搜索结果: 1-5 共查到“天体物理学 SPIRAL GALAXIES”相关记录5条 . 查询时间(0.068 秒)
Spectroscopic observations of a sample of dwarf spiral galaxies. II- Abundance gradients
dwarf spiral galaxies Abundance gradients
2010/11/10
The oxygen gradient of four dS galaxies has been determined using abundances for several
Hii regions determined with four different methods. The gradient slopes of the three non-barred
galaxies in t...
Asymptotic Orbits in Barred Spiral Galaxies
Instrumentation and Methods for Astrophysics (astro-ph.IM)
2010/12/28
We study the formation of the spiral structure of barred spiral galaxies, using an $N$-body model. The evolution of this $N$-body model in the adiabatic approximation maintains a strong spiral pattern...
The Larson-Tinsley Effect in the UV: Interacting vs. `Normal' Spiral Galaxies
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/24
We compare the UV-optical colors of a well-defined set of optically-selected pre-merger interacting galaxy pairs with those of normal spirals. The shorter wavelength colors show a larger dispersion fo...
Arm & Interarm Star Formation in Spiral Galaxies
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/24
We investigate the relationship between spiral arms and star formation in the grand-design spirals NGC 5194 and NGC 628 and in the flocculent spiral NGC 6946.
THE CONTRIBUTION OF THE DARK MATTER TO THE ROTATION OF SPIRAL GALAXIES AND ITS MASS DISTRIBUTION
DARK MATTER SPIRAL GALAXIES MASS DISTRIBUTION
2009/3/19
The rotation of a test spiral galaxy with two contributors - the disc
and the corona - is considered. The disc is exponential, whereas the corona is the
dark subsystem. For the latter several varian...