Talawanda Monroe Western Kentucky University         Faculty Sponsor: Richard Gelderman
        Tracking the Mass in Galaxy Cluster 2A 0335+096
  We present an analysis of long-slit spectroscopy and narrowband images of the galaxy cluster associated with 2A 0335+096. X-ray images obtained of this region suggest that a vast amount of extremely hot intracluster gas is present within the galaxy cluster. This intracluster gas must be cooling and settling into the center of the cluster. However, while radio observations reveal concentrations of cold, neutral hydrogen gas near the cluster center, the intermediate-temperature gas has not been previously observed. Our objective is to establish the location of the intermediate-temperature gas and its kinematic properties, and estimate the total mass of gas in the cluster. High dispersion long-slit spectra of the H?

+ [NII] emission lines were obtained along four slit positions, enabling us to probe multiple areas along the cluster of galaxies. The optical long-slit spectra allow us to measure the wavelengths and velocities of line emission gas emanating from the galaxies in the cluster. Knowledge of the velocity of the emitted gas provides information of the kinematics and ionization inside the cluster; allowing us to relate the hot, X-ray emitting gas, the warm, optical line emitting gas, and the cold neutral hydrogen gas detected in the radio.
 

 

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