천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제36권2호
- /
- Pages.73.1-73.1
- /
- 2011
- /
- 1226-2692(pISSN)
Quantitative Morphology of High Redshift Galaxies Using GALEX Ultraviolet Images of Nearby Galaxies
- Yeom, Bum-Suk (Department of Astronomy and Space Science, Chungnam National University) ;
-
Rey, Soo-Chang
(Department of Astronomy and Space Science, Chungnam National University) ;
- Kim, Young-Kwang (Department of Astronomy and Space Science, Chungnam National University) ;
- Kim, Suk (Department of Astronomy and Space Science, Chungnam National University) ;
-
Lee, Young-Dae
(Department of Astronomy and Space Science, Chungnam National University)
- 발행 : 2011.10.05
초록
An understanding of the ultraviolet (UV) properties of nearby galaxies is essential for interpreting images of high redshift systems. In this respect, the prediction of optical-band morphologies at high redshifts requires UV images of local galaxies with various morphologies. We present the simulated optical images of galaxies at high redshifts using diverse and high-quality UV images of nearby galaxies obtained through the Galaxy Evolution Explorer (GALEX). We measured CAS (concentration, asymmetry, clumpiness) as well as Gini/M20 parameters of galaxies at near-ultraviolet (NUV) and simulated optical images to quantify effects of redshift on the appearance of distant stellar systems. We also discuss the change of morphological parameters with redshift.
키워드