Headlines > News > Picture of the Day - Hubble Reveals Previously Unseen Shocks

Picture of the Day - Hubble Reveals Previously Unseen Shocks

Published by Matt on Wed May 12, 2010 2:12 pm via: Hubble ESA
Share
More share options
Tools
Tags

This detailed, Hubble image shows a planetary nebula in the making of a proto-planetary nebula. A dying star (hidden behind dust and gas in the centre of the nebula) has ejected massive amounts of gas. Parts of the gas have reached tremendous velocities of up to one-and-a-half million kilometres per hour.

Hubble Reveals Previously Unseen Shocks. Credit: ESA & Valentin Bujarrabal (Observatorio Astronomico Nacional, Spain)

Hubble Reveals Previously Unseen Shocks. Credit: ESA & Valentin Bujarrabal (Observatorio Astronomico Nacional, Spain)

Shown in blue is light from hydrogen and ionised nitrogen arising from supersonic shocks where the gas stream rams into the surrounding material. The image shows for the first time these complex gas structures which are predicted by theory. The Hubble image was taken shortly before Christmas 2000 with the WFPC2 instrument (Wide Field and Planetary Camera 2) in four different filters. Here, light from 791 nm is displayed in red (exposure time 900 s), 675 nm in green (900 s), while combined light from hydrogen (656 nm) and ionised nitrogen atoms (658 nm) are shown as blue (14, 700 s).

No comments
Start the ball rolling by posting a comment on this article!
Leave a reply
You must be logged in to post a comment.
© 2014 The International Space Fellowship, developed by Gabitasoft Interactive. All Rights Reserved.  Privacy Policy | Terms of Use