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arXiv 1508.07071astro-ph.GA
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银河系附近GALEX的紫外更新星表

An Updated Ultraviolet Catalog of GALEX Nearby Galaxies

Yu Bai, Hu Zou, JiFeng Liu, Song Wang

摘要:

\citet{Gil07}制作的近星系紫外星表给出了\textit{Galaxy Evolution Explorer}(\textit{GALEX})观测到的1034个近星系的积分光度和表面亮度剖面。我们根据\textit{GALEX}的最新Genral Release(GR 6/GR 7)提供了一个更新的4138个邻近星系的星表。这些星系是从HyperLeda中选出的,其视直径大于1{ \arcmin }。从表面亮度轮廓精确测量的深NUV和FUV图像,我们已经计算出渐近幅度,孔径(D25)的幅度,颜色,结构参数(有效半径和浓度指数),光度,和有效的表面亮度。HyperLeda、2 MASS和IRAS的光学和红外测光档案也被整合到目录中。我们的参数测量和一些分析与\citet{Gil07}一致。(FUV $- K$)色提供了区分早型和晚型星系的一个很好的判据,可以用浓度指数进一步改进。IRX- $β$关系与我们的紫外选择附近的星系重新制定。

英文摘要:

The ultraviolet catalog of nearby galaxies made by \citet{Gil07} presents the integrated photometry and surface brightness profiles for 1034 nearby galaxies observed by \textit{Galaxy Evolution Explorer} (\textit{GALEX}). We provide an updated catalog of 4138 nearby galaxies based on the latest Genral Release (GR6/GR7) of \textit{GALEX}. These galaxies are selected from HyperLeda with apparent diameter larger than 1{\arcmin}. From the surface brightness profiles accurately measured with the deep NUV and FUV images, we have calculated asymptotic magnitudes, aperture (D25) magnitudes, colors, structural parameters (effective radii and concentration indices), luminosities, and effective surface brightness. Archival optical and infrared photometry from HyperLeda, 2MASS, and IRAS are also integrated into the catalog. Our parameter measurements and some analyses are consistent with those of \citet{Gil07}. The (FUV $- K$) color provides a good criterion to distinguish early and late-type galaxies, which can be improved further with the concentration indices. The IRX-$β$ relation is reformulated with our UV-selected nearby galaxies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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