Data from: xGASS: The impact of photometric bulges on the scatter of HI scaling relations

Name: Data from: xGASS: The impact of photometric bulges on the scatter of HI scaling relations
Creator: The University of Western Australia
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Research Data Australia2024-12-14 收录

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https://researchdata.edu.au/data-from-xgass-scaling-relations/1696164

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We present a structural decomposition analysis of the galaxies in the extended GALEX Arecibo SDSS Survey (xGASS) using (gri) images from the Sloan Digital Sky Survey. Utilizing the 2D Bayesian light profile fitting code ProFit, we fit single- and double-component models taking advantage of a robust Markov chain Monte Carlo optimization algorithm in which we assume a Sersic profile for single-component models and a combination of a Sersic bulge and near-exponential disc (0.5

本研究针对扩展GALEX阿雷西博斯隆数字巡天（extended GALEX Arecibo SDSS Survey, xGASS）中的星系开展结构分解分析，所用数据取自斯隆数字巡天（Sloan Digital Sky Survey, SDSS）的(gri)波段图像。本研究借助二维贝叶斯光度轮廓拟合代码ProFit，采用稳健的马尔可夫链蒙特卡洛（Markov Chain Monte Carlo）优化算法对单组分与双组分模型进行拟合：单组分模型采用塞斯克轮廓（Sersic profile），双组分模型由塞斯克核球与近指数盘组合而成（0.5

提供机构：

The University of Western Australia