Results 101 to 110 of about 421,913 (232)
The Astrophysical JournalThe Whirlpool Galaxy is a well-studied grand design galaxy with two major spiral arms, and a large satellite NGC 5195. The arms both show long uniform sections with perturbations (“kinks” or sharp turns) in specific regions.
Joan Font +4 more
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The Impacts of Bars, Spirals, and Bulge Size on Gas-phase Metallicity Gradients in MaNGA Galaxies
The Astrophysical JournalAs galaxies evolve over time, the orbits of their constituent stars are expected to change in size and shape, moving stars away from their birth radius. Radial gas flows are also expected. Spiral arms and bars in galaxies are predicted to help drive this
M. E. Wisz +4 more
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Study photometric properties of spiral galaxy NGC 4448 using CCD camera with multiband filters
Iraqi Journal of Physics, 2018 The goal of our study is to perform detailed multiband surface photometry of the spiral galaxy NGC 4448 and its brightest star-forming regions. The structure and composition of the stellar population in the surface brightness galaxy NGC 4448 was studied
Sinan H. Ali
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What determines the sizes of bars in spiral galaxies? [PDF]
, 2019 Peter Erwin
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Galaxy Classification Using EWGC
UniverseThe Enhanced Wide-field Galaxy Classification Network (EWGC) is a novel architecture designed to classify spiral and elliptical galaxies using Wide-field Infrared Survey Explorer (WISE) images.
Yunyan Nie +6 more
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A Simple Model for Explaining Galaxy Rotation Curves
Galaxies, 2018 A new simple expression for the circular velocity of spiral galaxies is proposed and tested against HI Nearby Galaxy Survey (THINGS) data set. Its accuracy is compared with the one coming from MOND.
Aneta Wojnar +2 more
doaj +1 more source
HIGH-VELOCITY CLOUDS IN THE NEARBY SPIRAL GALAXY M 83 [PDF]
, 2009 Eric D. Miller +2 more
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Identification of Intermediate-mass Black Hole Candidates among a Sample of Sd Galaxies
The Astrophysical JournalWe analyzed images of every northern hemisphere Sd galaxy listed in the Third Reference Catalogue of Bright Galaxies with a relatively face-on inclination ( θ ≤ 30°). Specifically, we measured the spiral arms’ winding angle, ϕ , in 85 galaxies.
Benjamin L. Davis +6 more
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HI in the Barred Spiral Galaxies NGC 1365 and NGC 1097. [PDF]
, 1983 J. M. van der Hulst +3 more
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Grand Design versus Multiarmed Spiral Galaxies: Dependence on Galaxy Structure
The Astronomical JournalWe developed an algorithm to use Galaxy Zoo 3D spiral arm masks produced by citizen scientist volunteers to semiautomatically classify spiral galaxies as either multiarmed or grand design spirals. Our final sample consists of 299 multiarmed and 245 grand
Beverly J. Smith +3 more
doaj +1 more source