Galaxy-Galaxy Interaction Plays a Minor Role in the Variation of the FIR-Radio Correlation of Star-Forming Galaxies

초록

We explored the effect of galaxy-galaxy interaction on the FIR-radio correlation of star-forming galaxies by comparing the q(FIR) parameter distribution between interacting and non-interacting galaxies. Our sample galaxies were selected from the SDSS Stripe 82 region, where relatively deep optical images are available in addition to ancillary FIR and radio data. The q(FIR) values were 2.73 +/- 0.49 and 2.53 +/- 0.90 for interacting and non-interacting galaxies, respectively. The t-test results indicated that the difference in q(FIR) values between the two categories is not statistically significant. Our findings align with those of previous studies suggesting that either FIR excess or radio excess occurs only transiently during brief timescales in the merger stages, rather than persisting throughout the majority of merger events identified by features such as tidal tails or double nuclei.

키워드