Chandra Independently Determines Hubble Constant

Chandra_329_1024

chandra_329 August 8th, 2006

Credit: NASA/CXC/MSFC/M.Bonamente et al.

These six galaxy clusters are a subset of the 38 that scientists observed with Chandra ranging in distance from 1.4 to 9.3 billion light years from Earth. Astronomers studied these clusters to help determine the Hubble constant, a number that sets the expansion rate of the Universe. Both Chandra and radio observations were used to trace where photons in the cosmic microwave background interact with electrons in the hot gas that pervades the enormous galaxy clusters. These data find a Hubble constant that agrees with values determined by other techniques and fixes the age of the Universe between 12 and 14 billion years.

Provider: Chandra X-ray Observatory

Image Source: http://chandra.harvard.edu/photo/2006/clusters/

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

Image Type
Observation
Object Name
CL 0016+1609
Subject - Local Universe
Galaxy > Grouping > Cluster

Position Details

Position (ICRS)
RA = 0h 18m 33.9s
DEC = 16° 26’ 7.7”
Constellation
Pisces

Color Mapping

  Telescope Spectral Band Wavelength
Purple Chandra (ACIS) X-ray (X-ray) 826.7 pm
Spectrum_xray1
Purple
Chandra_329_1280
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ID
329
Subject Category
C.5.5.3  
Subject Name
CL 0016+1609
Credits
NASA/CXC/MSFC/M.Bonamente et al.
Release Date
2006-08-08
Lightyears
Redshift
Reference Url
http://chandra.harvard.edu/photo/2006/clusters/
Type
Observation
Image Quality
Good
Distance Notes
Facility
Chandra
Instrument
ACIS
Color Assignment
Purple
Band
X-ray
Bandpass
X-ray
Central Wavelength
0.8267
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
4.641088, 16.435486
Reference Dimension
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
Position
FITS Header
Notes
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 Observatory Center
Publisher ID
chandra
Resource ID
clusters.tif
Metadata Date
2013-09-20T11:11:21-04:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.

 

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