J 2018

Massive nonminimally coupled scalar field in Reissner-Nordström spacetime: Long-lived quasinormal modes and instability

KONOPLYA, Roman, Zdeněk STUCHLÍK a Olexandr ZHYDENKO

Základní údaje

Originální název

Massive nonminimally coupled scalar field in Reissner-Nordström spacetime: Long-lived quasinormal modes and instability

Autoři

KONOPLYA, Roman (804 Ukrajina, garant, domácí), Zdeněk STUCHLÍK (203 Česká republika, domácí) a Olexandr ZHYDENKO (804 Ukrajina)

Vydání

Physical Review D, 2018, 2470-0010

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Kód RIV

RIV/47813059:19240/18:A0000242

Organizační jednotka

Filozoficko-přírodovědecká fakulta v Opavě

UT WoS

000451335900009

Klíčová slova anglicky

black holes; quasinormal modes; Reissner-Nordström spacetime

Příznaky

Mezinárodní význam, Recenzováno

Návaznosti

GB14-37086G, projekt VaV.
Změněno: 4. 4. 2019 09:23, RNDr. Jan Hladík, Ph.D.

Anotace

V originále

Here we show that the phenomenon of arbitrarily long-lived quasinormal modes (called quasiresonances) of a massive scalar field in the vicinity of a black hole is not an artifact of the test field approximation, but takes place also when the (derivative) coupling of a scalar field with the Einstein tensor is taken into consideration. We observe that at large coupling and high multipole numbers, the growing modes appear in the spectrum, which are responsible for the eikonal instability of the field. For small coupling, when the configuration is stable, there appear the purely imaginary quasinormal modes which are nonperturbative in the coupling constant. At the sufficiently small coupling the nonminimal scalar field is stable and the asymptotic late-time tails are not affected by the coupling term. The accurate calculations of quasinormal frequencies for a massive scalar field with the derivative coupling in the Reissner-Nordstrom black-hole background are performed with the help of the Frobenius method, time-domain integration and WKB expansion.