搜索结果: 1-14 共查到“天文学 analytical”相关记录14条 . 查询时间(0.203 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...