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arXiv 1303.5328astro-ph.CO
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更新的附近星系目录

Updated Nearby Galaxy Catalog

Igor D. Karachentsev, Dmitry I. Makarov, Elena I. Kaisina

摘要:

我们提供了一个包含869个邻近星系的全天星表,这些星系的个体距离估计值在11 Mpc以内,或经校正的径向速度V_{LG} < 600 km/s。该星表是Karachentsev et al.(2004)的“邻星系表”的更新和扩展版本。它收集星系的下列观测数据:角直径、FUV、B和K_s波段的视星等、H_alpha和HI通量、形态类型、HI线宽、径向速度和距离估计。在这个本地体积(LV)样本中,108个矮星系仍然没有测量径向速度。该目录还计算了全球星系参数:线性Holmberg直径,绝对B-星等,表面亮度,HI-质量,通过K-波段光度估计的恒星质量,HI旋转速度校正星系倾角,指示质量内Holmberg半径,和三种“潮汐指数”,量化局部密度环境。该星表补充了基于本星系的数据(http://www.sao.ru/lv/lvgdb),其中提供了它们的光学和可用的H_alpha图像,以及其他服务。我们简要地讨论了哈勃流的LV内,不同的标度关系,在他们的星系结构和全球性的恒星形成的特点。我们还跟踪的行为,平均恒星质量密度,高质量密度和恒星形成率密度在考虑的体积。

英文摘要:

We present an all-sky catalog of 869 nearby galaxies, having individual distance estimates within 11 Mpc or corrected radial velocities V_{LG} < 600 km/s. The catalog is a renewed and expanded version of the "Catalog of Neighboring Galaxies" by Karachentsev et al. (2004). It collects data on the following observables for the galaxies: angular diameters, apparent magnitudes in FUV-, B-, and K_s- bands, H_alpha and HI fluxes, morphological types, HI-line widths, radial velocities and distance estimates. In this Local Volume (LV) sample 108 dwarf galaxies remain to be still without measured radial velocities. The catalog yields also calculated global galaxy parameters: linear Holmberg diameter, absolute B-magnitude, surface brightness, HI-mass, stellar mass estimated via K-band luminosity, HI rotational velocity corrected for galaxy inclination, indicative mass within the Holmberg radius, and three kinds of "tidal index", which quantify the local density environment. The catalog is supplemented with the data based on the local galaxies (http://www.sao.ru/lv/lvgdb), which presents their optical and available H_alpha images, as well as other service. We briefly discuss the Hubble flow within the LV, and different scaling relations that characterize galaxy structure and global star formation in them. We also trace the behavior of the mean stellar mass density, HI-mass density and star formation rate density within the considered volume.

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