Shifts of Spectral Lines emitted from Stars

Details Shifts of Spectral Lines emitted from Stars Shifts of Spectral Lines emitted from Stars

Jul 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982isasr.600....1m&link_type=abstract

ISAS Research Note, vol.600, p.1-8

Physics

Cosmology, Plasma Shift, Ci Cygni

Scientific paper

The origin of shift of spectral lines that are emitted from stars is generally assumed to be due to either of the following causes or combination of them: (1) Doppler effect, (2) plasma shift, (3) Einstein's general-relativistic redshift. Of these, (1) and (2) are discussed in detail. In connection with the Doppler effect, the reason of the fact that Hubble's constant can take a variety of values is explained. There are cases in which Doppler effect is negligible and plasma shift dominates. As an example, the shifts of spectral lines emitted from the symbiotic CI Cygni in quiescent state and tabulated in the literature (reporting the spectroscopic observation done during the period between July 1980 and October 1980) are ascribed to plasma shifts alone.

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