Sometimes hydregen, sodium and nebula lines appeared from 1979 to 1982. From October, 1982 to December, 1983 (final observation) Hα emission line became strong.
We present H and K s polarimetric images in a ~5′ field of star forming region NGC7538. The polarimetric images reveal the complex structure of infrared nebulosities and clusters of young stars, associated with the bright infrared sources IRS 1 11. The polarization pattern in the IRS 1 3 nebula shows a dominant illumination from deeply embedded source IRS 1. The morphology of the nebula can be modeled by a low extincted bubble enclosed by redder and highly polarized shell.
A model with a rather small flux of ? = 10-8MSat/ yr and a tenfold depletion of Saturn's disk in gas due to gas scattering from the solar nebula is at one side of this range.
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Observations of the nebula associated with the WO star in the galaxy IC 1613 are presented.
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The monochromatic Hα image clearly reveals a giant bipolar shell structure outside the bright nebula S3.
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Photometric variability and spectral features of the protoplanetary nebula LSII + 34° 26 = V1853 Cyg
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Line identification and photometric observations of the future planetary nebula IRAS 18 062+2410=V886 Her in 1997-1999
A synchronised accumulation technique is used to achieve a resolution of up to 10-13 cm for the oscillating amplitude of a laser interferometer. Such a technique is applied to observe the 60.4 Hz gravitational radiation which is possibly emitted from the pulsar NP 0532 of the Crab Nebula. Present experiments show that no such signal is received.
Forty theories on the origin of the solar system are critically reviewed, especially with regard to the two fundamental problems : source of planetary material and mode of planetary formation. The following conclusions are drawn : planetary material was neither captured by nor expelled from the sun; the whole solar system was formed from a nebula, as postulated by Kant and Laplace, but their nebular theories need revision and development. A nebular disk was formed around the sun, in it pla...
In this paper the propagation of low frequency electromagnetic wave with large amplitude in a magnetized plasma is discussed. It is shown that penetration of magnetic-dipole radiation in the medium of the crab nebula seems to be possible.