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More Images of Abell 17...
 
Stars Without Galaxies
Stars Without Galaxies
ASCA
 
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Sputnik: Traveling Companion
Sputnik: Traveling Comp...
ASCA
October 4, 1957
 
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facet_when_year 1957
SN 1006: Pieces of the Cosmic Ray Puzzle
SN 1006: Pieces of the ...
ASCA
1006
 
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facet_when_year 1006
Explanation: Research balloon flights conducted in 1912 by Austrian physicist Victor Hess revealed that the Earth was constantly bombarded by high energy radiation from space - which came to be called "Cosmic Rays" [ http://flaco.nmsu.edu:80/www/cosmicrays.html ]. "What are Cosmic Rays and where do they come from?" They are now known to be mostly subatomic particles - predominantly protons and electrons - but their origin is a long standing mystery [ http://ast.leeds.ac.uk/haverah/crs.html ]. After almost a century of study, this cosmic puzzle may have been at least partially solved by new X-ray images and spectra [ http://heasarc.gsfc.nasa.gov/docs/learning_center/basic/xray/ xray_information.html ] from the ASCA satellite observatory [ http://heasarc.gsfc.nasa.gov/docs/asca/asca2.html ]. Pieced together to show the region around a star observed to go supernova [ http://antwrp.gsfc.nasa.gov/apod/ap960612.html ] in 1006 AD, the overlapping X-ray snapshots above (seen in false color) reveal the bright rims of the exploded star's still expanding blast wave. These ASCA observations show [ http://heasarc/docs/asca/science/graphics/09sep1996/docs/ snr_cosmic.html ] for the first time that the energy spectrum of the bright regions is like that produced by extremely high energy electrons streaming through a magnetic field at nearly the speed of light. If (as expected) [ http://webhead.com/~sergio/cosmos95/0095.html ] high energy protons are associated with these energetic electrons then supernova remnants like SN 1006 [ http://heasarc.gsfc.nasa.gov/docs/asca/science/science_snr.html ] are sources of Hess' puzzling Cosmic Rays [ http://www.physics.adelaide.edu.au/astrophysics/cr.html ].
Explanation: Research b...<a target="_blank" href="http://flaco.nmsu.edu:80/www/cosmicrays.html"></a><a target="_blank" href="http://ast.leeds.ac.uk/haverah/crs.html"></a><a target="_blank" href="http://heasarc.gsfc.nasa.gov/docs/learning_center/basic/xray/"></a><a target="_blank" href="http://heasarc.gsfc.nasa.gov/docs/asca/asca2.html"></a><a target="_blank" href="http://antwrp.gsfc.nasa.gov/apod/ap960612.html"></a><a target="_blank" href="http://webhead.com/~sergio/cosmos95/0095.html"></a><a target="_blank" href="http://heasarc.gsfc.nasa.gov/docs/asca/science/science_snr.html"></a><a target="_blank" href="http://www.physics.adelaide.edu.au/astrophysics/cr.html"></a>
ASCA
1006
 
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facet_when_year 1006
Tomorrow's picture: Giant Cluster Bends, Breaks Galaxy Images [ http://antwrp.gsfc.nasa.gov/apod/ap970503.html ]
Tomorrow's picture: Gia...<a target="_blank" href="http://antwrp.gsfc.nasa.gov/apod/ap970503.html"></a>
ASCA
 
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50th Anniversary of Sputnik: Traveling Companion
50th Anniversary of Spu...
ASCA
October 4, 1957
 
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facet_when_year 1957
An X-ray Hot Supernova in M81
An X-ray Hot Supernova ...
ASCA
1993
 
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facet_when_year 1993
ASCA X-Ray Observatory
ASCA X-Ray Observatory
ASCA
 
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Stars Without Galaxies
Stars Without Galaxies
ASCA
 
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Ultra-Fast Pulsar
Ultra-Fast Pulsar
ASCA
 
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The Perseus Cluster of Galaxies
The Perseus Cluster of ...
ASCA
 
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Sputnik: Traveling Companion
Sputnik: Traveling Comp...
ASCA
October 4, 1957
 
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facet_when_year 1957
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