Magnetar images and drawings

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Magnetar birthday album
Each of these images links to a 1280x1024-pixel JPG ranging in size from 168K to 522K bytes. Use and distribution of these images is encouraged. Please credit: NASA/Marshall Space Flight Center and, where indicated, additional sources as noted in each caption. The 1280x1024 format was set for a Focus Imagecorder Plus. Some images are available in larger formats, or (in the cases of the graphs, neutron star cross-sections, and orbital plot) as Illustrator files. For additional information, contact Dave Dooling. Return to the Magnetar birthday story.
March 16, 1999: Fixed small errors in slides marked *. Added pictures at bottom of Dr. Chryssa Kouvelitou.


Location of SGR
1627-41 in the galactic plane. The Milky Way is depicted through
the Diffuse Infrared Background Experiment carried by the Cosmic
Background Explorer.
The locations of
known magnetar candidates - Soft Gamma-ray Repeaters and Anomalous
X-ray Pulsars - in the Milky Way.
The presumed location
of SGR 1627-41 as "boxed in" by observations with the
Burst and Transient Source Experiment, the Rossi X-ray Timing
Explorer (RXTE), and the Interplanetary Network (IPN).


SGR 1900+14 as seen
by Japan's Advnaced Satellite for Cosmology and Astrophysics.
SGR 1900+14 as seen
by the Italian-Dutch Beppo SAX small astronomy satellite before
and after the August 1998 burst event.
A different view
from Beppo SAX of SGR 1900+14.


The steps in making
an neutron star (including magnetars): A massive star explodes,
blowing off the shell and compressing the core. *
Even though film
was not used, it makes a great metaphor for a sequence of images
depicting an SGR/magnetar outburst. Credit: Dr. Robert Mallozzi,
University of Alabama in Huntsville and NASA/Marshall.
The geometry of
a pulsar and its magnetosphere.


Cross-sectional
diagram of a neutron star depicting its crust and liquid interior.
Cross-sectional
diagram, with simpler labels, of a neutron star depicting its
crust and liquid interior.
Cross-sectional
diagram of a magnetar in the first seconds of life after a supernova.


This complex graph
shows the major SGR outbursts since 1979, and the periods when
satellites were observing (top).
Another complex
graph shows the separate burst histories of the four SGRs along
the same time line.
The life cycle of
magnetars showing rotational period (top), burst activity (middle),
and life phases (bottom). The rotation and burst charts are qualitative
since no models are mature enough to assign values.


The pulsar rotational
period stands out clearly in this plot of the August 1998 event
as recorded by the burst detector on the Ulysses probe. Credit:
Kevin Hurley, University of California at Berkeley, and NASA/Marshall.
Relative locations
in the solar system of spacecraft that detected the August 1998
SGR event. *
Major observatories
used in observing magnetars and other energetic objects. (Note:
Chandra, far right, is set for launch in summer 1999.)

A qualitative depiction
of the electromagnetic spectrum shows where gamma rays fit relative
to what the human eye can see.
Artist's concept
depicts afront of gamma radiation from a burst sweeping over
the Earth and the Compton Gamma Ray Observatory. Credit: Dr.
Robert Mallozzi, University of Alabama in Huntsville and NASA/Marshall.
Also available is 2,048x1,536-pixel,
356K JPG.
(deliberately left
blank)
