Map of Milky Way's Star-Forming Gases Lend a Stunning View of the Galaxy

Share on Facebook Tweet Share Reddit Comment
Map of Milky Way's Star-Forming Gases Lend a Stunning View of the Galaxy
A new map of the Milky Way covers our galaxy's densest regions of star formation, giving us an unprecedented look at the distribution of cold, dense gas from which stars are born.

The map - which was combined with previously collected data - is the result of the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL). The APEX (Atacama Pathfinder EXperiment - there are a lot of acronyms involved) studies the southern sky at submillimeter wavelengths - between infrared light and radio waves.

"Seen in visible light, these regions of the Universe are often dark and obscured due to the dust," the European Southern Observatory's website explains. "But they shine brightly in the millimetre and submillimetre part of the spectrum. This wavelength range is also ideal for studying some of the earliest and most distant galaxies in the Universe, whose light has been redshifted into these longer wavelengths."

APEX uses nearly 300 high-tech sensors kept at just 0.3 degrees above absolute zero to monitor minuscule changes in temperature. When incoming radiation meets one of the telescope's many detectors, it notes the resulting temperature increase and uses it to map cold swaths of gas and dust.

The new map covers an area of sky 140 degrees long and 3 degrees wide, which is more than four times the size of ATLASGAL's previous release. In the video and image above, you can see the ATLASGAL data in red. The background image - the blue stuff - comes from shorter infrared wavelength observations made by Nasa's Spitzer Space Telescope. The European Space Agency's Planck satellite provided more data to complete the picture, contributing the fainter red structures shown. The Planck satellite covers the entire night sky, but it does so at a lower resolution than APEX surveys the southern sky - which is where we can observe our galactic center.

© 2016 The Washington Post

Comments

For the latest tech news and reviews, follow Gadgets 360 on Twitter, Facebook, and subscribe to our YouTube channel.

Further reading: Milky Way, Nasa, Science
Quantum Break Developer Registers Trademark for 'Alan Wake's Return'
100 Stations to Get Wi-Fi This Year, Reiterates Railway Minister
 
 

Advertisement

 

Advertisement

© Copyright Red Pixels Ventures Limited 2019. All rights reserved.