Chandra Resolves Cosmic X-Ray Glow and Finds Mysterious New Sources

Chandra_220_1024

chandra_220 January 13th, 2000

Credit: NASA/GSFC (Mushotzky et al.)

This Chandra X-ray Observatory image of a 27.7 hour observation of a region in the direction of the constellation Canes Venatici, close to the Big Dipper, shows about 3 dozen X-ray sources. Some of the sources are optically too faint to be seen by telescopes such as the Hubble Space Telescope and the Keck 10 meter telescope in Hawaii and so are only known through this Chandra observation. This new class of sources may represent some of the most distant objects ever detected. If this sample of the sky is typical, tens of millions of such sources must exist.

Provider: Chandra X-ray Observatory

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

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
Deep Field in Canes Venatici
Chandra_220_128
 

Position Details

Position (ICRS)
RA = 13h 12m 23.8s
DEC = 42° 41’ 40.9”
Orientation
North is 2.1° CCW
Field of View
13.2 x 13.2 arcminutes
Constellation
Canes Venatici

Color Mapping

  Telescope Spectral Band Wavelength
Grayscale Chandra (ACIS) X-ray (X-ray) 826.7 pm
DatasetID is the Chandra Observation ID
Spectrum_xray1
Grayscale
Chandra_220_1280
×
ID
220
Subject Category
Subject Name
Deep Field in Canes Venatici
Credits
NASA/GSFC (Mushotzky et al.)
Release Date
2000-01-13
Lightyears
Redshift
Reference Url
http://chandra.harvard.edu/photo/2000/bg/
Type
Observation
Image Quality
Good
Distance Notes
Facility
Chandra
Instrument
ACIS
Color Assignment
Grayscale
Band
X-ray
Bandpass
X-ray
Central Wavelength
0.8267
Start Time
1999-12-03T07:05:07
Integration Time
100000
Dataset ID
325
Notes
D
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
198.0993320, 42.6947030
Reference Dimension
2400.0, 2386.0
Reference Pixel
1201.0, 1194.0
Scale
9.19373e-05, 9.1937349e-05
Rotation
2.05
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
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
bg_xray.tif
Metadata Date
2011-02-09
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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