Images by Date
Images by Category
Solar System
Stars
Exoplanets
White Dwarfs
Supernovas
Neutron Stars
Black Holes
Milky Way Galaxy
Normal Galaxies
Quasars
Galaxy Clusters
Cosmology/Deep Field
Miscellaneous
Images by Interest
Space Scoop for Kids
4K JPG
Multiwavelength
Sky Map
Constellations
Photo Blog
Top Rated Images
Image Handouts
Desktops
Fits Files
Visual descriptions
Image Tutorials
Photo Album Tutorial
False Color
Cosmic Distance
Look-Back Time
Scale & Distance
Angular Measurement
Images & Processing
AVM/Metadata
Image Use Policy
Web Shortcuts
Chandra Blog
RSS Feed
Chronicle
Email Newsletter
News & Noteworthy
Image Use Policy
Questions & Answers
Glossary of Terms
Download Guide
Get Adobe Reader
More Information
Normal Galaxies & Starburst Galaxies
Milky Way Galaxy
X-ray Astronomy Field Guide: Milky Way Galaxy
Questions and Answers: Milky Way Galaxy
Chandra Images: Milky Way Galaxy
Related Podcasts
Tour: NASA's Chandra Finds Galaxy Cluster That Crosses the Streams
Download Image

More Information
Handout
Handout: html | pdf

More Images
Galactic Center Radio
Arc X-ray/Millimeter
Wavelength Side by Side
(Credit: X-ray (blue): NASA/CXC/Northwestern/
F.Zadeh et al.; Millimeter Wavelength (green): Nobeyama/M.Tsuboi)


Related Images
Galactic Center Radio Arc:
X-ray Gas Associated With Galactic Center Radio Arc


Galactic Center Radio Arc
Credit: X-ray (blue): NASA/CXC/Northwestern/F.Zadeh et al.; Millimeter Wavelength (green): Nobeyama/M.Tsuboi; Radio (red): NRAO/VLA F.Zadeh et al.

Chandra observations of a region of the Galactic Center have found an X-ray filament and cloud about 40 light years across (blue). These X-ray features are associated with a huge cloud of cold gas (dark area in inset box) that is adjacent to large filamentary and shell-like structures that are bright sources of radio waves (red).

The X-ray emission is thought to be produced when energetic electrons from the radio filaments collide with the cold gas cloud, which has a mass one million times the mass of the Sun. This process of the bombardment of cold gas clouds with energetic electrons could explain the origin of the mysterious X-ray ridge along the plane of the galaxy that was discovered nearly 30 years ago.

Fast Facts for Galactic Center Radio Arc:
Credit  X-ray (blue): NASA/CXC/Northwestern/F.Zadeh et al.; Millimeter Wavelength (green): Nobeyama/M.Tsuboi; Radio (red): NRAO/VLA F.Zadeh et al.
Scale  X-ray/Molecular image is 8 x 7 arcmin. Radio image is 30 arcmin on a side.
Category  Normal Galaxies & Starburst Galaxies, Milky Way Galaxy
Coordinates (J2000)  RA 17h 46m 20s | Dec -28° 52´ 00.01"
Constellation  Sagittarius
Observation Dates  July 7, 2000
Observation Time  14 hours
Obs. IDs  945
Color Code  Intensity
Instrument  ACIS
Distance Estimate  About 26,000 light years
Release Date  January 09, 2002