Other
Scientific paper
Nov 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010vaoa.conf..206m&link_type=abstract
"Evolution of Cosmic Objects through their Physical Activity, Proceedings of the Conference dedicated to Viktor Ambartsumian's 1
Other
Scientific paper
The very large and the "anomalous" redshifts are observed in regions where atomic hydrogen is detected by its Lyman lines. Several coherent Raman scattering by the hyperfine structure of levels 2S or 2P may combine into a parametric effect which transfers energy between light modes, shifting the frequencies without any blurring of the images and the spectra. The temperature of a mode is deduced from its luminance by Planck-Nernst law; to obey thermodynamics, the hottest modes, usually light, are cooled, redshifted, while the cold ones, usually radio, thermal radiation, are blueshifted. Another coherent effect is superradiance which appears in regions where long paths in partly ionized hydrogen are available, in particular in the transition zone between a Stromgren sphere and unexcited atomic hydrogen. It appears that the brightest ring of SNR 1987A is the image and has the spectrum of a Stromgren sphere; the broad, strongly redshifted Lyman alpha spectrum of the internal ring cannot obey Hubble's law because the distance of SNR1987A was measured accurately by photon echoes; it results from coherent scattering. The spectra of the quasars, in particular the periodicities of the redshifts are accurately explained; other effects such the "anomalous acceleration" of Pioneer 10 and 11 probes, the proximity effect, the frequency shifts of the extreme UV lines of the Sun result from coherent scattering in atomic hydrogen too.
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