Using u band emission to trace star formation rates of galaxies

Zhimin Zhou
2016 Proceedings of the International Astronomical Union  
Star formation rate (SFR) is one of the most important diagnostics in understanding the evolution of galaxies across cosmic times. In order to explore the possibility of using the optical u-band luminosities to estimate SFRs of galaxies, we show the correlations between u band, Hα and infrared luminosities by combing the data from the South Galactic Cap u band Sky Survey (SCUSS) with the Sloan Digital Sky Survey (SDSS) and the Wide-field Infrared Survey Explorer (WISE). We derive the u versus
more » ... relation and the u and 12 μm relations to calibrate the u-band luminosity as an SFR indicator.
doi:10.1017/s1743921317002009 fatcat:etwpg3yzxncwnimtjnb7h3guje