Hot News for Cold Dark Matter
chandra_89 June 11th, 2003
Credit: X-ray: NASA/CXC/UCI/A.Lewis et al. Optical: Pal.Obs. DSS
Abell 2029 is composed of thousands of galaxies (optical image, right) enveloped in a gigantic cloud of hot gas (X-ray image, left), and an amount of dark matter equivalent to more than a hundred trillion Suns. Both the gas and the galaxies are confined to the cluster primarily by the gravity of the dark matter. If this galaxy cluster is a representative sample of the universe, the Chandra observation indicates that 70 to 90 percent of the mass of the universe consists of dark matter - mysterious particles left over from the dense early universe that interact with each other and "normal" matter only through gravity.
Provider: Chandra X-ray Observatory
Image Source: http://chandra.harvard.edu/photo/2003/abell2029/
Curator: Chandra X-ray Observatory, Cambridge, MA, USA
Image Use Policy: http://chandra.harvard.edu/photo/image_use.html
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Image Details
Distance
Position Details
Color Mapping
- ID
- 89
- Subject Category
- C.5.5.3
- Subject Name
- Abell 2029
- Credits
- X-ray: NASA/CXC/UCI/A.Lewis et al. Optical: Pal.Obs. DSS
- Release Date
- 2003-06-11
- Lightyears
- 1e9
- Redshift
- 0.077454
- Reference Url
- http://chandra.harvard.edu/photo/2003/abell2029/
- Type
- Collage
- Image Quality
- Good
- Distance Notes
- Facility
- Chandra, DSS
- Instrument
- ACIS, UKST Red
- Color Assignment
- Pseudocolor, Yellow
- Band
- X-ray, Optical
- Bandpass
- X-ray, R-band
- Central Wavelength
- 0.8267, 610
- Start Time
- 2000-04-12T06:38:56, 1994-06-01T06:50:00
- Integration Time
- 20070, 3900
- Dataset ID
- Notes
- Coordinate Frame
- ICRS
- Equinox
- J2000
- Reference Value
- 227.744583, 5.761700
- Reference Dimension
- Reference Pixel
- Scale
- Rotation
- Coordinate System Projection:
- TAN
- Quality
- Position
- 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
- 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 Center
- Publisher ID
- chandra
- Resource ID
- abell2029_comp.tif
- Resource URL
- http://chandra.harvard.edu/photo/2003/abell2029/abell2029_comp.tif
- Related Resources
- Metadata Date
- 2012-08-22T13:23:12-04:00
- Metadata Version
- 1.2
Detailed color mapping information coming soon...
