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Title: Gravitational radiation from magnetically funneled supernova fallback onto a magnetar

Protomagnetars spun up to millisecond rotation periods by supernova fallback are predicted to radiate gravitational waves via hydrodynamic instabilities for ∼10{sup 2} s before possibly collapsing to form a black hole. It is shown that magnetic funneling of the accretion flow (1) creates a magnetically confined polar mountain, which boosts the gravitational wave signal, and (2) 'buries' the magnetic dipole moment, delaying the propeller phase and assisting black hole formation.
Authors:
;  [1]
  1. School of Physics, University of Melbourne, Parkville, VIC 3010 (Australia)
Publication Date:
OSTI Identifier:
22370372
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 794; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BLACK HOLES; GRAVITATIONAL RADIATION; GRAVITATIONAL WAVES; INSTABILITY; MAGNETIC DIPOLE MOMENTS; MAGNETIC FIELDS; NEUTRON STARS; NEUTRONS; PROTOSTARS; ROTATION; SUPERNOVAE