搜索结果: 1-12 共查到“恒星与银河系 Model”相关记录12条 . 查询时间(1.555 秒)
When two black holes collide into each other to form a new bigger black hole, they violently roil spacetime around them, sending ripples called gravitational waves outward in all directions. Previous ...
Pairwise Velocities of Dark Matter Halos: a Test for the Lambda Cold Dark Matter Model using the Bullet Cluster
method : N-body simulations — galaxies : evolution — galaxies : for-mation — galaxies: clusters — cosmology : theory — cosmology : dark matter
2011/10/13
The existence of a bullet cluster (such as 1E0657-56) poses a challenge to the concordance Lambda cold dark matter model. Here we investigate the velocity distribution of dark matter halo pairs in lar...
A Model For Polarised Microwave Foreground Emission From Interstellar Dust
Model Polarised Microwave Foreground Emission Interstellar Dust
2011/10/13
The upcoming generation of cosmic microwave background (CMB) experiments face a major challenge in detecting the weak cosmic B-mode signature predicted as a product of primordial gravitational waves. ...
A Model of Habitability Within the Milky Way Galaxy
astrobiology, Galactic evolution, Galactic Habitable Zone, habitability, su- pernovae
2011/9/29
We present a model of the Galactic Habitable Zone (GHZ), described in terms of the spatial and temporal dimensions of the Galaxy that may favour the development of complex life. The Milky Way galaxy i...
Fourth-order gravity as the inflationary model revisited
Fourth-order gravity inflationary model
2010/3/19
We revisit the simplest (fourth-order or quadratically generated) modified gravity model in four space-time dimensions. It is equivalent to the certain quintessence model via a Legendre-Weyl transform...
A dynamical model for the spiral galaxy ngc 3359。
The MHD Collapsar Model for GRBs：an Inflow produces an Outflow
MHD Collapsar Model GRBs Inflow produces
2009/7/1
The MHD Collapsar Model for GRBs：an Inflow produces an Outflow。
A circumstellar interaction model for Sn 2002ic。
Evolution of the Distribution of Neutron Exposures in the Galaxy Disc：An Analytical Model
Nucleosynthesis neutron exposures abundances stars:AGB stars:low-mass stars galaxy:evolution
2009/5/12
In this work, based on the analytical model with delayed production
approximation developed by Pagel & Tautvaiˇsien˙e (1995) for the
Galaxy, the analytic solutions of the distribution of neutron e...
Report on the Dynamical Evolution of an Axially Symmetric Quasar Model
Galaxies: orbits regular and chaotic motion
2009/5/7
The role of the angular momentum in the regular or chaotic
character of motion in an axially symmetric quasar model is examined.
It is found that, for a given value of the critical angular momentum ...
AN ALTERNATIVE MASS MODEL FOR GALACTIC DARK CORONAE
AN ALTERNATIVE MASS MODEL GALACTIC DARK CORONAE
2009/3/16
A spherically symmetric mass distribution with two scale parameters
for the dark corona of a (spiral) galaxy as an alternative to the usually applied
quasi-isothermal sphere is considered. Examinati...
MINIHALO MODEL FOR THE LOW-REDSHIFT Lyα ABSORBERS REVISITED
quasars absorption lines-Galaxies halos-dark matter
2009/2/9
We reconsider the basic properties of the classical minihalo model
of Rees and Milgrom in light of the new work, both observational (on "dark galax-
ies" and masses of baryonic haloes) and theoretic...