GOODS-Herschel: the impact of galaxy-galaxy interactions on the far-infrared properties of galaxies

Details GOODS-Herschel: the impact of galaxy-galaxy interactions on the far-infrared properties of galaxies GOODS-Herschel: the impact of galaxy-galaxy interactions on the far-infrared properties of galaxies

2011-09-09

arxiv.org/abs/1109.1937v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

10 pages, 6 figures. To appear in A&A

Scientific paper

We study the impact of galaxy-galaxy interactions on the FIR properties of galaxies and its evolution at 099%. However, the SFR and the SSFR decrease or do not change much as it approaches an early-type neighbor. The bifurcations of SFRs and SSFRs depending on the neighbor's morphology seem to occur at R_n~0.5r_vir,nei, which is supported by K-S and MC tests with a significance level of >98%. For all redshift bins, the SSFRs of late-type galaxies interacting with late-type neighbors are increased by factors of about 1.8+/-0.7 and 4.0+/-1.2 compared to those of non-interacting galaxies when the pair separation is smaller than 0.5r_vir,nei and 0.1r_vir,nei, respectively. The Tdust of both local and high-z late-type galaxies strongly interacting with late-type neighbors (i.e. R_n < 0.1r_vir,nei) appears to be higher than that of non-interacting galaxies with a significance level of 96-99%. However, Tdust of local late-type galaxies strongly interacting with early-type neighbors seems to be lower than or similar to that of non-interacting galaxies. Our results suggest that galaxy-galaxy interactions and mergers have been strongly affecting the SFR and the dust properties of star-forming galaxies over at least 8 billion years.

Affiliated with

Also associated with

No associations

Rating

GOODS-Herschel: the impact of galaxy-galaxy interactions on the far-infrared properties of galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with GOODS-Herschel: the impact of galaxy-galaxy interactions on the far-infrared properties of galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GOODS-Herschel: the impact of galaxy-galaxy interactions on the far-infrared properties of galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-413249