Resources
Q & A
Glossary
Acronym Guide
Further Reading
Outside the Site
Google Sky
WWT
Facebook
Youtube
Twitter
Flickr
Pinterest
Multimedia, Etc
Images/Illustrations
Animation & Video
Special Features
Chandra Podcasts
Desktop Images
The Big Chandra Picture
Presentations
Handouts
Screen Savers
Audio
Web Shortcuts
Chandra Blog
RSS Feed
Chronicle
Email Newsletter
News & Noteworthy
Image Use Policy
Questions & Answers
Glossary of Terms
Download Guide
Get Adobe Reader
Q&A: X-ray Astronomy

Q:
Do xrays from distant objects show a redshift that scales with distance similiar to light's? Is Chandra capable of detecting such? Is there any evidence that neutrinos show a redshift?

A:
X-rays detected with Chandra can and do show redshifts just like visible light. See http://chandra.harvard.edu/resources/faq/x-ray/x-ray-10.html

Neutrinos are a different story, we have enough difficulty just detecting them, from places as nearby as the Sun or the Earth's atmosphere. They may experience a redshift (or loss of energy) as they travel through space, resulting either from interactions with other particles (rare but does occur) or from the expansion of space.

A brief description of 3 types of redshift may be found at:
http://www.astro.virginia.edu/~jh8h/glossary/redshift.htm

Back | Index | Next