Results 41 to 50 of about 425,135 (224)
Gravitational Lensing by Spiral Galaxies [PDF]
The Astrophysical Journal, 1998 27 pages, 7 postscript figures, submitted to ...
Keeton, C. R., Kochanek, C. S.
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The Origin and Evolution of Giant Radio Galaxies
Frontiers in Astronomy and Space Sciences, 2022 Giant radio galaxies are arguably the least understood of jetted active galactic nuclei (AGN). We propose that radio galaxies are the product of large mergers that do not involve radio galaxies or radio quasars, such as in merging spiral galaxies, while ...
David Garofalo
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Kinematically lopsided spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 6 pages, accepted for ...
Swaters, RA +3 more
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Galaxies, 2018 Spiral galaxies are spinning, internally densified objects. The Virial Theorem explains galactic rotation curves via its linkage of the rotation rate to the gravitational self-potential (Ug) and the moment of inertia of oblate spheroids.
Robert E. Criss, Anne M. Hofmeister
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, 2023 Our vision of galaxies has changed significantly since the era of large galaxy surveys like the Sloan, which gave us extensive statistics with millions of galaxies. The Hubble sequence classification described in Chapter 1 still remains very widely used but has been enriched with broad categories based on color that indicate the recent formation of ...
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Spiral Structure of Our Galaxy and of Other Galaxies [PDF]
Symposium - International Astronomical Union, 1970 Time 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 ...
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Mass of Spiral Galaxies by Means of a Maximum Disc Model
Universitas Scientiarum, 2018 Maximum disc mass models for a set of spiral galaxies from the Ursa Major Cluster are presented. We construct the models using the Hunther method and the particular solutions are chosen in such away that the circular velocities are adjusted very ...
Framsol López-Suspes +1 more
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A Catalog of Photometric Redshift and the Distribution of Broad Galaxy Morphologies
Galaxies, 2018 We created a catalog of photometric redshift of ∼3,000,000 SDSS galaxies annotated by their broad morphology. The photometric redshift was optimized by testing and comparing several pattern recognition algorithms and variable selection strategies, and ...
Nicholas Paul +2 more
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Probing the Low-Mass End of the Black Hole Mass Function via a Study of Faint Local Spiral Galaxies
, 2022 We present an analysis of the pitch angle distribution function (PADF) for nearby galaxies and its resulting black hole mass function (BHMF) via the well-known relationship between pitch angle and black hole mass.
Benjamin L. Davis +4 more
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A New Statistical Analysis of the Morphology of Spiral Galaxies
The Astronomical JournalMorphology is the starting point for understanding galaxies. Elmegreen et al. classified spiral galaxies into flocculent, multiple-arm, and grand-design galaxies based on the regularity of their spiral arm structure.
Junye Wei +6 more
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