- Art by Judy Schmidt

SDSS J1143-0144 (2015)

A cluster of galaxies in various ball shapes, otherwise known as ellipticals. Some spirals are visible and some lenticulars. Some of them look intermediary and I would have a hard time saying they are one or the other. You can see here there was not as much integration time as the Frontier fields. Here is the result of around 2000 seconds of integration time per channel. Compare that with the 100000 seconds allotted to imaging a single channel for a Frontier Fields cluster! It’s much noisier and the extended structures of the galaxies are not well defined.

Around the nucleus of the largest galaxy appears to be some gravitational lensing forming what is known as an Einstein ring. The cluster generally does not present a visually dramatic gravitational lens, at least not compared to some of the others I’ve posted. Still, it’s good to have lots of samples to look at.

The chip gap has been filled with cloned data.

Data collected for proposal 10798:
Dark Halos and Substructure from Arcs & Einstein Rings

Red: HST_10798_06_ACS_WFC_F814W_sci
Green: pseudo
Blue: HST_10798_06_ACS_WFC_F555W_sci

North is NOT up. It is 28.1° clockwise from up.

Copyright information:
Hubble data is public domain. I do, however, request that you credit me for the processing of the image if you use it.

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 Unported License.