Magnetar (-aris, n., portmanteau ab Anglico magnet + star, stella magnetica), est stella neutronica extremo campo magnetico (ab ∼109 T usque ~1011 T). Ante mensem Iulium anni 2021, viginti quattuor magnetaria nota sunt.

In hac rara imagine est magnetar Swift J1818.0–1607 (violaceum), quod iuvenissimum? astronomi putant (circa 500 annis in Telluris tempore). Est etiam velocissimum adhuc inventum (rotatio circa quaterdeciens in temporis decasecundo iterat, vel 1.4 Hz).
SGR 1900+14 est mollis radiationis gamma iteratrum quo astronomi latēre magnetar putant.

Historia

recensere

Exsistentia magnetarium a Ruperto Duncan ac Christophoro Thomson anno 1992 proposita est ad mollis radiationis gamma iteratra claranda.[1][2] Quae coniectura sequentibus annis recepta est, et extenta ad pulsaria enormium radiorum Roentgenianorum explicanda.

Nexus interni

  1. Duncan, Robert C.; Thompson, Christopher (1992). "Formation of Very Strongly Magnetized Neutron Stars: Implications for Gamma-Ray Bursts". Astrophysical Journal Letters 392: L9 .
  2. Thompson, Christopher; Duncan, Robert C. (Iulius 1995). "The soft gamma repeaters as very strongly magnetized neutron stars - I. radiative mechanisms for outbursts". Monthly Notices of the Royal Astronomical Society 275 (2): 255–300 .