Handout photo released by
Nature shows a figure depicting the immense size of the black hole discovered
in the galaxy NGC 3842. NGC 3842, shown in the background image, is the
brightest galaxy in a rich cluster of galaxies. The black hole is at its center
and is surrounded by stars (shown as an artist's concept in the central
figure). Our solar system (inset) would be dwarfed by it. (AFP Photo/Pete
Marenfeld)
Scientists have discovered the two biggest black holes ever observed, each with a mass billions of times greater than the Sun's, according to a study published Monday.
The
two giants are located in the heart of a pair of galaxies several hundred
million light years from Earth,
said the study in scientific journal Nature.
Each
black hole is estimated to have a mass about 10 billion times greater than the
sun, dwarfing the previously largest-known black hole, which has a mass of 6.3
billion suns.
The
University of California,
Berkeley, team led by Nicholas McConnell and Chung-Pei Ma said one
black hole is located in NGC
3842, the brightest of a cluster
of galaxies about 320 million light years from Earth.
The
second hole is of "comparable or greater mass" and is located in NGC
4889, the brightest galaxy in the Coma cluster, about 335 million light years
away.
"These two black holes are significantly more massive than
predicted," the astronomers wrote.
They
said their calculations suggest that different evolutionary processes influence
the growth of the largest galaxies and their black holes than in smaller
galaxies.
Astronomers
have long supposed that since the universe began it has harboured black holes
with a mass the size of the two newly found giants.
These
cosmic gluttons grow in tandem with their galaxies, slurping up gases, planets
and stars.
"There is a symbiotic relationship between black holes and their
galaxies that has existed since the dawn of time," Kevin Schawinski, a
Yale astronomer said in a June study.
NOTE: Material like this is always highly engaging and makes you feel like there’s a reason to keep reading. As my favorite Traffic song put it, “Who Knows What Tomorrow May Bring?” Personally, I thought the biggest black hole ever discovered was Facebook, which seems to drain most useful energy from the universe, drawing it into little vicious circles of self-reference, unlike the efforts of the great Kasimir Malevich, Suprematist supreme.
Speaking of black holes and Facebook, you might be interested in this post on this Victorian blog. It reproduces an article from Punch in 1858, prophesying how Facebook, Twitter, and such have destroyed privacy and proportion.
ReplyDeleteHello and thanks so much for your note and restoring a little bit of my receding sanity after another long challenging day. LOVED the Punch article -- I never knew. I enjoyed reading your profile. We seem to have a lot in common. Please visit again. Curtis
ReplyDelete