A Cooling Flow In Galaxy Cluster Abell 1795

Chandra_185_1024

chandra_185 December 4th, 2000

Credit: NASA/IoA/AC Fabian et al.

Chandra has found a "cool" filament of gas in the galaxy cluster Abell 1795. This structure is some 200,000 light years long (the long string-like feature in the middle of this image). The gas in the filament has a temperature of about 30 million degrees Celsius, cooler than the surrounding gas in the cluster. As the gas in the cluster core radiates away its energy, it drifts toward regions where gravity is strongest. The enormous elliptical galaxy located at the head of the filament could have pulled the gas inward into its wake as it passed through the core of the cluster and created the filament.

Provider: Chandra X-ray Observatory

Image Source: http://chandra.harvard.edu/photo/2000/0163/

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 1795

Distance

Universescale3
847,600,000 light years
Chandra_185_128
 

Position Details

Position (ICRS)
RA = 13h 48m 52.8s
DEC = 26° 35’ 16.2”
Orientation
North is 1.8° CW
Field of View
0.9 x 0.9 arcminutes
Constellation
Bootes

Color Mapping

  Telescope Spectral Band Wavelength
Red Chandra (ACIS) X-ray (X-ray) 826.7 pm
Red Chandra (ACIS) X-ray (X-ray) 826.7 pm
Spectrum_xray1
Red
Red
Chandra_185_1280
×
ID
185
Subject Category
Subject Name
Abell 1795
Credits
NASA/IoA/AC Fabian et al.
Release Date
2000-12-04
Lightyears
847,600,000
Redshift
847,600,000
Reference Url
http://chandra.harvard.edu/photo/2000/0163/
Type
Observation
Image Quality
Good
Distance Notes
Facility
Chandra, Chandra
Instrument
ACIS, ACIS
Color Assignment
Red, Red
Band
X-ray, X-ray
Bandpass
X-ray, X-ray
Central Wavelength
0.8267, 0.8267
Start Time
1999-12-20, 2000-03-21
Integration Time
19594, 19421
Dataset ID
493, 494
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
207.2201478, 26.5878436
Reference Dimension
2179.0, 2171.0
Reference Pixel
1090.5, 1086.5
Scale
7.10371e-06, 7.1037063e-06
Rotation
-1.84
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 Center
Publisher ID
chandra
Resource ID
0163_xray.tif
Metadata Date
2010-12-23
Metadata Version
1.2
×

 

Detailed color mapping information coming soon...

×
Universescalefull
847,600,000 light years

Providers | Sign In