搜索结果: 31-42 共查到“天文学 LARGE-SCALE”相关记录42条 . 查询时间(0.172 秒)
Radio-continuum detections of Galactic Planetary Nebulae I. MASH PNe detected in large-scale radio surveys
Radio-continuum Galactic Planetary Nebulae I
2011/1/10
We present an updated and newly compiled radio-continuum data-base for MASH PNe detected in the extant large scale "blind" radio-continuum surveys (NVSS, SUMSS/MGPS-2 and PMN) and, for a small number ...
Large scale structure simulations of inhomogeneous LTB void models
Cosmology and Extragalactic Astrophysics (astro-ph.CO) General Relativity and Quantum Cosmology (gr-qc)
2011/1/6
We perform numerical simulations of large scale structure evolution in an inhomogeneous Lemaitre-Tolman-Bondi (LTB) model of the Universe. We follow the gravitational collapse of a large underdense re...
Topology of large scale structure as test of modified gravity
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2011/1/5
The genus of the iso-density contours is a robust measure of the topology of large-scale structure, and relatively insensitive to galaxies biasing and redshift-space distortions. We show that the grow...
A Slight Excess of Large Scale Power from Moments of the Peculiar Velocity Field
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/29
The peculiar motions of galaxies can be used to infer the distribution of matter in the Universe. It has recently been shown that measurements of the peculiar velocity field indicates an anomalously h...
Understanding the faint red galaxy population using large-scale clustering measurements from SDSS DR7
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/27
We use data from the SDSS to investigate the evolution of the large-scale galaxy bias as a function of luminosity for red galaxies. We carefully consider correlation functions of galaxies selected fro...
Large Scale Traces of Solar System Cold Dust on CMB Anisotropies
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/24
We explore the microwave anisotropies at large angular scales produced by the emission from cold and large dust grains, expected to exist in the outer parts of the Solar System, using a simple toy mod...
We discuss the large scale polarization of the cosmic microwave background induced by the anisotropy of the spatial geometry of our universe. Assuming an eccentricity at decoupling of about $0.64 10^{...
Large scale absorbers in the environment of high-z radio-galaxies。
Large-Scale Photoevaporation Flows in H II Regions
Large-Scale Photoevaporation Flows H II Regions
2009/6/15
Large-Scale Photoevaporation Flows in H II Regions。
Large-scale shear and alignment of cosmic structures。
Large Scale Magnetic Fields：Density Power Spectrum in Redshift Space
Cosmology magnetic fields MHD
2009/5/19
We compute the density redshift-space power spectrum in
the presence of tangled magnetic fields and compare it with existing observations.
Our analysis shows that if these magnetic fields originated...
LARGE-SCALE DYNAMO OF ACCRETION DISKS AROUND SUPERMASSIVE NONROTATING BLACK HOLES
Galaxies active-Accretion, accretion disks-MHD-Magnetic fields
2009/2/18
LARGE-SCALE DYNAMO OF ACCRETION DISKS AROUND SUPERMASSIVE NONROTATING BLACK HOLES。