View Full Version : The origin of magnetars

2005-Jan-28, 06:45 PM
Magnetic mystery solved (http://www.spaceref.com/news/viewpr.html?pid=16011)

Magnetars stars with magnetic fields a thousand million million times stronger than Earth's are formed when some of the biggest stars in the cosmos explode, says a team led by Bryan Gaensler of the Harvard-Smithsonian Center for Astrophysics.

2005-Jan-30, 11:16 PM
I don't see any novelty in this. I've known since a long time that magnetars are neutron stars (I read it somewhere), and neutron stars can only form in supernova explosions!

Edited: Perhaps the novelty is that they form from very big stars? But how big?

2005-Jan-31, 12:25 PM
Scientific American (http://www.sciamdigital.com/browse.cfm?sequencenameCHAR=item2&methodnameCHAR=r esource_getitembrowse&interfacenameCHAR=browse.cfm &ISSUEID_CHAR=AB9F2CB9-ADA7-E562-F463B0CFD31518DE&ARTICLEID_CHAR=AF1AD33E-E3A9-68AE-9B23FA676D83FFA6&sc=I100322) had a detailed article on magnetars in 2003. The recent findings appear to be in line with the 2003 article but I don't have it with me so I'm not sure if the recent report adds anything new.

2005-Jan-31, 05:06 PM
Ugh. The "Popular Science"-style of writing; i.e., "Quantum blackholes and what they can do for your fuel milage".

Magnetars have magnetic fields so strong that, if one were located halfway to the Moon, it could wipe the data from every credit card on Earth.

The might have spiced it up a bit by titling it "The cosmic threat to your credit discovered".