Results 31 to 40 of about 421,349 (234)
Spiral structure in nearby galaxies – II. Comparative analysis and conclusions [PDF]
, 2014 This paper presents a detailed analysis of two-armed spiral structure in a sample of galax- ies from the Spitzer Infrared Nearby Galaxies Survey (SINGS), with particular focus on the relationships between the properties of the spiral pattern in the ...
S. Kendall, Cathie Clarke, R. Kennicutt
semanticscholar +1 more source
SPIN ALIGNMENTS OF SPIRAL GALAXIES WITHIN THE LARGE-SCALE STRUCTURE FROM SDSS DR7 [PDF]
, 2014 Using a sample of spiral galaxies selected from the Sloan Digital Sky Survey Data Release 7 and Galaxy Zoo 2, we investigate the alignment of spin axes of spiral galaxies with their surrounding large-scale structure, which is characterized by the large ...
Youcai Zhang +8 more
semanticscholar +1 more source
, 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 ...
openaire +2 more sources
THE BLACK HOLE MASS FUNCTION DERIVED FROM LOCAL SPIRAL GALAXIES [PDF]
, 2014 We present our determination of the nuclear supermassive black hole (SMBH) mass function for spiral galaxies in the local universe, established from a volume-limited sample consisting of a statistically complete collection of the brightest spiral ...
Benjamin Lee Davis +8 more
semanticscholar +1 more source
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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ULTRALIGHT SCALARS AND SPIRAL GALAXIES [PDF]
Modern Physics Letters A, 2001 We study some possible astrophysical implications of a very weakly coupled ultralight dilaton-type scalar field. Such a field may develop an (approximately stable) network of domain walls. The domain wall thickness is assumed to be comparable with the thickness of the luminous part of the spiral galaxies. The walls provide trapping for galactic matter.
Dvali, Gia +2 more
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Rectangular Spiral Galaxies are still hard
Computational Geometry, 2023 Spiral Galaxies is a pencil-and-paper puzzle played on a grid of unit squares: given a set of points called centers, the goal is to partition the grid into polyominoes such that each polyomino contains exactly one center and is 180° rotationally symmetric about its center.
Erik D. Demaine +2 more
openaire +5 more sources
The DiskMass Survey VII. The distribution of luminous and dark matter in spiral galaxies [PDF]
, 2013 We present dynamically-determined rotation-curve mass decompositions of 30 spiral galaxies, which were carried out to test the maximum-disk hypothesis and to quantify properties of their dark-matter halos.
T. Martinsson +5 more
semanticscholar +1 more source
FUNDAMENTAL MASS–SPIN–MORPHOLOGY RELATION OF SPIRAL GALAXIES [PDF]
, 2013 This work presents high-precision measurements of the specific baryon angular momentum jb contained in stars, atomic gas, and molecular gas, out to ≳ 10 scale radii, in 16 nearby spiral galaxies of the THINGS sample.
D. Obreschkow, K. Glazebrook
semanticscholar +1 more source
Towards a more realistic population of bright spiral galaxies in cosmological simulations [PDF]
, 2013 We present an update to the multiphase SPH galaxy formation code by Scannapieco et al. We include a more elaborate treatment of the production of metals, cooling rates based on individual element abundances, and a scheme for the turbulent diffusion of ...
M. Aumer +3 more
semanticscholar +1 more source