The Crab in Action & The Case of The Dog That Did Not Bark

Chandra_482_1024

chandra_482 May 11th, 2011

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

This image represents a sequence of Chandra observations of the Crab Nebula taken from September 2010 through April 2011. During this period, dramatic variations are seen in the Crab, including the expansion of a ring of X-ray emission around the pulsar (white dot near the center) and changes in the knots within this ring. These variations, however, did not correlate with strong gamma-ray flares seen by the Fermi Gamma Ray Observatory and Italy's AGILE satellite during that period.

Provider: Chandra X-ray Observatory

Image Source: http://chandra.harvard.edu/photo/2011/crab/

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 Details

Image Type
Observation
Object Name
Crab Nebula
Subject - Milky Way
Nebula > Type > Supernova Remnant
Star > Evolutionary Stage > Neutron Star > Pulsar

Distance Details Distance

Universescale1
6,500 light years
Chandra_482_128
 

Position Details Position Details

Position (ICRS)
RA = 5h 34m 32.3s
DEC = 22° 0’ 47.5”
Orientation
North is 2.5° CW
Field of View
3.0 x 3.0 arcminutes
Constellation
Taurus

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Chandra (ACIS) X-ray (X-ray) 826.7 pm
Spectrum_xray1
Blue
Chandra_482_1280
×
ID
482
Subject Category
B.4.1.4   B.3.1.9.1  
Subject Name
Crab Nebula
Credits
NASA/CXC/MSFC/M.Weisskopf et al
Release Date
2011-05-11
Lightyears
6,500
Redshift
6,500
Reference Url
http://chandra.harvard.edu/photo/2011/crab/
Type
Observation
Image Quality
Good
Distance Notes
Facility
Chandra
Instrument
ACIS
Color Assignment
Blue
Band
X-ray
Bandpass
X-ray
Central Wavelength
0.8267
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
83.6346004, 22.0131890
Reference Dimension
864.0, 864.0
Reference Pixel
433.0, 433.0
Scale
5.71534e-05, 5.7153393e-05
Rotation
-2.48
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
crab.tif
Resource URL
http://chandra.harvard.edu/photo/2011/crab/crab.tif
Related Resources
Metadata Date
2011-05-18T16:40:06-04:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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Universescalefull
6,500 light years

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NASA’s Universe of Learning materials are based upon work supported by NASA under cooperative agreement award number NNX16AC65A to the Space Telescope Science Institute, working in partnership with Caltech/IPAC, Center for Astrophysics | Harvard & Smithsonian, and NASA Jet Propulsion Laboratory. The award is part of NASA’s Science Activation program, which strives to further enable NASA science experts and content into the learning environment more effectively and efficiently with learners of all ages.