Sentences with phrase «brown dwarfs closer»

The vortex coronagraph has the potential to image planetary systems and brown dwarfs closer to their host stars than was possible previously.

With WISE, we may even find a brown dwarf closer to us than our closest known star.»

Not exact matches

In April an international team announced that it had found a brown dwarf just nine light - years away, the closest one ever detected.

Close encounter Tracing the trajectory of the star and its brown dwarf companion back in time, Mamajek's team found with 98 % confidence that Scholz's star passed within the Solar System's Oort cloud, a reservoir of comets, about 70,000 years ago.

Scientists are looking closer at brown dwarfs to learn more about the formation of stars and planets.

The faint spot close to the brighter brown dwarf star may be the very first real image of an exoplanet.

Brown dwarfs that orbit close to their parent stars run the risk of being swallowed whole.

But astronomers have always wondered about the paucity of close - in brown dwarfs: While many giant planets have been found in small orbits, whirling around their sunlike stars in just a few days, the more massive brown dwarfs appear to shun these intimate relationships.

Indeed, the few close - in brown dwarfs that have been found orbit stars that are hotter and more massive than our sun, and spin faster.

The reason: If a brown dwarf orbits close to its star, both objects raise tides, just as the moon raises tides on Earth.

All of the thousands of brown dwarfs found so far are relatively close to the Sun, the overwhelming majority within 1500 light years, simply because these objects are faint and therefore difficult to observe.

In March of 2013, Luhman's analysis of the images from WISE uncovered a pair of much warmer brown dwarfs at a distance of 6.5 light years, making that system the third closest to the Sun.

The failure, thus far, to find large substellar objects like brown dwarfs or a Jupiter - or Saturn - class planet in a «torch» orbit (closer han the Mercury to Sun distance) around 107 Piscium — with even the highly sensitive radial - velocity technique of Geoffrey W. Marcy and R. Paul Butler — bodes well for the possibility of Earth - type terrestrial planets around this star (Cumming et al, 1999).

Although the nature of the electromagnetic engine powering brown - dwarf aurorae is still to be determined, the scenario of the subcorotation of magnetospheric plasma on closed field lines, powering in turn magnetosphere - ionosphere coupling currents, has been suggested as a plausible model for this case (Schrijver 2009; Nichols et al. 2012).

Finally, we analyze the sensitivity of our data to additional closer - in companions and reject the possibility of other massive brown dwarf companions down to 4 - 5 AU.

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.

With a brown dwarf within a parsec of our own system being a hopeful and still - possible scenario for a more - accessible long - term destination than the Alpha Centauri system, I'd say the idea and hope that there could be something even semi-habitable in close orbit around that brown dwarf is a lot more exciting than just rocks or iceballs.

It seems to me that the closest thing we currently have to a brown dwarf is Jupiter and its moons.

This 4 - panel image shows the coldest brown dwarf yet seen, and the fourth closest system to our sun.

The Webb telescope, using spectroscopy to study the chemical composition of such disks, will be able to examine this finding in greater detail, pinpointing just how much water is present in the region close to the star, and looking at whether the discovery extends to lower - mass stars and even dim «brown dwarf» stars.

A goal of the Backyard Worlds project is to see whether there are any brown dwarfs that are even closer than Proxima Centauri, which is the nearest star to our sun at about 4.2 light years» distance.

The failure, thus far, to find large substellar objects like brown dwarfs or a Jupiter - or Saturn - class planet in a «torch» orbit (closer than the Mercury to Sun distance) around Xi Boötis A — with even the highly sensitive radial - velocity methods of Geoffrey W. Marcy and R. Paul Butler — bodes well for the possibility of Earth - type terrestrial planets around this star (Cumming et al, 1999).