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
复制
发表时间:
2019-01
影响因子:
4.8
通讯作者:
Wang Y H
Wang Y H
中科院分区:
物理与天体物理2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

文献摘要

参考文献

相似文献

为了研究盘中心表面亮度($\mu_0$)分布在光学和近红外波段,我们选择了708盘占主导地位的星系在一个固定的距离为57 Mpc的SDSS DR 7和UKIDSS DR 10。然后,我们拟合$\mu_0$分布,通过使用单和双高斯配置文件与最佳箱大小的最终样本的538个星系在光学$griz$和近红外$YJHK$波段。 在这8个波段中,我们发现光学波段的$\mu {0}$分布不能很好地用双高斯分布拟合。然而,对于所有的近红外波段,使用双高斯分布更好地拟合的证据是积极的。特别是在K波段,双高斯分布优于单高斯分布的证据非常强,其可靠性可以通过对样本的1000次检验得到证实。未应用灰尘消光校正。光学波段和近红外波段的$\mu {0}$分布的差异可能是由于尘埃消光效应造成的。由于样本选择标准,我们的样本并不完全完整。然而,样本的不完全性并不改变$\mu {0}$在$K$波段的双高斯分布。此外,我们还讨论了K波段$\mu {0}$分布拟合结果的一些可能原因。因此,我们的样本中K带$\mu {0}$的双高斯分布可能取决于球盘比、颜色和盘标度长度,而不是样本星系的倾角、面元大小和统计涨落。
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.
M87 13 个光波段的深表面光度测量
DOI: 10.1086/430186
发表时间: 2005-06
期刊: AJ, 129, 2628
影响因子: --
作者:
Liu;Ying;Zhou;Xu;Ma;Jun;Wu;Hong;Yang;Yanbin;Li;Jiuli;Chen;Jiansheng
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
附近大质量早型星系的光度特性和光度函数
DOI: 10.1088/0004-637x/773/1/37
发表时间: 2013-05
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