SELF-TRAPPING OF DISKOSEISMIC CORRUGATION MODES IN NEUTRON STAR SPACETIMES

David Tsang, George Pappas

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We examine the effects of higher-order multipole contributions of rotating neutron star (NS) spacetimes on the propagation of corrugation (c-)modes within a thin accretion disk. We find that the Lense-Thirring precession frequency, which determines the propagation region of the low-frequency fundamental corrugation modes, can experience a turnover allowing for c-modes to become self-trapped for sufficiently high dimensionless spin j and quadrupole rotational deformability α. If such self-trapping c-modes can be detected, e.g., through phase-resolved spectroscopy of the iron line for a high-spin low-mass accreting neutron star, this could potentially constrain the spin-induced NS quadrupole and the NS equation of state.
Original languageEnglish
Article numberL11
JournalAstrophysical Journal Letters
Volume818
Issue number1
DOIs
Publication statusPublished - Feb 2016

Fingerprint Dive into the research topics of 'SELF-TRAPPING OF DISKOSEISMIC CORRUGATION MODES IN NEUTRON STAR SPACETIMES'. Together they form a unique fingerprint.

  • Cite this