Results 11 to 20 of about 7,724 (168)
Measuring the Spin of Spiral Galaxies [PDF]
The Astrophysical Journal, 2006 We compute the angular momentum, the spin parameter and the related distribution function for Dark Matter halos hosting a spiral galaxy. We base on scaling laws, inferred from observations, that link the properties of the galaxy to those of the host halo; we further assume that the Dark Matter has the same total specific angular momentum of the baryons.
Tonini, C. +3 more
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Spiral Galaxies as Chiral Objects? [PDF]
Astrophysics and Space Science, 2006 Spiral galaxies show axial symmetry and an intrinsic 2D-chirality. Environmental effects can influence the chirality of originally isolated stellar systems and a progressive loss of chirality can be recognised in the Hubble sequence. We point out a preferential modality for genetic galaxies as in microscopic systems like aminoacids, sugars or neutrinos.
CAPOZZIELLO, SALVATORE, LATTANZI A.
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The disc mass of spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 5 pages, 4 Figures accepted to ...
Salucci, Paolo +2 more
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Spiral galaxies in the SAURON survey [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractWe discuss some recent integral field spectroscopy using the SAURON instrument of a sample consisting of 24 early-type spirals, part of the SAURON Survey, and 18 late-type spirals. Using 2-dimensional maps of their stellar radial velocity, velocity dispersion, and absorption line strength, it is now much easier to understand the nature of ...
Peletier, R +12 more
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Kinematically lopsided spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 6 pages, accepted for ...
T. S. van Albada +3 more
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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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The profiles of bars in spiral galaxies
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We present an analysis of major-axis surface-brightness profiles of bars in a volume-limited sample of 182 barred spiral galaxies, using Spitzer 3.6 $\mu$m images. Unlike most previous studies, we use the entire bar profile, and we classify profiles into four categories.
Peter Erwin +2 more
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Radio AGN in spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 Radio AGN in the nearby Universe are more likely to be found in galaxies with early-type morphology, the detection rate in spiral or late-type galaxies (LTGs) being around an order of magnitude lower. We combine the mJy Imaging VLBA Exploration at 20 cm (mJIVE-20) survey with the Sloan Digital Sky Survey, to study the relatively rare population of AGN ...
Kaviraj, Sugata +3 more
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Symposium - International Astronomical Union, 1970 We point out some properties of barred spiral galaxies which are important for the theory of their formation and spiral structure, and describe some theoretical work on the dynamics of these systems.
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Molecular Clouds in Spiral Galaxies [PDF]
Symposium - International Astronomical Union, 1983 A large observational program investigating the 2.6 mm CO line in spiral galaxies is being conducted by myself and Nick Scoville using the 14 m telescope of the Five College Radio Astronomy Observatory (HPBW = 50″). Thus far we have observed 46 galaxies of types Sa, Sb, Sc and Irr, detected 31, and mapped 16.
Judith S. Young, Nick Z. Scoville
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