Pandora's Cluster Revealed
chandra_485 June 22nd, 2011
Credit: X-ray: NASA/CXC/ITA/INAF/J.Merten et al, Lensing: NASA/STScI; NAOJ/Subaru; ESO/VLT, Optical: NASA/STScI/R.Dupke
This composite image features one of the most complicated and dramatic collisions between galaxy clusters ever seen. Known officially as Abell 2744, this system has been dubbed Pandora's Cluster because of the wide variety of different structures found. Data from Chandra (red) show gas with temperatures of millions of degrees. In blue is a map showing the total mass concentration (mostly dark matter) based on data from the Hubble Space Telescope, the Very Large Telescope (VLT), and the Subaru telescope. Optical data from HST and VLT also show the constituent galaxies of the clusters. Astronomers think at least four galaxy clusters coming from a variety of directions are involved with this collision.
Provider: Chandra X-ray Observatory
Image Source: http://chandra.harvard.edu/photo/2011/a2744/
Curator: Chandra X-ray Observatory, Cambridge, MA, USA
Image Use Policy: http://chandra.harvard.edu/photo/image_use.html
-
View Options
Download Options
-
Full Size Image
(3600 x 3600)
JPG (1.96 MB) Source File
Image Details
Distance
Position Details
Color Mapping
| Telescope | Spectral Band | Wavelength | |
|---|---|---|---|
|
Hubble (ACS) | Optical (I-band) | 814.0 nm |
|
Hubble (ACS) | Optical (V-band) | 606.0 nm |
|
Hubble (ACS) | Optical (B-band) | 435.0 nm |
|
|
VLT (FORS1) | Optical (I-band) | 768.0 nm |
|
|
VLT (FORS1) | Optical (R-band) | 657.0 nm |
|
|
VLT (FORS1) | Optical (V-band) | 554.0 nm |
|
|
Chandra (ACIS) | X-ray (X-ray) | 826.7 pm |
- ID
- 485
- Subject Category
- D.5.1.8 D.5.5.3
- Subject Name
- Abell 2744
- Credits
- X-ray: NASA/CXC/ITA/INAF/J.Merten et al, Lensing: NASA/STScI; NAOJ/Subaru; ESO/VLT, Optical: NASA/STScI/R.Dupke
- Release Date
- 2011-06-22
- Lightyears
- 3,500,000,000
- Redshift
- 0.308
- Reference Url
- http://chandra.harvard.edu/photo/2011/a2744/
- Type
- Observation
- Image Quality
- Good
- Distance Notes
- Facility
- HST, HST, HST, VLT, VLT, VLT, Chandra
- Instrument
- ACS, ACS, ACS, FORS1, FORS1, FORS1, ACIS
- Color Assignment
- Red, Green, Blue, Red, Green, Blue, Red
- Band
- Optical, Optical, Optical, Optical, Optical, Optical, X-ray
- Bandpass
- I-band, V-band, B-band, I-band, R-band, V-band, X-ray
- Central Wavelength
- 814, 606, 435, 768, 657, 554, 0.8267
- Start Time
- Integration Time
- Dataset ID
- Notes
- Coordinate Frame
- ICRS
- Equinox
- J2000
- Reference Value
- 3.5855485, -30.3998433
- Reference Dimension
- 3600.0, 3600.0
- Reference Pixel
- 1801.0, 1801.0
- Scale
- 3.10991e-05, 3.1099096e-05
- Rotation
- -0.05
- 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
- 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
- a2744.tif
- Resource URL
- http://chandra.harvard.edu/photo/2011/a2744/a2744.tif
- Related Resources
- Metadata Date
- 2011-06-21T20:34:35-04:00
- Metadata Version
- 1.2
Detailed color mapping information coming soon...
