Results 381 to 390 of about 335,375 (390)
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Nature, 1973
Comments on a recently discovered second QSO with a redshift greater than 3. From a study of a composite spectrum of OQ172 formed by adding data from spectra obtained on different nights two strong emission features near 5540 and 7015 A are noted and are identified with Lyman alpha 1216 A and CIV 1549 A.
E. M. Burbidge +3 more
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Comments on a recently discovered second QSO with a redshift greater than 3. From a study of a composite spectrum of OQ172 formed by adding data from spectra obtained on different nights two strong emission features near 5540 and 7015 A are noted and are identified with Lyman alpha 1216 A and CIV 1549 A.
E. M. Burbidge +3 more
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Chemical abundances in high-redshift galaxies: a powerful new emission line diagnostic
, 2016This Letter presents a new, remarkably simple diagnostic specifically designed to derive chemical abundances for high redshift galaxies. It uses only the Hα$\mathrm{H}\alpha$, [N ii] and [S ii] emission lines, which can usually be observed in a single ...
M. Dopita +3 more
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On the Nature of the Redshifts of the Twin Quasars with Discrepant Redshifts
Publications of the Astronomical Society of Australia, 1991AbstractWe examine the nature of the redshifts of twin quasars with discrepant redshifts (θ < 100 arcsec, Δz ≥ 0.5) by considering their Hubble diagram. If such twins are physically associated one expects a large scatter in their Hubble diagram. However, we find a statistically significant linear correlation between log (cz) and Vc magnitudes of ...
A. K. Sapre, V. D. Mishra
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Nature, 1973
THE purpose of this letter is to draw attention to the very high redshift, z = 3.40, of the QSO OH471.
Peter A. Strittmatter, R. F. Carswell
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THE purpose of this letter is to draw attention to the very high redshift, z = 3.40, of the QSO OH471.
Peter A. Strittmatter, R. F. Carswell
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Nature, 1971
THERE have been several investigations of possible parts in the redshifts of galaxies which are apparently not due to their radial systemic velocities1–7. In most of them the correlation between redshift and magnitude has been studied. To obtain more information about the nature of the possible redshift effect, other parameters should be studied.
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THERE have been several investigations of possible parts in the redshifts of galaxies which are apparently not due to their radial systemic velocities1–7. In most of them the correlation between redshift and magnitude has been studied. To obtain more information about the nature of the possible redshift effect, other parameters should be studied.
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Annals of the New York Academy of Sciences, 1973
Questions regarding the origin of quasi-stellar objects with their large redshifts are discussed. Evidence concerning the cosmological origin of the redshifts is examined. There appears to be some fairly strong evidence which suggests the presence of noncosmological redshifts.
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Questions regarding the origin of quasi-stellar objects with their large redshifts are discussed. Evidence concerning the cosmological origin of the redshifts is examined. There appears to be some fairly strong evidence which suggests the presence of noncosmological redshifts.
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Redshift Quantization — A Review
Astrophysics and Space Science, 1995Redshift quantization has three main facets: 1) the internal organization of galaxies, 2) differential effects between galaxies in physical systems, 3) global effects linking all galaxies and cosmology. The subject originated as an outgrowth of redshift correlation studies including studies of internal kinematics of galaxies.
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1993
The cornerstone of the big bang theory is the Hubble diagram. It tells us that recessional velocities increase linearly with distance. In other words, the farther away a galaxy is, the faster it is receding. The points of the graph, however, do not lie in a perfectly straight line; there is some scatter.
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The cornerstone of the big bang theory is the Hubble diagram. It tells us that recessional velocities increase linearly with distance. In other words, the farther away a galaxy is, the faster it is receding. The points of the graph, however, do not lie in a perfectly straight line; there is some scatter.
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