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| Paper: |
How Isolated are Low Surface Brightness Galaxies? News from SDSS |
| Volume: |
421, Galaxies in Isolation: Exploring Nature Versus Nurture |
| Page: |
81 |
| Authors: |
Herrera–Camus, R.; Galaz, G.; Lambas, D. G.; Padilla, N. |
| Abstract: |
Using SDSS-DR4 we studied the spatial distribution and the influence over star formation activity due to interactions in low and high surface brightness galaxies in the redshift range 0.01< z <0.1. With cylinder counts and projected distance to the fifth-nearest neighbor as environment tracers, we found that LSBs tend to have a lack of companions compared to HSBs in small scales (< 2 Mpc). Regarding the interactions, we found that the fraction of LSBs with strong star formation activity increases when the neighbor is closer than rp / r90 ∼ 4. The intensity of the reaction, measured by the average value of b, seems to be stronger for HSBs compared to LSBs. Our results suggest that, rather than be a condition for their survival and evolution, isolation of LSBs is connected with their formation scenario. |
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