搜索结果: 1-14 共查到“天文学 analytical”相关记录14条 . 查询时间(0.077 秒)
On the effects of clouds and hazes in the atmospheres of hot Jupiters: semi-analytical temperature-pressure profiles
planets and satellites: atmospheres – radiative transfer
2011/9/29
Motivated by the work of Guillot (2010), we present a semi-analytical formalism for calculating the temperature-pressure profiles in hot Jovian atmospheres which includes the effects of clouds/hazes a...
Semi-analytical model of cosmic ray electron transport
Semi-analytical model cosmic ray electron transport
2011/9/28
We present a numerical extension to the analytical propagation model introduced in Hein and Spanier (2008) to describe the leptonic population in the galactic disc. The model is used to derive a possi...
Spectral Index as a Function of Mass Accretion Rate in Black Hole Sources. Monte-Carlo Simulations and an Analytical Description
black hole physics accretion disks radiation mechanisms
2010/11/16
We present herein a theoretical study of correlations between spectral indexes of X-ray emergent spectra and mass accretion rate (m˙ ) in black hole (BH) sources,which provide a definitive signature f...
Magnetars as Highly Magnetized Quark Stars: an analytical treatment
High Energy Astrophysical Phenomena (astro-ph.HE)
2011/1/6
We present an analytical model of a magnetar as a high density magnetized quark bag. The effect of strong magnetic fields (B > 5 x 10^{16} G) in the equation of state is considered. An analytic expres...
Comparison of the VIMOS-VLT Deep Survey with the Munich semi-analytical model - I. Magnitude counts, redshift distribution, colour bimodality, and galaxy clustering
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/23
This paper presents a detailed comparison between high-redshift observations from the VIMOS-VLT Deep Survey (VVDS) and predictions from the Munich semi-analytical model of galaxy formation.
Numerical versus analytical accuracy of the formulas for light propagation
Numerical versus analytical light propagation
2010/3/19
Numerical integration of the differential equations of light propagation in the Schwarzschild metric shows that in some situations relevant for practical observations the well-known post-Newtonian sol...
Analytical Treatment of the Two-Body Problem with Slowly Varying Mass
Mass loss—binary systems—two-body problem—perturbations.
2010/9/15
The present work is concerned with the two-body problem with varying mass in case of isotropic mass loss from both components of the binary systems. The law of mass variation used gives rise to a pert...
SEMI-ANALYTICAL FORMULAS FOR THE FUNDAMENTAL PARAMETERS OF GALACTIC EARLY B SUPERGIANTS
Stars: fundamental parameters Hertzsprung-Russell (HR) and C-M Stars: general
2010/10/29
The publication of new tables of calibration of some fundamental parameters of Galactic B0-B5 supergiants in the two classes Ia and Ib allows to particularize the eight parameters conjecture that mode...
The delayed contribution of low and intermediate mass stars to chemical galactic enrichment：an analytical approach
stars analytical approach chemical galactic enrichment
2009/7/10
The delayed contribution of low and intermediate mass stars to chemical galactic enrichment：an analytical approach。
Structural Properties of Spherical Galaxies: a Semi-Analytical Approach
Spherical Galaxies Semi-Analytical Approach
2009/6/18
Structural Properties of Spherical Galaxies：a Semi-Analytical Approach。
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...
A NUMERICAL FIT OF ANALYTICAL TO SIMULATED DENSITY PROFILES IN DARK MATTER HALOES
cosmology theory-dark matter-galaxies clusters galaxies haloes
2009/2/25
A NUMERICAL FIT OF ANALYTICAL TO SIMULATED DENSITY PROFILES IN DARK MATTER HALOES.
SEMI-ANALYTICAL FORMULAS FOR THE HERTZSPRUNG-RUSSELL DIAGRAM
Stars fundamental parameters-Hertzsprung-Russell (HR) and C-M-Stars general
2009/2/5
The absolute visual magnitude as function of the observed color
(B-V), also named Hertzsprung-Russell diagram, can be described through ¯ve
equations; that when calibrated stars are available m...
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
2010/9/16
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 expos...