Radio Triggered Star Formation in Cooling Flows

Abstract

The giant galaxies located at the centers of cluster cooling flows are frequently sites of vigorous star formation. In some instances, star formation appears to have been triggered by the galaxy's radio source. The colors and spectral indices of the young populations are generally consistent with short duration bursts or continuous star formation for durations much less than 1 Gyr, which is less than the presumed ages of cooling flows. The star formation properties are inconsistent with fueling by a continuously accreting cooling flow, although the prevalence of star formation is consistent with repeated bursts and periodic refueling. Star formation may be fueled, in some cases, by cold material stripped from neighboring cluster galaxies.

References in corpus (3)

• Spectral gradients in central cluster galaxies: further evidence of star formation in cooling flows
• The Extended Blue Continuum and Line Emission around the Central Radio Galaxy in Abell 2597
• An Alignment Effect in FR I Radio Galaxies: U-band Polarimetry of the Abell 2597 Cluster Central Galaxy

Cited by in corpus (5)

• Minkowski's Object: A Starburst Triggered by a Radio Jet, Revisited
• Radiative Shock-Induced Collapse of Intergalactic Clouds
• Jet-induced star formation in 3C 285 and Minkowski Object
• Anisotropic AGN Outflows and Enrichment of the Intergalactic Medium
• A Chandra X-ray Observation of Abell 1991: The Late Stages of Infall?