搜索结果: 1-8 共查到“天文学 methodology”相关记录8条 . 查询时间(0.14 秒)
Comparing simulations and observations of the Ly alpha forest. I. Methodology
data analysis N-body simulations
2014/12/26
We describe techniques for comparing spectra extracted from cosmological simulations and observational data, using the same methodology to link Lyα properties derived from the simulations with propert...
A Bayesian approach to the semi-analytic model of galaxy formation: methodology
galaxy formation methodology
2014/12/22
We believe that a wide range of physical processes conspire to shape the observed galaxy population but we remain unsure of their detailed interactions. The semi-analytic model (SAM) of galaxy formati...
New insights into galaxy structure from galphat– I. Motivation, methodology and benchmarks for Sérsic models
new galaxy image decomposition tool galphat
2014/12/20
We introduce a new galaxy image decomposition tool, galphat (GALaxy PHotometric ATtributes), which is a front-end application of the Bayesian Inference Engine (bie), a parallel Markov chain Monte Carl...
Gaps in Protoplanetary Disks as Signatures of Planets: I. Methodology and Validation
planet disk interactions protoplanetary disks planets and satellites detection radiative
2012/2/23
We examine the observational consequences of partial gaps being opened by planets in protoplanetary disks. We model the disk using a static alpha-disk model with detailed radiative transfer, parametri...
Galaxy clustering and projected density profiles as traced by satellites in photometric surveys: Methodology and luminosity dependence
Galaxy clustering projected density profiles photometric surveys
2010/11/12
We develop a new method which measures the projected density distribution wp(rp)n of photometric galaxies surrounding a set of spectroscopically-identified galaxies, and simultaneously the projected c...
New insight on galaxy structure from GALPHAT I. Motivation, methodology, and benchmarks for Sersic models
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Instrumentation and Methods for Astrophysics (astro-ph.IM)
2010/12/27
We introduce a new galaxy image decomposition tool, GALPHAT (GALaxy PHotometric ATtributes), to provide full posterior probability distributions and reliable confidence intervals for all model paramet...
The XMM Cluster Survey: X-ray analysis methodology
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/24
The XMM Cluster Survey (XCS) is a serendipitous search for galaxy clusters using all publicly available data in the XMM- Newton Science Archive. Its main aims are to measure cosmological parameters an...
Parametric Identification of Solar Series based on an Adaptive Parallel Methodology
Sunspot time series system identification parametric modelling optimization parallelism adaptation
2009/5/12
In this work we present an adaptive parallel methodology
to optimize the identification of time series through parametric models,
applying it to the case of sunspot series. We employ high precision
...