Results 231 to 240 of about 20,094 (246)
Probing the extent and content of low ionization gas in galaxies: QSO absorption and HI emission
, 1993 D. S. Womble
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Constraining the QSO luminosity function using gravitational lensing statistics
, 2004 Onsi Fakhouri
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HamSCI Meteor Scatter QSO Party 2025-08 Scoring Files
Gary Mikitin, N. A. Frissell
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Nature, 1974
WE have completed a series of observations at Jodrell Bank on the radio structures of a complete sample of QSO candidates identified from the Parkes ±4° equatorial survey. Four sources are of particular interest in that they have properties which lead us to suggest that they may be QSOs of unusually high redshift.
Browne, Ian +5 more
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WE have completed a series of observations at Jodrell Bank on the radio structures of a complete sample of QSO candidates identified from the Parkes ±4° equatorial survey. Four sources are of particular interest in that they have properties which lead us to suggest that they may be QSOs of unusually high redshift.
Browne, Ian +5 more
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Astrophysics and Space Science, 1980
In this paper independent evidence in favour of the hypothesis proposed by Thakur and Sapre (1979) that a QSO consists of a bright central object embedded in an extended nebulosity has been presented. αU−B and αB−V, the spectral indices in (U-B) and (B-V) colours, have been calculated for a sample of 80 QSOs with redshiftz≧0.76. In Figure 1 Δα = (αB−V −
R. K. Thakur, R. K. Sood
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In this paper independent evidence in favour of the hypothesis proposed by Thakur and Sapre (1979) that a QSO consists of a bright central object embedded in an extended nebulosity has been presented. αU−B and αB−V, the spectral indices in (U-B) and (B-V) colours, have been calculated for a sample of 80 QSOs with redshiftz≧0.76. In Figure 1 Δα = (αB−V −
R. K. Thakur, R. K. Sood
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Nature, 1972
IN a recent issue of Nature1 the opinion was expressed that the lack of observed blueshifts for quasars essentially rules out local origin. While this may be a valid objection to some forms of local theory, it is not so for the very local theory in which quasars were ejected a few million years ago from the centre of our Galaxy, the nearest being only ...
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IN a recent issue of Nature1 the opinion was expressed that the lack of observed blueshifts for quasars essentially rules out local origin. While this may be a valid objection to some forms of local theory, it is not so for the very local theory in which quasars were ejected a few million years ago from the centre of our Galaxy, the nearest being only ...
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QSO absorption lines (invited review)
Astrophysics and Space Science, 1986Some techniques and selection effects in establishing uniform samples of absorption line systems are presented. Summaries of the basic properties of various absorbers are given. Finally, attention is paid to some special, interesting problems which are now widely discussed.
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1999
The use of QSOs to constrain cosmological models by means of their continuum radiation is addressed, with particular emphasis on orientation induced radiation anisotropies.
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The use of QSOs to constrain cosmological models by means of their continuum radiation is addressed, with particular emphasis on orientation induced radiation anisotropies.
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