Computer Science
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7457d&link_type=abstract
HST Proposal ID #7457
Computer Science
Hst Proposal Id #7457 Clusters Of Galaxies
Scientific paper
We propose to obtain narrow-band NICMOS images of H_2 gas associated with the emission-line nebulae in cluster cooling flows. The intracluster gas at the centers of many clusters of galaxies can cool within a Hubble time, prompting the suggestion that the ICM in these clusters cools and flows towards the center, where it subsequently condenses. The central galaxies of clusters suspected to harbor such ``cooling flows'' frequently display luminous, extended emission line nebulae, apparently ionized by hot, young stars. Significant star formation is occuring in the central galaxies of these clusters, but at rates no more than 10 observations. Recent IR spectroscopic observations of clusters with optical line emission have shown that they invariably emit H_2 vibrational lines characteristic of ~ 2000 K molecular gas. Somehow molecular gas is accumulating at the centers of these clusters and turning into stars at rates that can be comparable to those in starburst galaxies. We propose to investigate the spatial distribution and morphology of the warm molecular gas using NICMOS narrow-band imaging. These images will reveal the relationships between the warm molecular component in these clusters and the ionized gas, the blue starlight, and the radio sources.
No associations
LandOfFree
Warm Molecular Hydrogen in Cluster Cooling Flow Nebulae 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 Warm Molecular Hydrogen in Cluster Cooling Flow Nebulae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Warm Molecular Hydrogen in Cluster Cooling Flow Nebulae will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-895725