New Telescope helps Researchers detect 7 Dwarf Galaxies

New Telescope helps Researchers detect 7 Dwarf Galaxies

Researchers have discovered seven dwarf galaxies ranged around the M101 galaxy using a Dragonfly Telephoto Array type telescope. Yale astronomer chair Pieter van Dokkum and University of Toronto astronomer Roberto Abraham made use of the eight telephoto-lensed device to hunt down the seven new small galaxies.

Researchers are able get a better view after using this new type of telescope because of its ability to suppress internally scattered light. As a result, researchers are capable of viewing very diffuse, low surface brightness. It is very difficult for researchers to detect dwarf galaxies using conventional telescopes, which are actually apt for viewing brighter objects.

First images provided really exciting results, said Allison Merrit, a Yale graduate student and lead author of a paper that described about the discovery in the Astrophysical Journal Letters.

The Yale students are looking forward to find debris from long-ago galaxy collisions and other objects that don't give off as much light, which also includes seven newfound galaxies encircling the M101 spiral galaxy.

It is very important to know if the galaxies are actually near M101, or they are not as close as they appear. The researchers are excited about the discovery because they were able to yield results in the first try and these galaxies have been discovered for the first time ever in history. The discovery became possible because of the telescope they were using and it made scientists believe that there are many more such galaxies remaining to be found.

"It's a new domain. We're exploring a region of parameter space that had not been explored before. I'm confident that some of them will turn out to be a new class of objects. I'd be surprised if all seven of them are satellites of M101", said Astronomer Pieter van Dokkum, chair of Yale's astronomy department.


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