Science news articles about 'brown dwarfs'

  • Astronomers weigh the coldest brown dwarfs with astronomy's sharpest eyes

    ... have measured the energy output and temperatures for a myriad of brown dwarfs. However, the most important property of all is the hardest ... will be a challenge for the theorists, and we are inspired to measure the masses of more brown dwarfs in the coming years to better understand ...
  • Brown dwarfs do form like stars

    Astronomers have uncovered strong evidence that brown dwarfs form like stars. Using the Smithsonian's Submillimeter ... formation mechanism. Whether an object ends up as a brown dwarf or star apparently depends only on the amount ...
  • Brown dwarfs do not hang out with stars

    Brown dwarfs, objects that are less massive than stars but larger than planets, just got more elusive ... 's Hubble Space Telescope. Hubble found only two brown dwarfs as companions to normal stars. This means the so-called 'brown dwarf desert' (the absence of brown dwarfs around solar-type ...
  • Brown Dwarfs Don't Hang Out With Stars

    Brown dwarfs, objects that are less massive than stars but larger than planets, just got more elusive ... 's Hubble Space Telescope. Hubble found only two brown dwarfs as companions to normal stars. This means the so-called "brown dwarf desert" (the absence of brown dwarfs around solar-type ...
  • Oldest Brown Dwarf: Coolest And Oldest Objects In Galaxy Measured From Calar Alto

    ... subdwarf stars whose distances have been measured by direct methods. Also, they have shown that one of the objects they observed is a brown dwarf, the oldest ...
  • Spitzer Telescope Observes Baby Brown Dwarf

    ... Space Telescope has contributed to the discovery of the youngest brown dwarf ever observed -- a finding that, if confirmed, may solve an astronomical mystery about how these cosmic misfits are formed ...
  • Brown dwarf pair mystifies astronomers

    ... and stars, but little is known about how they are made. "If we find one brown dwarf, we are not sure where it came from," Wolszczan ... from this is that a combination of physical mechanisms may be responsible for making brown dwarfs," Wolszsczan said. "Instead of just growth ...
  • Spitzer Telescope Observes Baby Brown Dwarf

    ... Space Telescope has contributed to the discovery of the youngest brown dwarf ever observed -- a finding that, if confirmed, may solve an astronomical mystery about how these cosmic misfits are formed ...
  • Small Companion to Brown Dwarf Challenges Simple Definition

    ... have discovered a planet-like object circling a brown dwarf. The companion is the right size for a planet ... in less than 1 million years (about the age of the brown dwarf) and much faster than the predicted time ...
  • Coolest stars come out of the dark: Spitzer spies frigid brown dwarfs

    ... known in our universe. These failed stars, called brown dwarfs, are so cold and faint that they'd be impossible to see with current visible-light telescopes ...
  • Brown dwarf found orbiting a young sun-like star

    ... , similar to the distance between Uranus and the sun. Most young brown dwarf and planetary companions found by direct imaging ... dust, which may have been sculpted by the gravitational interaction with the young brown dwarf companion. This makes the PZ Tel ...
  • A very cool pair of brown dwarfs

    ... inside a sauna [2]. "At such temperatures we expect the brown dwarf to have properties that are different from previously known ... objects as other possible contenders for the coolest known brown dwarfs, although their temperatures have not been measured so ...
  • A very cool pair of brown dwarfs

    Brown dwarfs are essentially failed stars: they lack enough mass for gravity to trigger the nuclear ... that make stars shine. The newly discovered brown dwarf, identified as CFBDSIR 1458+10B, is the dimmer member of a binary brown dwarf system located just 75 light-years ...
  • Two new brown dwarf Solar neighbors discovered

    ... Potsdam (AIP) have discovered two new brown dwarfs at estimated distances of only 15 and 18 light years from the Sun. For comparison: The next star ... years from the Sun, whereas the nearest known brown dwarfs, epsilon Indi Ba and Bb ...
  • NASA's Infrared Explorer Spots a Room-Temperature Brown Dwarf, the Coldest Star Ever Found

    ... have finally spotted a collection of ultra-cool brown dwarfs they have been hunting for more than a decade. These tepid almost ... +2650, is the green dot in the image below. Brown dwarfs, sometimes called failed stars ...

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