and Quasars, of a wave of 160,01 minutes, therefore similar, except the amplitude, to the one that already had been detected in the Sun.

1. NGC 1275, NGC 3516, NGC 4051, NGC 4151, NGC 5506, NGC 5548, NGC 6814, NGC 7314, NGC 7469

2. 3C 66A, 3C 273, 3C 371, 3C 454.3, 4C 29.45

3. III Zw 2, Mrk 335, Mrk 421, Mrk 501, OJ 287, MCG-6-30-15

4. EXO 1128+691, PKS 2155-304.

As well as for the stars, no Doppler effect (Redshift) is measurable and the phase is constant on more of thirty years of data collected so much in USSR that to USA.
One notes that:

1. The effect is measurable on all the Earth (south pole, USA, Crimea,)

2. The phase is different from a quasar to another. The cause of the wave of Kotov is therefore external to the solar system.

3. The galaxies and the Quasars are dispersed in the full celestial sphere. Would the cause be extra galactic?

If the cause is extra galactic one should observe this phenomenon at least for all stars, all galaxies and all quasars of the local cluster of galaxies. However it doesn't seem to be the case. One doesn't observe it in any case, and certain observations relate to objects without relation with the local cluster.
An essential requirement exists therefore, in common to all these objects, stars or nucleuses of galaxies so that this phenomenon appears.

1. These galactic nucleuses would behave therefore as Giant Detectors of Weber! In other words as gravitational waves detectors, or even as tuned resonators on the incident wave.

2. In fact all these objects would be intercoupled the ones to each others. There would not be an unique source therefore.

3. All stars, all planets and all galaxy would be submitted to the influence of this distribute gravitational wave . All could be used in view of  its detection.

4. For all galaxies, the wavelength of the LGG is the same, only the relative phases differ. These gaps seems linked to the respective distances of these galaxies ones to each others. These particularities eliminate the possibility of detection of an unique global source of the LGG.

Conclusion :
A mutual gravitational coupling would exist thus between all galactic nucleuses. This coupling would reverberate to the set of the stars of every galaxy. This quality would to be  generalized to all galaxies.

1. The theory asserts that the period of the gravitational waves would be situated rather around 1ms ( 1000 Hz), and certainly not around 160,01 minutes !

2. How could gravitational waves behave and be detected on more or less diluted masses ?

It is to forget, a little bit fast,

1. That the theory of gravitational waves is far from being finished.

2. That nobody has ever detected directly the slightest gravitational wave.

3. That these last ones, according to the theory, can be low frequencies modulated according to very particular modes which look like a little those whom the radioelectricians call with acronyms "AM" and "BLU".

4. And in that case, it is this modulation which would be detected by the sun. The physics of this detection remains to discover.

The gravitational waves would be especially active in the regions near of the black holes, (density of matter more that sufficient) And therefore it would be the volume variations of these regions, that would be at the source of the phenomenon.
A trivial calculation shows that the galactic nucleuses whose diameter would be the order of
 N/4 (with = wavelength of Kotov) would be susceptible to enter in resonance or the less to show the beginnings.
The chart, below, shows the possible sizes of resonance for a galactic nucleus. One will notice, while passing, the astonishing "coincidences" that appear with some sizes in the solar system, coincidence which demonstrates, if it needs be, that the wave of Kotov in the sun has nothing of an artefact .

	is the wave length corresponding to the period of Kotov.

Resonance	Dimensions in UA		In relation to Solar system
	With period = 160 mn	Observed
	19.2012	19.2181	Sun ↔ Uranus
/2	9.6006	9.5547	Sun ↔ Saturne
/4	4.8003	5.2026	Sun ↔ Jupiter

We note that in every case the divergences are lower than 10 %

It explains, why the LGG doesn't have an obligatory effect for objects very similar (failure of resonance for some of them).
Let's note that in the case of a galactic nucleus, a resonance could not evidently entail any explosion because their likely constitution of gas and/or plasma, certainly very dense, but deformable material, in the environments near hyper massive black holes.

1. Ch. Bizouard - "Discussion sur les oscillations cosmiques, les nombres sans dimension et les périodicités en microphysique et cosmologie" - 02/27/2004 - Collège de France. (With a very complete bibliography)

2. Supermassive binary black hole system in the quasar 3C 345

We thank Misters Christian Bizouard (Paris Observatory) and Francis Sanchez who supplied us all the documentation used for the achievement of this page.
The reader will notice, that in this stage, and contrary to the quoted persons, we pull, from mister Valery Kotov's observations, no conclusion of cosmological order. The only hypotheses which we formulate here stay, in some details near, within the framework of the classic theories.