螺旋星系中棒子探测的等等面法研究

2019 7th International Engineering, Sciences and Technology Conference (IESTEC) Pub Date : 2019-10-01 DOI:10.1109/IESTEC46403.2019.00025

M. Chacón, Rodney Delgado Serrano

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引用次数: 0

摘要

宇宙学上，星系内的恒星棒被认为是一个重要的内部因素，因为它们重新分配了星系中所有物质的角动量。这项工作的目的是比较通过改变外部元素的存在而构建的图像中恒星条的检测结果。本研究中使用的星系群是:M83 (NGC5236)， M66 (NGC3627)和NGC2903。利用IRAF ISOPHOTE / ELLIPSE工具对各星系的表面亮度分布进行分析。从同卵异构体的分析中，可以通过椭圆度(e)和位角(P.A.)的特征变化来识别棒材的结构。最后，我们在每个被研究的星系中都得到了积极的结果，我们发现结果不依赖于图像的类型。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Study about the Bars Detection in Spiral Galaxies Using the Isophotal Method

Cosmologically, the stellar bars within the galaxies are recognized as an important internal factor because they redistribute the angular momentum of all the matter in the galaxy. The objective of this work is to compare the results of detection of stellar bars in images constructed by varying the presence of external elements. The group of galaxies used in the present study are: M83 (NGC5236), M66 (NGC3627) and NGC2903. The IRAF ISOPHOTE / ELLIPSE tool is used to perform the analysis of the surface brightness distribution for each galaxy. The structure of a bar can be recognized by a characteristic change of ellipticity (e) and the position angle (P.A.) from the analysis of the isophotes. Finally, we got positive results detecting the central bar in each of the studied galaxies and we found that the results do not depend on the type of the image.

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2019 7th International Engineering, Sciences and Technology Conference (IESTEC)

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