ZwCl 3179 BCG (Short for Zwicky Cluster 3179 Brightest Cluster Galaxy) is a massive elliptical galaxy located in the constellation of Leo. The redshift of the galaxy is (z) 0.142 and it is the brightest cluster galaxy of the X-ray galaxy cluster ZwCl 3179.
Description ZwCl 3179 BCG is classified as a central cluster galaxy (CCG) of ZwCl 3179. The optical spectrum of the BCG displays both blue and red emission lines of nitrogen, sulfur, and oxygen, with the total hydrogen-alpha luminosity 40.92 erg s−1. A spiral galaxy is located in the foreground in the northwest direction from the BCG separated by 110 arcseconds.
The total stellar mass of the BCG is 12.36 ± 0.09 , while the stellar velocity dispersion is 353 ± 14 kilometers per seconds. There is an emission line nebula within the BCG displaying quiescent gas, with the lines displaying a full width at half maximum (FWHM) of 482 ± 82 kilometers per second.
The BCG is a radio galaxy containing a compact radio source based on mJy imaging made with the Very Long Baseline Array (VLBA). The radio core has a total flux density of 24.6 mJy, while the non-core component at 1 GHz frequencies has a flux density of 146.6 ± 38.9 mJy with a flat spectral index of 0.2. The radio emission is also mainly core-dominated, with the total radio flux estimated as 94 mJy at 1.4 GHz.
The BCG is also an X-ray galaxy with a bright X-ray source shown to coincide with its position. The total X-ray luminosity of the source is 3.14 × 1044 erg s−1.
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