Color and Morphological Properties of Local and High-Ζ(U)LIRGs
With the advent of large multi-wavelength deep-sky surveys, it is now possible to explore the origin and evolution of luminous infrared galaxies (LIRGs) out to high redshifts, where these interacting systems are known to play a dominant role in galaxy formation and evolution. However, these surveys currently lack sensitive far-infrared imaging data to directly identify LIRGs at high Ζ. Unlike for the large population of normal galaxies, there is surprisingly little accurate photometry and high-resolution data in the literature for local LIRGs. Here we compile new accurate photometry and high-resolution imaging data for a complete subsample of 45 local (Ζ < 0.1) LIRGs from the Revised Bright Galaxy Sample, and use these data to predict the range of colors and.morphologies of LIRGs at high redshift. We then compare our results with previous color diagnostics (e.g. BzK) and morphological parameters (e.g. Concentration, Asymmetry) that have been used in an attempt to select LIRGs at high Ζ. The effectiveness of various existing selection techniques are subsequently assessed.
galaxies interactions galaxies photometry infrared galaxies
Vivian U David B.Sanders
Institute for Astronomy,University of Hawaii, Honolulu,HI,USA Institute for Astronomy,University of Hawaii, Honolulu, HI,USA
国际会议
The 10th Asian-Pacific Regional International Astronomical Union Meeting(第十届亚洲及太平洋地区天文学大会 APRIM)
昆明
英文
331-334
2008-08-03（万方平台首次上网日期，不代表论文的发表时间）