KMTNet Nearby Galaxy Survey: Overview and Survey Description

被引：2
|
作者：
Byun, Woowon [1 ,2 ]
Sheen, Yun-Kyeong [1 ]
Seon, Kwang-, II [1 ,2 ]
Ho, Luis C. [3 ,4 ]
Lee, Joon Hyeop [1 ]
Jeong, Hyunjin [1 ]
Kim, Sang Chul [1 ,2 ]
Park, Byeong-Gon [1 ]
Lee, Yongseok [1 ,5 ]
Cha, Sang-Mok [1 ,5 ]
Kim, Minjin [6 ]
机构：
[1] Korea Astron & Space Sci Inst, Daejeon 34055, South Korea
[2] Univ Sci & Technol, Daejeon 34113, South Korea
[3] Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
[4] Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
[5] Kyung Hee Univ, Sch Space Res, Yongin 17104, Kyeonggi, South Korea
[6] Kyungpook Natl Univ, Dept Astron & Atmospher Sci, Daegu 41566, South Korea
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 2022年 / 134卷 / 1039期
基金：
美国国家科学基金会; 新加坡国家研究基金会;
关键词：
EXTENDED ULTRAVIOLET DISK; STAR-FORMATION RATE; INITIAL MASS FUNCTION; EXTREME OUTER DISK; H-ALPHA; FORMING GALAXIES; DWARF GALAXIES; STELLAR HALOS; LOCAL VOLUME; DEEP;
D O I：
10.1088/1538-3873/ac8ed4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Recently, there has been increasing demand for deep imaging surveys to investigate the history of the mass assembly of galaxies in detail by examining the remnants of mergers and accretions, both of which have very low surface brightness (LSB). In addition, the nature of star formation in LSB regions, such as galaxy outer disks, is also an intriguing topic in terms of understanding the physical mechanisms of disk evolution. To address these issues, this study conducted a survey project, called the Korea Microlensing Telescope Network Nearby Galaxy Survey, to construct a deep imaging data set of nearby galaxies in the southern hemisphere. It provides deep and wide-field images with a field of view of similar to 12 deg(2) for 13 nearby galaxies drawn from the Carnegie-Irvine Galaxy Survey catalog in optical broad bands (BRI) and an H alpha narrow band. Through a dedicated data reduction, the surface brightness limit in 10 '' x 10 '' boxes was found to reach as deep as mu (1 sigma ) similar to 29-31 mag arcsec(-2) in the optical broad bands and f (1 sigma ) similar to 1-2 x 10(-18) erg s(-1) cm(-2) arcsec(-2) in the H alpha narrow band. To conclude the paper, several possible scientific applications for this data set are described.
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页数：25
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