Share

News Release Archive:

News Release 173 of 966

May 25, 2011 02:00 PM (EDT)

News Release Number: STScI-2011-16

NASA's Hubble Finds Rare Blue Straggler Stars in the Milky Way's Hub

Back

Image: Blue Straggler Formation

Blue Straggler FormationSTScI-PRC2011-16b Artist's Concept

Screen-use options: These files are created for viewing on your monitor

Print-use download options: These files are designed to fit on letter-size paper

Highest-quality download options: The best resolution available


ABOUT THIS IMAGE:

This is an artist's concept of a close binary pair of stars that are merging to form a blue-straggler-class star. Blue stragglers are so named because they seem to be lagging behind in their rate of aging compared with the population from which they formed. The merger stirs up hydrogen fuel and causes the resulting more massive star to undergo nuclear fusion at a faster rate, causing it to burn hotter and bluer. Probing the star-filled, ancient hub of our Milky Way, the Hubble Space Telescope has found blue stragglers for the first time within our galaxy's bulge.

Image Type: Artwork

Artwork Credit: NASA, ESA, and G. Bacon (STScI)

Science Credit: NASA, ESA, W. Clark (Indiana University and UCLA), and K. Sahu (STScI)

NEWS RELEASE IMAGES

All images from this news release:

To access available information and downloadable versions of images in this news release, click on any of the images below: