Chandra Turns Up the Heat in the Milky Way Center

Chandra_221_1024

chandra_221 June 13th, 2004

Credit: NASA/CXC/UCLA/MIT/M.Muno et al.

This X-ray image was produced by combining a dozen Chandra observations made of the central region of the Milky Way. The colors represent low (red), medium (green) and high (blue) energy X-rays. Chandra's unique resolving power has allowed astronomers to identify thousands of point-like X-ray sources due to neutron stars, black holes, white dwarfs, foreground stars, and background galaxies. What remains is a diffuse X-ray glow extending from the upper left to the lower right, along the direction of the disk of the Galaxy. The Chandra data indicate that the diffuse glow is a mixture of 10-million-degree Celsius gas and 100-million-degree gas. Shock waves from supernova explosions are the most likely explanation for heating the 10-million degree gas, but how the 100-million-degree gas is heated is a mystery.

Image Source: http://chandra.harvard.edu/photo/2004/sgra/

Curator: Chandra X-ray Observatory, Cambridge, MA, USA

Image Use Policy: http://chandra.harvard.edu/photo/image_use.html

Image Details

Image Type
Observation
Object Name
Sagittarius A*
Subject - Milky Way
Star > Evolutionary Stage > Black Hole
Galaxy > Component > Central Black Hole

Distance

Universescale1
26,000 light years
Chandra_221_128
 

Position Details

Position (ICRS)
RA = 17h 45m 43.7s
DEC = -29° 0’ 3.4”
Orientation
North is 15.4° CW
Field of View
16.1 x 16.1 arcminutes
Constellation
Sagittarius

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_red Chandra (ACIS) X-ray 992.0 pm
Arrow_left_green Chandra (ACIS) X-ray 413.0 pm
Arrow_left_blue Chandra (ACIS) X-ray 207.0 pm
Spectrum_xray1
Arrow_top_red
Arrow_top_green
Arrow_top_blue
Chandra_221_1280
×
ID
221
Subject Category
B.3.1.10   B.5.4.6  
Subject Name
Sagittarius A*
Credits
NASA/CXC/UCLA/MIT/M.Muno et al.
Release Date
2004-06-13
Lightyears
26,000
Redshift
26,000
Reference Url
http://chandra.harvard.edu/photo/2004/sgra/
Type
Observation
Image Quality
Good
Distance Notes
Facility
Chandra, Chandra, Chandra
Instrument
ACIS, ACIS, ACIS
Color Assignment
Red, Green, Blue
Band
X-ray, X-ray, X-ray
Bandpass
Central Wavelength
0.992, 0.413, 0.207
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
266.4322364, -29.0009351
Reference Dimension
2400.0, 2400.0
Reference Pixel
1201.0, 1201.0
Scale
0.000111906, 0.00011190567
Rotation
-15.44
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
WCS retrieved using CXCs PinpointWCS
Creator (Curator)
Chandra X-ray Observatory
URL
http://chandra.harvard.edu
Name
Chandra X-ray Observatory Center
Email
cxcpub@cfa.harvard.edu
Telephone
617.496.7941
Address
60 Garden St.
City
Cambridge
State/Province
MA
Postal Code
02138
Country
USA
Rights
http://chandra.harvard.edu/photo/image_use.html
Publisher
Chandra X-ray Observatory Center
Publisher ID
chandra
Resource ID
sgra_xray.tif
Metadata Date
2012-03-22T11:54:10-04:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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Universescalefull
26,000 light years