Nebulosities around QSOs

Details Nebulosities around QSOs Nebulosities around QSOs

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ap%26ss..73..241t&link_type=abstract

Astrophysics and Space Science, vol. 73, no. 1, Nov. 1980, p. 241-249.

Astronomy and Astrophysics

Astrophysics

4

Galactic Evolution, Nebulae, Quasars, Stellar Radiation, Stellar Spectra, Ubv Spectra, Bl Lacertae Objects, Galactic Nuclei, Red Shift

Scientific paper

Thakur and Sapre (1979) suggested that a QSO consists of a bright central object embedded in an extended nebulosity. This paper presents independent evidence in favor of this hypothesis. Alpha(U-B) and alpha(B-V), the spectral indices in (U-B) and (B-V) colors, were plotted for a sample of 80 QSOs with a redshift of z not greater than 0.76. An empirical criterion for the detectability of nebulosities around QSOs is suggested.

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