Queen’s researchers lead the discovery of two potential polar ring galaxies. A group of international astronomers, including researchers from Queen’s University, has identified two potential polar ring galaxies, according to results published on September 13 in the Monthly Notices of the Royal As
“Polar ring galaxies are some of the most spectacular looking galaxies in the Universe. These findings suggest that one to three percent of nearby galaxies may have gaseous polar rings, which is much higher than suggested by optical telescopes.”Dr.
“These results are a really nice illustration of the tremendous value of mapping the sky more deeply and more widely than has ever been done before. This is serendipity at its best: we found things we certainly didn’t expect to find.”Dr. Kristine Spekkens, Professor , Department of Physics, Engineering Physics & and Astronomy, Queen’s University, CanadaFurther investigation of polar ring structures can help us better understand how galaxies evolve.
“These new ASKAP observations, which reveal astonishing ring-like structures around otherwise normal looking spiral galaxies, suggest that the accretion of gas through interactions with gas-rich companion galaxies is much more common than we previously believed. WALLABY will be an amazing resource to uncover many more of such systems in the future.”Professor Lister Staveley-Smith, WALLABY Co-Principal Investigator and Interim Executive Director.
“I’m excited to work with such a diverse and collaborative team. We were able to work with data that showed a fine grid of velocity channels, which are equivalent to the radio stations on your old-fashioned radio receiver. The richness of the velocity data meant I could assign multiple colours to this composite to subtly convey the motion happening within the polar ring.
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