Detection of Absorption Lines from Gas in the Cooling Flow in the Perseus Cluster

Details Detection of Absorption Lines from Gas in the Cooling Flow in the Perseus Cluster Detection of Absorption Lines from Gas in the Cooling Flow in the Perseus Cluster

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992hst..prop.3550j&link_type=abstract

HST Proposal ID #3550

Physics

Hst Proposal Id #3550

Scientific paper

We wish to take a deep FOS spectrum of the Seyfert nucleus in NGC1275 to search for absorption lines of CIV(1550A), SiIV(1400A) and CII(1335). These data will provide a vital link between the cooling flow gas seen at X-ray energies and the much colder gas seen through the emission of optical lines and the absorption of X-rays. Detailed study of the relative line strengths will give information on the presence of heating mechnisms in this temperature range. Detection of these lines will also provide direct evidence in support of the hypothesis that metal-line systems commonly observed in QSO spectra are formed in cooling flows present along the line of sight.

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