Results 1 to 10 of about 12,724,888 (389)
The Galaxy Structure-Redshift Relationship [PDF]
, 2004There exists a gradual, but persistent, evolutionary effect in the galaxy population such that galaxy structure and morphology change with redshift. This galaxy structure-redshift relationship is such that an increasingly large fraction of all bright and
A Graham+49 more
core +5 more sources
Symposium - International Astronomical Union, 1964
The title which the organizers of the Symposium have suggested for this introductory report covers an enormous domain. Even if one limits oneself, as I intend to do, to the large-scale structure, it is impossible to summarize this adequately in one communication.
J. H. Oort
openalex +3 more sources
The title which the organizers of the Symposium have suggested for this introductory report covers an enormous domain. Even if one limits oneself, as I intend to do, to the large-scale structure, it is impossible to summarize this adequately in one communication.
J. H. Oort
openalex +3 more sources
Spiral structure of our Galaxy and of other galaxies [PDF]
Symposium - International Astronomical Union, 1970Time and again Dr. B. Bok publishes his reviews on the state of optical searches of the spiral arms in our Galaxy. A great optimist at the beginning, concerning the agreement of different results, he became later more critical in his conclusions. But in his paper of 1967 he claims anew, as well established, that we can trace the spiral arms up to a ...
B.A. Vorontsov-Velyaminov
openalex +3 more sources
What shapes a galaxy? - Unraveling the role of mass, environment and star formation in forming galactic structure [PDF]
Monthly notices of the Royal Astronomical Society, 2019We investigate the dependence of galaxy structure on a variety of galactic and environmental parameters for ~500,000 galaxies at ...
Bluck, Asa F. L.+11 more
core +4 more sources
The Evolution of Galaxy Structure over Cosmic Time [PDF]
, 2014I present a comprehensive review of the evolution of galaxy structure in the universe from the first galaxies we can currently observe at z~6 down to galaxies we see in the local universe. I further address how these changes reveal galaxy formation processes that galaxy structural analyses can provide.
C. Conselice
arxiv +3 more sources
Something about the structure of the Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 1999We analyse a sample of 507 evolved stars in the inner galactic Plane. We derive average ages for subsets of this sample and use those sets as beacons for the evolution of the Galaxy.
M. N. Sevenster, Sridhar
core +6 more sources
Spiral Structure and Galaxy Environment [PDF]
The Astronomical Journal, 2002Among 330 normal spirals of types Sa-Sc the fraction of objects exhibiting ``ring'', ``intermediate'' and ``spiral'' arm varieties does not correlated with environment.
Buta R.+3 more
core +4 more sources
Spiral structure in external galaxies [PDF]
Symposium - International Astronomical Union, 1970The need for observing at least four different categories of optical objects for a satisfactory definition of optical spiral structure is emphasized. A sequence of optical form-types for the description of spiral structure is outlined. A pronounced difference in the nature of the spiral structure of the outer and inner parts of Messier 33 is ...
W. W. Morgan
openalex +3 more sources
Structure and Evolution of Dwarf Galaxies [PDF]
, 2014Different structural parameter correlations show how classical bulge components and elliptical galaxies are different from spiral and S0 galaxy disks, irregular (Im) galaxies, and spheroidal (Sph) galaxies. In contrast, the latter, apparently diverse galaxies or galaxy components have almost identical parameter correlations.
arxiv +5 more sources
The spiral structure of galaxies [PDF]
Nature, 1979Bernard J. T. Jones, Scott Tremaine
openalex +3 more sources