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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50796


    Title: THE INFORMATION OF THE MILKY WAY FROM TWO MICRON ALL SKY SURVEY WHOLE SKY STAR COUNT: THE LUMINOSITY FUNCTION
    Authors: Chang,CK;Ko,CM;Peng,TH
    Contributors: 天文研究所
    Keywords: GALACTIC MODEL PARAMETERS;HIGH-LATITUDES;2MASS;DENSITY;SDSS;DISTANCE;GALAXY;PLANE;FLARE;SOUTH
    Date: 2010
    Issue Date: 2012-03-27 18:10:18 (UTC+8)
    Publisher: 國立中央大學
    Abstract: The logarithmic differential star count of the Two Micron All Sky Survey in K(s) band can be well approximated by a single power-law luminosity function. With a fiducial Galactic structure, we measure the luminosity function for the entire Milky Way. The distribution of the power-law index is roughly isotropic and shows no obvious trend with the Galactic latitude. The value for the power-law index, the bright and the faint ends of the luminosity function are 1.85 +/- 0.035, K(s) = -7.86 +/- 0.60 mag, and K(s) = 6.88 +/- 0.66 mag, respectively. Our result strongly supports the notion of a universal luminosity function in our Galaxy. We also find that the luminosity function of LMC/SMC is similar to that of the Milky Way.
    Relation: ASTROPHYSICAL JOURNAL
    Appears in Collections:[天文研究所] 期刊論文

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