Feeds

Brown dwarf cools its jets

Cool pic too...

Bridging the IT gap between rising business demands and ageing tools

Astronomers at the European Southern Observatory (ESO) VLT have found jets coming out from a 24 Jupiter-mass brown dwarf, or failed star, similar to the jets that are found coming out of young, but fully fledged stars.

These jets, or "outflows" as they are known, are ubiquitous in the universe, having been seen on everything from galactic cores, right down to new born stars. But this particular brown dwarf is the smallest ever object to be confirmed as having outflows.

"This leads us to the tantalising prospect that young giant planets could also be associated with outflows," says Emma Whelan, the lead-author of the paper reporting the results.

An artist's impression

Indeed, the research team suggests that the jets could be driven by gas-giant planets as "small" as Jupiter.

The observation itself was tricky: brown dwarves do not light up the sky like a normal young star, so the jets are not bright enough to be seen directly. As well as being relatively dim, they are small. Although in reality they stretch for about a billion km from the failed star, they appear to us on Earth to be the same size as a two Euro coin seen at a distance of 40km.

To make their observations, the astronomers used a technique known as spectro-astrometry, based on high resolution spectra taken with UVES on the VLT (Very Large Telescope).

"Discoveries like these are purely reliant on excellent telescopes and instruments, such as the VLT," says Whelan.

"Our result also highlights the incredible level of quality which is available today to astronomers: the first telescopes built by Galileo were used to observe the moons of Jupiter. Today, the largest ground-based telescopes can be used to observe a Jupiter size object at a distance of 200 light years and find it has outflows." ®

Mobile application security vulnerability report

More from The Register

next story
Bad back? Show some spine and stop popping paracetamol
Study finds common pain-killer doesn't reduce pain or shorten recovery
Malaysian Airlines flight MH17 claimed lives of HIV/AIDS cure scientists
Researchers, advocates, health workers among those on shot-down plane
Mwa-ha-ha-ha! Eccentric billionaire Musk gets his PRIVATE SPACEPORT
In the Lone Star State, perhaps appropriately enough
World Solar Challenge contender claims new speed record
One charge sees Sunswift travel 500kms at over 100 km/h
SMELL YOU LATER, LOSERS – Dumbo tells rats, dogs... humans
Junk in the trunk? That's what people have
All those new '5G standards'? Here's the science they rely on
Radio professor tells us how wireless will get faster in the real world
The Sun took a day off last week and made NO sunspots
Someone needs to get that lazy star cooking again before things get cold around here
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.