In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 47, no. 2
V. Karas - O. Kopáček - D. Kunneriath - M. Zajaček - A. Araudo - A. Eckart - J. Kovář
Detaily:
Rok, strany: 2017, 124 - 132
Kľúčové slová:
Magnetic fields, Neutron stars, Galactic centre
URL originálneho zdroja: http://www.astro.sk/caosp/Eedition/Abstracts/2017/Vol_47/No_2/pp124-132_abstract.html
O článku:
Black holes cannot support their own internal magnetic field like,
for example, compact stars can. Despite this fact observations indicate that
event horizons of supermassive black holes (SMBH) are threaded by field
lines along which plasma streams flow. Various magnetohydrodynamical
mechanisms have been suggested to generate turbulent magnetic fields on
small scales, however, the origin of the large-scale component is unclear.
In this write-up we describe our progress in an on-going work and discuss
the possibility of dipole-type magnetic fields being brought onto SMBH by
magnetised neutron stars, which are expected to drift inward from a hidden
population in the Nuclear Star Cluster. This can contribute to an organised
component of the magnetic field on the characteristic length-scale of the
stellar size, which thread the horizon during the final stages of the
magnetized star plunge into or its close flyby around SMBH. Because of
mass—size scaling relations for black holes, the effect is more important
for lower-mass SMBH.
Ako citovať:
ISO 690:
Karas, V., Kopáček, O., Kunneriath, D., Zajaček, M., Araudo, A., Eckart, A., Kovář, J. 2017. Plunging neutron stars as origin of organised magnetic field in galactic nuclei. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 47, no.2, pp. 124-132. 1335-1842.
APA:
Karas, V., Kopáček, O., Kunneriath, D., Zajaček, M., Araudo, A., Eckart, A., Kovář, J. (2017). Plunging neutron stars as origin of organised magnetic field in galactic nuclei. Contributions of the Astronomical Observatory Skalnaté Pleso, 47(2), 124-132. 1335-1842.