A Light Show of Magnetic Proportions

A bursting display of x-rays and gamma-rays have been spotted by NASA’s Swift satellite and Fermi Gamma-ray Space Telescope. Loredana Vetere, who oversees the Swift observations in Penn State, explains, “At times, this remarkable object has erupted with more than 100 flares in as little as 20 minutes.”В  In other words, a lot of very intense activity.

Planet Waves
Gamma-ray flares from SGR J1550-5418 may arise when the magnetar’s surface suddenly cracks, releasing energy stored in its powerful magnetic field. Image courtesy of NASA/Goddard Space Flight Center Conceptual Image Lab.

The object is called a gamma ray repeater, which is a type of magnetar — a neutron star with the most powerful magnetic field in the universe. They are fairly uncommon; thus far, only six have been discovered.

According to galactic astrology specialist Philip Sedgwick, this particular SGR object is located at 8+ Sagittarius, and it’s clustered with several other similar points in Sagittarius and Capricorn.

The soft-gamma-ray repeater, given the catchy name “SGR J1550-5418,” is about 30,000 light-years from Earth. It appears to originate from the constellation Norma, which lies in the path of the Milky Way. The first bursts from SGR J1550-5418 were noted on Oct. 3, 2008. After a quiet patch, the soft-gamma-ray repeater sprung back into action on Jan. 22.

Just over four years ago, on Dec. 27, 2004, the most powerful burst from a soft-gamma-repeater was recorded, which was 50,000 light years away and emitted a burst strong enough to ionize Earth’s upper atmosphere. “Previously, SGR emanations have disrupted satellite and cell phone service,” Sedgwick said.

How and why gamma-ray-repeaters occur is still in the theory stages. What is known is that the observed curved and twisted flares occur due to levels of high magnetic fields. On the Sun, for example, events like solar flares and coronal loops — when the flare forms an arch instead of shooting directly outwards — occur around strong magnetic fields. The gamma-ray and x-ray flares around SGR J1550-5418 behave similarly due to the magnetic activity.

2 thoughts on “A Light Show of Magnetic Proportions”

  1. Hmmmmmm….isn’t that the location of the Moon in the Stimulus Bill chart? Would be nice if we could harness all that energy to use here on earth. Who knows; maybe some day we will.

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