Galaxy disc central surface brightness distribution in the optical and near-infrared bands
Galaxy disc central surface brightness distribution in the optical and near-infrared bands
复制标题
银河盘中心表面在光学和近红外波段的亮度分布
DOI:
10.1093/mnras/stz061
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发表时间:
2019-01
影响因子:
4.8
通讯作者:
Wang Y H
中科院分区:
文献类型:
--
作者:
Zhou L;Du W;Wu H;Liang Y C;He M;Zhao P S;Deng L C;Shi W B;Wang Y H
To study the disc central surface brightness ($\mu_0$) distribution in optical and near-infrared bands, we select 708 disc-dominated galaxies within a fixed distance of 57 Mpc from SDSS DR7 and UKIDSS DR10. Then we fit $\mu_0$ distribution by using single and double Gaussian profiles with an optimal bin size for the final sample of 538 galaxies in optical $griz$ bands and near-infrared $YJHK$ bands.
Among the 8 bands, we find that $\mu_{0}$ distribution in optical bands can not be much better fitted with double Gaussian profiles. However, for all the near-infrared bands, the evidence of being better fitted by using double Gaussian profiles is positive. Especially for $K$ band, the evidence of a double Gaussian profile being better than a single Gaussian profile for $\mu_{0}$ distribution is very strong, the reliability of which can be approved by 1000 times test for our sample. No dust extinction correction is applied. The difference of $\mu_{0}$ distribution between optical and near-infrared bands could be caused by the effect of dust extinction in optical bands. Due to the sample selection criteria, our sample is not absolutely complete. However, the sample incompleteness does not change the double Gaussian distribution of $\mu_{0}$ in $K$ band. Furthermore, we discuss some possible reasons for the fitting results of $\mu_{0}$ distribution in $K$ band. Conclusively, the double Gaussian distribution of $\mu_{0}$ in $K$ band for our sample may depend on bulge-to-disk ratio, color and disk scalelength, rather than the inclination of sample galaxies, bin size and statistical fluctuations.
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DOI:
10.1086/430186
发表时间:
2005-06
期刊:
AJ, 129, 2628
影响因子:
--
作者:
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通讯作者:
Jiansheng
DOI:
10.1086/117825
发表时间:
1996-02
期刊:
The Astronomical Journal
影响因子:
--
作者:
I. Karachentsev;D. Makarov
通讯作者:
I. Karachentsev;D. Makarov
DOI:
10.1111/j.1365-2966.2007.12040.x
发表时间:
2006-04
影响因子:
4.8
作者:
A. Lawrence;S. Warren;O. Almaini;A. Edge;N. Hambly;R. Jameson;P. Lucas;M. Casali;A. Adamson
通讯作者:
A. Lawrence;S. Warren;O. Almaini;A. Edge;N. Hambly;R. Jameson;P. Lucas;M. Casali;A. Adamson
影响因子:
4.9
作者:
Hao, C. N.;Jing, Y. P.;Mao, S.;Li, Cheng
通讯作者:
Li, Cheng
DOI:
10.1088/0004-637x/789/1/76
发表时间:
2014-06
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Y. Mao;X. Kong;Lin Lin-Lin
通讯作者:
Y. Mao;X. Kong;Lin Lin-Lin