قالب وردپرس درنا توس
Home / Trends / Giant galaxy named after pioneering dark matter researcher Vera Rubin

Giant galaxy named after pioneering dark matter researcher Vera Rubin



  Galaxy UGC 2885, taken by Hubble
Galaxy UGC 2885 may be the largest in the local universe. It is 2.5 times wider than our Milky Way and contains 10 times as many stars. This galaxy is 232 million light-years away and is in the northern constellation of Perseus. NASA, ESA and B. Holwerda (University of Louisville)

The Hubble Space Telescope has imaged this "gentle giant galaxy" UGC 2885, which is 2.5 times wider than the Milky Way and 1

0 times as many stars has like our home galaxy. Despite its enormous size, the galaxy is relatively docile. Only a few new stars are born, and only a small amount of hydrogen is absorbed by their supermassive black hole.

The huge size of the galaxy is a mystery, mostly because it appears to be growing so slowly. "We still don't know exactly how it got that big," said Benne Holwerda of the University of Louisville, Kentucky, who observed the galaxy with Hubble. "It's as big as you can make a disk galaxy without hitting anything else in space. It seems like it's slowly growing."

The galaxy is nicknamed Rubin's Galaxy after the one born in 1928 and deceased in 2016 Astronomer Vera Rubin was a pioneer, and her work on galaxy rotation rates was one of the earliest evidence of dark matter, although it took decades for the full impact of her research to be understood and appreciated Rotation, which is why it was named in her honor by Holwerda.

"My research was largely inspired by Vera Rubin's work in 1980 on the size of this galaxy," said Holwerda. "We consider this a commemorative image. The goal of quoting Dr. Rubin in our observation was an integral part of our original Hubb le proposal. ”

Ruby is honored in a different way and also because her name is linked to this mammoth galaxy. A dark matter investigation facility, formerly known as the Large Synoptic Survey Telescope (LSST), was recently renamed in her memory as the Vera C. Rubin Observatory.

She was also known for her work, which advocated for women in science throughout her life, questioning the sexism of scientific institutions in the 1960s and paving the way for more women to become involved in astronomy.

Recommendations from the editors





Source link