1. s-c-i-guy:

Fascinating rhythm: Light pulses illuminate a rare black hole

Astronomers have accurately measured — and thus confirmed the existence of — a rare intermediate-mass black hole about 400 times the mass of our sun in a galaxy 12 million light years from the Milky Way. The finding uses a technique never applied in this way before, and opens the door to new studies of these mysterious objects.

The universe has so many black holes that it’s impossible to count them all. There may be 100 million of these intriguing astral objects in our galaxy alone. Nearly all black holes fall into one of two classes: big, and colossal. Astronomers know that black holes ranging from about 10 times to 100 times the mass of our sun are the remnants of dying stars, and that supermassive black holes, more than a million times the mass of the sun, inhabit the centers of most galaxies.

But scattered across the universe like oases in a desert are a few apparent black holes of a more mysterious type. Ranging from a hundred times to a few hundred thousand times the sun’s mass, these intermediate-mass black holes are so hard to measure that even their existence is sometimes disputed. Little is known about how they form. And some astronomers question whether they behave like other black holes.

Now a team of astronomers has accurately measured — and thus confirmed the existence of — a black hole about 400 times the mass of our sun in a galaxy 12 million light years from Earth. The finding, by University of Maryland astronomy graduate student Dheeraj Pasham and two colleagues, was published online August 17 in the journal Nature.
Source

    s-c-i-guy:

    Fascinating rhythm: Light pulses illuminate a rare black hole

    Astronomers have accurately measured — and thus confirmed the existence of — a rare intermediate-mass black hole about 400 times the mass of our sun in a galaxy 12 million light years from the Milky Way. The finding uses a technique never applied in this way before, and opens the door to new studies of these mysterious objects.

    The universe has so many black holes that it’s impossible to count them all. There may be 100 million of these intriguing astral objects in our galaxy alone. Nearly all black holes fall into one of two classes: big, and colossal. Astronomers know that black holes ranging from about 10 times to 100 times the mass of our sun are the remnants of dying stars, and that supermassive black holes, more than a million times the mass of the sun, inhabit the centers of most galaxies.

    But scattered across the universe like oases in a desert are a few apparent black holes of a more mysterious type. Ranging from a hundred times to a few hundred thousand times the sun’s mass, these intermediate-mass black holes are so hard to measure that even their existence is sometimes disputed. Little is known about how they form. And some astronomers question whether they behave like other black holes.

    Now a team of astronomers has accurately measured — and thus confirmed the existence of — a black hole about 400 times the mass of our sun in a galaxy 12 million light years from Earth. The finding, by University of Maryland astronomy graduate student Dheeraj Pasham and two colleagues, was published online August 17 in the journal Nature.

    Source

    2 days ago  /  29 notes  /  Source: cmns.umd.edu

  2. photo

    1 week ago  /  890 notes  /  Source: s-c-i-guy

  3. Fire in the sky on Flickr.

    Fire in the sky on Flickr.

    1 week ago  /  0 notes

  4. photo

    photo

    photo

    photo

    photo

    photo

    1 week ago  /  1,245 notes  /  Source: archatlas

  5. photo

    photo

    1 week ago  /  6,290 notes  /  Source: skunkbear

  6. 1 week ago  /  3,061 notes  /  Source: -teesa-

  7. untitled by adam.hrabovsky on Flickr.Scout, the famous Border Collie pup

    untitled by adam.hrabovsky on Flickr.

    Scout, the famous Border Collie pup

    1 week ago  /  1 note

  8. photo

    photo

    photo

    photo

    photo

    photo

    2 weeks ago  /  1,500 notes  /  Source: ted

  9. The rain on Flickr.

    The rain on Flickr.

    2 weeks ago  /  0 notes