Line flux measurement of infrared galaxies in the AKARI NEP field with Keck/DEIMOS
Abstract
We analyzed 553 spectra of infrared sources in the AKARI NEP deep field observed with Keck/DEIMOS in 2011. In previous work, we conducted a spectroscopic diagnostics of the sources based on relative line fluxes without the absolute flux calibration, and the analysis was not done for all detected sources due to a technical reason. In this work, we present a preliminary report on measurement of absolute line flux for all detected sources. For the flux calibration of the DEIMOS spectra, we adopted the photometric (r- or i-band) flux to determine the scaling factor of the average flux in the blue or red channel of DEIMOS. As a result of our analysis, we obtained emission spectra of 304 galaxies showing hydrogen recombination lines and forbidden lines of heavy elements, e.g., brackets O III brackets line.
- Publication:
-
The Cosmic Wheel and the Legacy of the AKARI Archive: From Galaxies and Stars to Planets and Life
- Pub Date:
- March 2018
- Bibcode:
- 2018cwla.conf..367S
- Keywords:
-
- techniques: spectroscopic;
- methods: data analysis;
- catalogs;
- infrared: galaxies;
- galaxies: star formation;
- galaxies: evolution