| |
 |
| Paper: |
12CO (J=1-0) Survey with NRO 45 m of GOALS Luminous Infrared Galaxies: Star Formation Efficiency against Galactic Merger and AGN Activity |
| Volume: |
476, New Trends in Radio Astronomy in the ALMA Era |
| Page: |
297 |
| Authors: |
Yamashita, T.; Komugi, S.; Matsuhara, H.; Armus, L.; Inami, H.; Stierwalt, S.; Kohno, K.; Iono, D.; Arimatsu, K. |
| Abstract: |
We present results of the 12CO(J=1-0) survey of
46 nearby luminous infrared galaxies (LIRGs) from the Great Observatories All-sky LIRG Survey (GOALS).
This survey aims to obtain molecular gas mass MH2 and to investigate the star-forming activity of local LIRGs.
The estimated star formation efficiency (SFE) is 9.0±5.5 Gyr-1 in average,
which is higher than normal IR galaxies but lower than ULIRGs.
No clear correlation was found either between the SFE and the 6.2μm PAH equivalent width;
an indicator of AGN activity, or between the SFE and the stage of the galaxy merging. |
|
|
|
|
|
