An Intergalactic Weather Map
chandra_468 December 8th, 2010
Credit: X-ray: NASA/CXC/SAO/S.Randall et al., Optical: SDSS
This composite image shows an intergalactic "weather map" around the elliptical galaxy NGC 5813. Just like a weather map for Earth, the colored circle depicts variations in temperature across a region. This particular map presents the range of temperature in a region of space as observed by Chandra, with the hotter temperatures shown in red and decreasingly cooler temperatures shown in orange, yellow, green, and blue. Regular outbursts generated by the supermassive black hole at the center of NGC 5813 provide heat, preventing much of the gas near the center of the galaxy from cooling to allow new stars to form.
Provider: Chandra X-ray Observatory
Image Source: http://chandra.harvard.edu/photo/2010/ngc5813/
Curator: Chandra X-ray Observatory, Cambridge, MA, USA
Image Use Policy: http://chandra.harvard.edu/photo/image_use.html
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Full Size Image
(3600 x 3600)
JPG (1.8 MB) Source File
Image Details
Distance
Position Details
Color Mapping
| Telescope | Spectral Band | Wavelength | |
|---|---|---|---|
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SDSS (2.5m) | Optical (I-band) | 748.1 nm |
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SDSS (2.5m) | Optical (R-band) | 616.5 nm |
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SDSS (2.5m) | Optical (G-band) | 468.6 nm |
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Chandra (ACIS) | X-ray (X-ray) | 826.7 pm |
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Chandra (ACIS) | - | - |
| Second Chandra channel represents a temperature map derived from the X-ray data. | |||
- ID
- 468
- Subject Category
- C.5.5.3
- Subject Name
- NGC 5813
- Credits
- X-ray: NASA/CXC/SAO/S.Randall et al., Optical: SDSS
- Release Date
- 2010-12-08
- Lightyears
- 105,000,000
- Redshift
- 105,000,000
- Reference Url
- http://chandra.harvard.edu/photo/2010/ngc5813/
- Type
- Observation
- Image Quality
- Good
- Distance Notes
- Facility
- SDSS, SDSS, SDSS, Chandra, Chandra
- Instrument
- 2.5m, 2.5m, 2.5m, ACIS, ACIS
- Color Assignment
- Yellow, Yellow, Yellow, Blue, Pseudocolor
- Band
- Optical, Optical, Optical, X-ray, -
- Bandpass
- I-band, R-band, G-band, X-ray, -
- Central Wavelength
- 748.1, 616.5, 468.6, 0.8267, -
- Start Time
- Integration Time
- Dataset ID
- Notes
- S
- Coordinate Frame
- ICRS
- Equinox
- J2000
- Reference Value
- 225.2984404, 1.7004883
- Reference Dimension
- 3600.0, 3600.0
- Reference Pixel
- 1801.0, 1801.0
- Scale
- 5.46206e-05, 5.4620572e-05
- Rotation
- -0.01
- 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
- ngc5813.tif
- Resource URL
- http://chandra.harvard.edu/photo/2010/ngc5813/ngc5813.tif
- Related Resources
- Metadata Date
- 2011-12-06T15:40:19-05:00
- Metadata Version
- 1.2
Detailed color mapping information coming soon...
