Age Sequence in Small Clusters Associated with Bright-Rimmed Clouds
/ Abstract
Bright-rimmed clouds (BRCs) found in H II regions are probable sites of triggered star formation due to compression by ionization/shock fronts, and it is hypothesized that star formation proceeds from the exciting star(s) side outward of the H II region (“small-scale sequential star formation”). In order to quantitatively test this hypothesis we undertook BVIc photometry of four BRC aggregates. The amounts of interstellar extinction and reddening for
Journal: Publications of the Astronomical Society of Japan