The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 43 Issue 1
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- Pages.42.3-42.3
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- 2018
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- 1226-2692(pISSN)
Transformation of Surface Brightness Profile Types of Dwarf Galaxies : KMTNet Supernova Program Data
- Lee, Youngdae (Korea Astronomy and Space Science Institute) ;
- Park, Hong Soo (Korea Astronomy and Space Science Institute) ;
- Kim, Sang Chul (Korea Astronomy and Space Science Institute) ;
- Moon, Dae-Sik (Department of Astronomy and Astrophysics) ;
- Lee, Jae-Joon ;
- Kim, Dong-Jin (Korea Astronomy and Space Science Institute) ;
- Cha, Sang-Mok (Korea Astronomy and Space Science Institute)
- Published : 2018.05.08
Abstract
We investigate surface brightness profiles (SBPs) of dwarf galaxies in field, group, and cluster environments. Using images from the Korea Microlensing Telescope Network (KMTNet) Supernova Program (KSP) for the NGC 2784 group and SDSS for the Virgo cluster, SBP types are classified into profiles with single exponential (Type I), double exponential (Type II and Type III). Type II and Type III have smaller and larger outer sizes than inner sizes, respectively. SBP types of field dwarfs are compiled from a previous study. The distributions of SBP types are different in three environments. After comparing sizes of dwarfs in different environments, we suggest that since sizes of some dwarfs are changed due to the environmental effects, SBP types are able to be transformed. It makes that the distributions of SBP types in three environments are different.
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