There's a lot of misinformation in that paper...example..."No rotating object in the universe that is devoid of a magnetic fields is known" Wrong. What about Venus. It has no magnetic field, yet it rotates (very slowly). Mars is another. It doesn't have a planetary dynamo. It only has areas of weak magnetic fields which are mostly confined to cratered highlands and some basins in the southern hemisphere. They're relict fields from the time when the planet did have a dynamo (before 3.9Ga). And here's something to throw a spanner into the works...Ganymede is tidally locked with Jupiter. Yet it produces a magnetic field. On the basis of Perrat's contentions, go figure
The Sun's magnetic field is 1G (gauss), most stars over F4 have bugger all magnetic fields, if any at all. Only sunspots and the M class stars have fields anywhere near 3-4T in strength (and not all M class stars have fields that strong, only the flare stars).
His other field strengths, especially the IGMF are off by several orders of magnitude, as are his galactic fields.
Space is not a vacuum (he wants to go and learn the definition of the term).
And that is just the start!!!.