Galactic Environments Affect Star Formation Rate
TNRTB Archive – Retained for reference information
A team of South American scientists discovered more evidence of fine-tuning in galaxy development and star formation. The star formation history of a galaxy determines how quickly a star capable of forming a solar system like Earth’s can arise. Using two large surveys of galaxies (SDSS and 2dFGRS), the team analyzed over 1000 pairs of galaxies and found a strong dependence of the galaxies’ star formation history on the galaxies’ orbital parameters and global environment. Also, the team observed that galaxy mergers produce effective star formation only in low- to moderate-density galaxies—like the Milky Way Galaxy. Adequate star formation is required to support the stellar low-density regions in spiral galaxies where stable, life-supporting solar systems can avoid gravitational disruptions from passing stars. Such fine-tuning comports well with the notion of a supercaring Designer quickly preparing a suitable life-supporting planet where humans thrive.
- M. Sol Alonso et al., “Effects of Galaxy Interactions in Different Environments,” Monthly Notices of the Royal Astronomical Society 367 (2006): 1029-38.
- Related Resource
- Product Spotlight
- Journey Toward Creation 2nd ed., with Hugh Ross