Sentences with phrase «called brown dwarfs»

Astronomers have also found planets that orbit pairs of stars rather than single stars, and other planets orbiting «failed» stars called brown dwarfs that aren't mighty enough to produce light and energy (or carry out fusion) like normal stars do.

The fact is, these cyclonal beauty marks whirl about the faces of the other gas giants, too, and possibly on their close cousins, the cool, starlike bodies called brown dwarfs.

This process, the astronomers explain, could provide an explanation for the very - low - mass «failed stars» called brown dwarfs.

Dim objects called brown dwarfs, less massive than the Sun but more massive than Jupiter, have powerful winds and clo... read more

To explain the MOA results, some theorists guessed that many of the purported rogue giant planets were actually free - floating failed stars called brown dwarfs — intermediate objects that straddle the hazy line between being a planet and a sun.

Gas - giant planets more massive than Jupiter — as well as «failed stars» called brown dwarfs — should conversely have much shallower winds.

Some MACHOs may be neutron stars left behind after supernovae explosions, but most are thought to be tiny failed stars called brown dwarfs which have a mass of less than 8 per cent that of the Sun and are too small to sustain nuclear fusion reactions.

Dim objects called brown dwarfs, less massive than the Sun but more massive than Jupiter, have powerful winds and clouds — specifically, hot patchy clouds made of iron droplets and silicate dust.

For that reason, Hyman's team has not ruled out a lower - energy source, such as magnetic outbursts from a dim «failed star» called a brown dwarf.

Brown - dwarf buddies: Astronomers still can't agree on what to call brown dwarfs: Are they failed stars, without enough mass to kick - start the nuclear reactions of typical stars, or are they supersize planets?

Perhaps the infrared light is coming from a companion small «failed» star, called a brown dwarf — or more intriguingly, from a rejuvenated planet.

Not exact matches

The brown dwarf in question, called LSR J1835 +3259, lies 18 light - years away, suggesting astronomers may soon glimpse auroras on similarly distant planets, too.

They argue that the brown dwarfs are in fact members of a much smaller spherical distribution of matter around the centre of the Galaxy, which they call the spheroid in order to avoid confusion with the extended dark halo.

Brown dwarfs are objects that are too large to be called planets, yet too small to be stars.

Published in Nature Astronomy and funded by the Science and Technology Facilities Council and the European Research Council, the study finds the remains of shattered asteroids orbiting a double sun consisting of a white dwarf and a brown dwarf roughly 1000 light - years away in a system called SDSS 1557.

Brown dwarfs are sometimes called failed stars.

Other astronomers find the detections convincing, although most reserve the name «planet» for bodies that form within a planetary system and orbit stars, says theorist Alan Boss of the Carnegie Institution of Washington in Washington, D.C. «They should call them «planetary - mass brown dwarfs,»» Boss says.

One study, led by Gene Serabyn of JPL, the overall lead of the Keck vortex project, presents the first direct image of the brown dwarf called HIP 79124 B.

The image also suggests that low mass brown dwarfs — objects that have the awkward distinction of being too large to be called planets and too small to be categorized as stars — may be more common than observations so far suggest.

Some astronomers believe brown dwarfs may exist in large numbers, helping account for the so - called missing mass» of galaxiesmatter galaxies seem to contain that can not be accounted for by observed celestial objects.

, Season 7, Episode 4: Dr. Jaysen Rand explains that the apocalypse is coming because of a certain brown dwarf star that he calls «Planet X»