Abell 1689: A Galaxy Cluster Makes Its Mark

Chandra_403_1024

chandra_403 September 11th, 2008

Credit: X-ray: NASA/CXC/MIT/E.-H Peng et

This image of Abell 1689 is a composite of data from the Chandra X-ray Observatory (purple) and the Hubble Space Telescope (yellow). Abell 1689 is a massive cluster of galaxies that shows signs of merging activity. The long arcs in the optical image, the largest system of such arcs ever found, are caused by gravitational lensing of the background galaxies by matter in the galaxy cluster. Further studies of this cluster are needed to explain the lack of agreement between mass estimates based on the X-ray data and on the gravitational lensing.

Provider: Chandra X-ray Observatory

Image Source: http://chandra.harvard.edu/photo/2008/a1689/

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
Abell 1689
Subject - Distant Universe
Galaxy > Type > Gravitationally Lensed
Galaxy > Grouping > Cluster

Distance

Universescale3
2,200,000,000 light years
Chandra_403_128
 

Position Details

Position (ICRS)
RA = 13h 11m 30.1s
DEC = -1° 20’ 18.3”
Orientation
North is 115.3° CW
Field of View
1.6 x 1.7 arcminutes
Constellation
Virgo

Color Mapping

  Telescope Spectral Band Wavelength
Purple Chandra (ACIS) X-ray 826.7 pm
Red Hubble (ACS) Optical (z-band) 850.0 nm
Green Hubble (ACS) Optical (r-band) 625.0 nm
Blue Hubble (ACS) Optical (g-band) 475.0 nm
Spectrum_xray1
Purple
Red
Green
Blue
Chandra_403_1280
×
ID
403
Subject Category
D.5.1.8   D.5.5.3  
Subject Name
Abell 1689
Credits
X-ray: NASA/CXC/MIT/E.-H Peng et
Release Date
2008-09-11
Lightyears
2,200,000,000
Redshift
0.18
Reference Url
http://chandra.harvard.edu/photo/2008/a1689/
Type
Observation
Image Quality
Good
Distance Notes
Facility
Chandra, Hubble, Hubble, Hubble
Instrument
ACIS, ACS, ACS, ACS
Color Assignment
Purple, Red, Green, Blue
Band
X-ray, Optical, Optical, Optical
Bandpass
-, z-band, r-band, g-band
Central Wavelength
0.8267, 850, 625, 475
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
2000.0
Reference Value
197.87531652500, -1.33842511083
Reference Dimension
3846.00, 3996.00
Reference Pixel
-1947.00243947661, 589.65521274632
Scale
-0.00000698384, 0.00000698384
Rotation
-115.25228438497
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
World Coordinate System resolved using PinpointWCS 0.9.0 revision 213+ by the Chandra X-ray Center
Creator (Curator)
Chandra X-ray Observatory
URL
http://chandra.si.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
Publisher ID
chandra
Resource ID
a1689.tif
Metadata Date
2024-02-02T16:31:35-05:00
Metadata Version
1.2
×

 

Detailed color mapping information coming soon...

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Universescalefull
2,200,000,000 light years

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