CLUMPY: Jeans analysis, Y-ray and v fluxes from dark matter (sub-)structures-猫眼课题宝

DOI：

10.1016/j.cpc.2015.11.012

发表时间：

2015-06

期刊：

Comput. Phys. Commun.

影响因子：

通讯作者：

中科院分区：

其他

文献类型：

作者：

V. Bonnivard;M. Hütten;E. Nezri;A. Charbonnier;C. Combet;D. Maurin

我们更新了用于计算任何银河系或河外暗物质晕包括子结构的天体物理J因子(来自暗物质湮灭/衰变)的块代码：晕到晕的浓度散射现在可以实现，助推因子可以包括几个级别的子结构，并且三轴是暗物质晕的一个新的选择。这个新版本利用cfitsio和HEALPix库来建议使用HEALPix像素化方案的FITS输出地图。来自一般湮没/衰变光谱的γ射线和ν信号的天图现在是ClumPy的直接输出。利用HEALPix程序，现在可以使用用户定义的仪器高斯光束进行平滑和计算地图的角功率谱。除了这些改进之外，主要的新奇之处是实现了Jeans分析模块，从松弛的球状系统(例如矮小球状星系)的运动学数据中获得暗物质密度分布。该程序还与为马尔可夫链蒙特卡罗分析设计的强大工具包接口，从中可以获得速度色散、暗物质轮廓和J因子的概率密度函数和可信区间。节目摘要节目标题：CLUMPY目录标识：AEKS_v2_0节目摘要网址：http://cpc.CS.QUB。交流电。UK/摘要/AEKS_v2_0。Html程序可从：北爱尔兰贝尔法斯特女王大学CPC程序图书馆获得许可条款：标准CPC许可证，http://cpc.CS.QUB。交流电。英国/许可证/许可证。HTML号分布式程序中的行数，包括测试数据等：494335第分布式程序的字节数，包括测试数据等：24425968分布格式：TAR。GZ编程语言：C/C++。电脑：PC和Mac。操作系统：Unix(Linux)，MacOS X.内存：500MB到1 GB，取决于请求的天图目录的大小旧版本的标识符：AEKS_v1_0旧版本的日志参考：COPUT。太棒了。通讯。183(2012)656分类：1.1、1.7、1.9。外部例程：CERN根(http://root.欧洲核子研究组织。CH)、Gsl(http://www.GNU。Org/SOFTWARE/gsl)，cfitsio(http://heasarc.GSFC。美国宇航局。Gov/fitsio/fitsio。Html)、HEALPix C++和F90(http://healpix.SourceForge。NET/INDEX。Php)，非常棒(http://lpsc.IN2P3。FR/GREAT)(仅用于MCMC分析)和DO2(http://www.多氧根。Org)(可选)新版本是否取代了以前的版本？：是的问题的性质：根据运动学数据、γ射线和来自暗物质湮灭/衰变的ν信号计算暗物质轮廓。求解方法：求解几种常见分布(暗物质分布、光分布、速度各向异性)的积分-微分Jeans方程(对速度进行了优化)。对具有子结构(空间、质量、浓度分布)的一般暗物质晕沿视线的DM密度(平方)进行积分。绘制暗物质结构的γ射线和ν发射的完整天空图，由使用HEALPix工具的PSF仪器进行平滑处理。新版本的原因：代码中添加了更多的功能和选项。修订摘要：包括伽马射线和中微子通量的PPPC4DMID谱；天空图和角功率谱的HEALPix像素化；启用DM Profile三轴性；更多质量集中选项；多级子结构增强；Jeans分析模块，用于计算恒星运动学数据的暗物质轮廓；改进的根和拟合输出。限制：仍需包括星系外漫射对信号的贡献(和γ射线衰减)以及来自暗物质的二次辐射，以提供…

We present an update of the CLUMPY code for the calculation of the astrophysical J-factors (from dark matter annihilation/decay) for any Galactic or extragalactic dark matter halo including substructures: halo-to-halo concentration scatter may now be enabled, boost factors can include several levels of substructures, and triaxiality is a new option for dark matter haloes. This new version takes advantage of the cfitsio and HEALPix libraries to propose fits output maps using the HEALPix pixelisation scheme. Skymaps for γ-ray and ν signals from generic annihilation/decay spectra are now direct outputs of CLUMPY. Making use of HEALPix routines, smoothing by a user-defined instrumental Gaussian beam and computing the angular power spectrum of the maps are now possible. In addition to these improvements, the main novelty is the implementation of a Jeans analysis module, to obtain dark matter density profiles from kinematic data in relaxed spherical systems (eg, dwarf spheroidal galaxies). The code is also interfaced with the GreAT toolkit designed for Markov Chain Monte Carlo analyses, from which probability density functions and credible intervals can be obtained for velocity dispersions, dark matter profiles, and J-factors. Program summary Program title: CLUMPY Catalogue identifier: AEKS_v2_0 Program summary URL: http://cpc. cs. qub. ac. uk/summaries/AEKS_v2_0. html Program obtainable from: CPC Program Library, Queen’s University, Belfast, N. Ireland Licensing provisions: Standard CPC licence, http://cpc. cs. qub. ac. uk/licence/licence. html No. of lines in distributed program, including test data, etc.: 494335 No. of bytes in distributed program, including test data, etc.: 24425968 Distribution format: tar. gz Programming language: C/C++. Computer: PC and Mac. Operating system: UNIX (Linux), MacOS X. RAM: Between 500MB and 1GB depending on the size of the requested skymap Catalogue identifier of previous version: AEKS_v1_0 Journal reference of previous version: Comput. Phys. Comm. 183 (2012) 656 Classification: 1.1, 1.7, 1.9. External routines: CERN ROOT (http://root. cern. ch), GSL (http://www. gnu. org/software/gsl), cfitsio (http://heasarc. gsfc. nasa. gov/fitsio/fitsio. html), HEALPix C++ and F90 (http://healpix. sourceforge. net/index. php), GreAT (http://lpsc. in2p3. fr/great)(for MCMC analyses only), and Doxygen (http://www. doxygen. org)(optional) Does the new version supersede the previous version?: Yes Nature of problem: Calculation of dark matter profile from kinematic data, γ-ray and ν signals from dark matter annihilation/decay. Solution method: Solve the integro-differential Jeans equation (optimised for speed) for several generic distributions (dark matter profile, light profile, velocity anisotropy). Integration of the DM density (squared) along a line-of-sight for generic dark matter haloes with substructures (spatial, mass, concentration distributions). Draw full skymaps of γ-ray and ν emission from dark matter structures, smoothed by an instrument PSF using HEALPix tools. Reasons for new version: Many more functionalities and options have been added to the code. Summary of revisions: Inclusion of the PPPC4DMID spectra for gamma-ray and neutrino fluxes; HEALPix pixelisation for skymaps and angular power spectrum; DM profile triaxiality enabled; More mass–concentration options; Multi-level substructure boost; Jeans analysis module to compute dark matter profiles for stellar kinematic data; Improved ROOT and FITS output. Restrictions: The diffuse extragalactic contribution to the signal (and γ-ray attenuation) as well as secondary radiation from dark matter remains to be included in order to provide a …

CLUMPY: Jeans analysis, Y-ray and v fluxes from dark matter (sub-)structures

文献摘要

被引文献

相似文献