Home » News & Blogs » Image of the Day: Rare Cosmic Red Blobs --Regions of Hyper-Active Star Formation
Bookmark and Share
The Daily Galaxy

Image of the Day: Rare Cosmic Red Blobs --Regions of Hyper-Active Star Formation

27 Feb 2013, 14:51 UTC
Image of the Day: Rare Cosmic Red Blobs --Regions of Hyper-Active Star Formation
(200 words excerpt, click title or image to see full post)

This false-color composite image of the Stephan's Quintet galaxy cluster clearly shows one of the largest shock waves ever seen (the green arc above), produced by one galaxy falling toward another at over a million miles per hour. It is made up of data from NASA's Spitzer Space Telescope and a ground-based telescope in Spain. What makes the Stephan's Quintet of galaxies so fascinating are the rare red blobs found in NGC 7320, the brightest of the group.

These extensive red H II regions have hyper active star formation. Space telescopes have recently provided new insight into the nature of the strange green filament, which is now believed to be a giant intergalactic shock-wave caused as NGC 7318B collides into the center of the group creating a huge shock wave bigger than the Milky Way that spreads throughout the medium between the galaxies, heating some of the gas to temperatures of millions of degrees where they emit X-rays detectable with the NASA Chandra X-ray Observatory.

Image Credit: Gemini Observatory/Travis Rector, University of Alaska Anchorage

Related articles

Largest Spiral Galaxy in the Universe Confirmed --FiveTimes Size of the Milky Way
"Did Life First Appear on Alien Worlds 12-13 Billion ...

Note: All formatting and links have been removed - click title or image to see full article.

Comment on this Post

* :
* :
:
* :
:
* required

Latest Vodcast

Latest Podcast

Most Popular Video

Advertise PTTU

Extrasolar Planets

  • Planetary Systems: 1126
  • Multiple Planet Systems: 466
  • Planets: 1811
more

NASA POD

Astronomy POD

astronomy_pod