Abell 1758N BCG

Lore & Background

Abell 1758N BCG is classified as a radio galaxy, with a total estimated radio power of 14.6 ± 0.4 × 10^23 W Hz−1 and a radio flux density of 6.03 ± 0.15 mJy at 1.4 GHz. Radio emission is also present in the form of a radio halo. The optical spectrum of the BCG does not show emission lines, and its total magnitude measured by the Sloan Digital Sky Survey is 17.15. The heliocentric radial velocity is 83,489 kilometers per second.

The BCG has a total star formation rate of 0.93 M☉ per year at 24 micrometers, and its stellar mass is 0.486 × 10^12 M☉. The core of the BCG appears red based on the inner shape color profile, and the best fit surface brightness profile parameter is 51.53+0.33−0.42 kiloparsecs. The BCG is also an X-ray source with a rest-frame X-ray luminosity of 1.3 ± 0.4 erg s−1, and the X-ray peak of the northwestern subclump coincides with the position of the BCG.

Reader's Guide

Abell 1758N BCG is significant as the brightest cluster galaxy of the northern subcluster of Abell 1758, a galaxy cluster in the northwestern region. Its classification as a radio galaxy, with a measured radio power and flux density, along with the presence of a radio halo, marks it as a source of non-thermal emission. The absence of emission lines in its optical spectrum suggests a quiescent state regarding ionized gas. The galaxy's X-ray luminosity and the coincidence of the X-ray peak with its position indicate it is a central component of the subcluster's hot intracluster medium. The measured stellar mass and star formation rate provide constraints on its evolutionary state. The red core color and surface brightness profile parameters offer details on its structural properties. The galaxy's legacy lies in its role as a benchmark for studying massive elliptical galaxies in cluster environments, particularly in the context of radio and X-ray emission.

Did You Know?

• Abell 1758N BCG has a redshift of 0.278.
• Its total radio power is 14.6 ± 0.4 × 10^23 W Hz−1.