Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
Magnetar
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
====Origins of magnetic fields==== The dominant model of the strong fields of magnetars is that it results from a [[magnetohydrodynamic dynamo]] process in the turbulent, extremely dense conducting fluid that exists before the neutron star settles into its equilibrium configuration.<ref>{{Cite journal |last1=Thompson |first1=Christopher |last2=Duncan |first2=Robert C. |date=1993 |title=Neutron Star Dynamos and the Origins of Pulsar Magnetism |url=https://articles.adsabs.harvard.edu/pdf/1993ApJ...408..194T |journal=Astrophysical Journal |volume=408 |pages=194β217 |doi=10.1086/172580 |bibcode=1993ApJ...408..194T |via=NASA Astrophysics Data System |doi-access= }}</ref> These fields then persist due to persistent currents in a proton-superconductor phase of matter that exists at an intermediate depth within the neutron star (where neutrons predominate by mass). A similar magnetohydrodynamic dynamo process produces even more intense transient fields during [[Neutron star merger|coalescence of a pair of neutron stars]].<ref>{{Cite journal |last1 = Price |first1 = Daniel J. |last2 = Rosswog |first2 = Stephan |title = Producing Ultrastrong Magnetic Fields in Neutron Star Mergers |doi = 10.1126/science.1125201 |journal = Science |volume = 312 |issue = 5774 |pages = 719β722 |date = May 2006 |pmid = 16574823 |arxiv = astro-ph/0603845 |url = http://users.monash.edu.au/~dprice/research/nsmag/ |bibcode = 2006Sci...312..719P |s2cid = 30023248 |access-date = 2012-07-13 |archive-date = 2018-07-17 |archive-url = https://web.archive.org/web/20180717141702/http://users.monash.edu.au/~dprice/research/nsmag/ |url-status = dead }} {{open access}}</ref> An alternative model is that they simply result from the collapse of stars with unusually strong magnetic fields.<ref>{{Cite journal | last1 = Zhou | first1 = Ping | last2 = Vink | first2 = Jacco | last3 = Safi-Harb | first3 = Samar | last4 = Miceli | first4 = Marco | title = Spatially resolved X-ray study of supernova remnants that host magnetars: Implication of their fossil field origin | doi = 10.1051/0004-6361/201936002 | journal = Astronomy & Astrophysics | volume = 629 | issue = A51 | pages = 12 | date = September 2019 | arxiv = 1909.01922 | bibcode = 2019A&A...629A..51Z | s2cid = 201252025 }} {{open access}}</ref>
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)