Sunday, January 22, 2017
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Scientists create brown dwarf weather map


Posted on Thursday, 30 January, 2014 | Comment icon 7 comments

Conditions on the star are thought to be hellish. Image Credit: NASA/JPL-Caltech
The weather conditions found on a brown dwarf 6.5 light years away have been mapped for the first time.
Brown dwarfs are an unusual class of star that are larger than gas giant planets such as Jupiter but too small for a nuclear fusion cycle to be sustained. Far cooler than main-sequence stars like our sun, the surface conditions on these enigmatic worlds are nonetheless some of the most hellish seen anywhere in the universe.

Now for the first time scientists have used a technique known as Doppler imaging to produce a map of the weather likely to be experienced by someone visiting Luhman 16B, the closest known brown dwarf star.

The results suggest that the surface of this distant world is subjected to temperatures of up to 1,100C while molten iron rain cascades from gaseous metallic clouds high above.

The grim conditions are so bad in fact that Luhman 16B is now considered to be a contender for the "worst weather in the universe".

Source: Independent | Comments (7)

Tags: Brown Dwarf


 
Recent comments on this story
Comment icon #1 Posted by Waspie_Dwarf on 29 January, 2014, 23:47
Artist's impression of Luhman 16B recreated from VLT observationsThis video sequence is an artist's impression based on the first ever map of the weather on the surface of the nearest brown dwarf to Earth. An international team used ESO's Very Large Telescope to make a chart of the dark and light features on WISE J104915.57-531906.1B, which is informally known as Luhman 16B and is one of two recently discovered brown dwarfs forming a pair only six light-years from the Sun. Luhman 16A appears in the background in this sequence.Note that the faint fine detail on the surface of Luhman 16B has bee... [More]
Comment icon #2 Posted by Waspie_Dwarf on 29 January, 2014, 23:50
Surface map of Luhman 16B recreated from VLT observationsThis video shows the first ever map of the weather on the surface of the nearest brown dwarf to Earth. An international team has used ESO's Very Large Telescope to create a chart of the dark and light features on WISE J104915.57-531906.1B, which is informally known as Luhman 16B and is one of two recently discovered brown dwarfs forming a pair only six light-years from the Sun.This video shows the object as it rotates on its axis.Credit: ESO/I. CrossfieldSource: ESO Observatory
Comment icon #3 Posted by Waspie_Dwarf on 29 January, 2014, 23:59
Zooming in on the nearby brown dwarf Luhman 16BThis video starts with a broad view of the entire sky and closes in on the southern constellation of Vela (The Sails). In the final sequence, among huge numbers of faint stars, a very faint double object appears. This is WISE J104915.57-531906.1AB, which is informally known as Luhman 16AB. It is a recently discovered pair of brown dwarfs only six light-years from the Sun.Credit: ESO/I. Crossfield/N. Risinger (skysurvey.org)/Digitized Sky Survey 2Music: movetwoSource: ESO Observatory
Comment icon #4 Posted by Waspie_Dwarf on 30 January, 2014, 0:01
Flying among the closest stars to the Solar SystemThis video takes you on a fly-through of the space around the nearest stars to the Sun. Some familiar stars are visible, such as Alpha Centauri, Sirius and Barnard's Star, but there is also a faint object only discovered in early 2013 — this is WISE J104915.57-531906.1AB, which is informally known as Luhman 16AB, a recently discovered pair of brown dwarfs only six light-years from the Sun. It is the third closest system to the Solar System.Credit: ESO/I. Crossfield/N. Risinger (skysurvey.org)Source: ESO Observatory
Comment icon #5 Posted by Calibeliever on 30 January, 2014, 15:26
Nice vids, especially the last one. Really gives you some perspective.
Comment icon #6 Posted by HecticSherlock on 30 January, 2014, 19:44
Interesting indeed!
Comment icon #7 Posted by Merc14 on 30 January, 2014, 22:03
Great stuff thanks!


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

5858399
264646
165148

 
Some of us are able to 'hear' flashes of light
1-21-2017
Scientists have identified a form of synaesthesia that may affect more than one fifth of the population.
Fresh doubts cast on Tunguska impact theory
1-21-2017
Russian scientists have found evidence to suggest that the impact crater may predate the event itself.
Mystery surrounds Skittles spill in Wisconsin
1-21-2017
Authorities have been investigating how thousands of Skittles ended up scattered across a rural highway.
Nearby planet Wolf 1061c may be habitable
1-20-2017
Astronomers believe that a planet 14 light years away may be a promising place to look for alien life.
Featured book
 
By Toryn Chapman
Campbell Mackenzie is a successful lawyer with occasional feelings of déjà vu. There's just one problem, though - it's not déjà vu.
Featured Videos
Gallery icon 
What would happen if you fell 365 meters ?
Posted 1-21-2017 | 2 comments
A look at what would happen if you were unfortunate enough to fall from a great height.
 
A colorful 'landing' on Pluto
Posted 1-20-2017 | 0 comments
This NASA movie explores would it might be like to land on the dwarf planet Pluto.
 
The future of warfare
Posted 1-19-2017 | 2 comments
Drone armies and laser cannons may become increasingly common in the near future.
 
 View: More videos
Stories & Experiences
Phantom vehicle
1-6-2017 | Ramer, United States
 
True ghost stories
1-6-2017 | Southern California
 
Floating tiles
1-6-2017 | Chewelah, Washington
 
A haunting in Northern California
12-28-2016 | Northern California
 
Strange creature in South Africa
12-28-2016 | South Africa, Hoedspruit.
 
A 15-year-old predicted my future!
12-21-2016 | Katherine, Australia
 
The haunted pond
12-21-2016 | Essex, Ontario, Canada
 
The haunted hospital
12-28-2016 | New Plymouth, New Zealand
 
Loud crash in the night
12-17-2016 | Pennsylvania
 
Mysterious woman in a blue dress
12-17-2016 | Northern Ireland
 

         More stories | Send us your story
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com © 2001-2017
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ