Gravitational excitation of high frequency QPOs

@article{43224,
   author = {Hledík, Stanislav and Stuchlík, Zdeněk},
   article_location = {FR - Francouzská republika},
   article_number = {3},
   doi = {http://dx.doi.org/10.1051/0004-6361:20077061},
   keywords = {neutron stars, binary systems, QPOs, accretion discs},
   language = {eng},
   issn = {0004-6361},
   journal = {Astronomy & Astrophysics},
   title = {Gravitational excitation of high frequency QPOs},
   volume = {489},
   year = {2008}
}

TY  - JOUR
ID  - 43224
AU  - Hledík, Stanislav - Stuchlík, Zdeněk
PY  - 2008
TI  - Gravitational excitation of high frequency QPOs
JF  - Astronomy & Astrophysics
VL  - 489
IS  - 3
SP  - 963-966
EP  - 963-966
SN  - 00046361
KW  - neutron stars, binary systems, QPOs, accretion discs
N2  - We discuss the possibility that high-frequency QPOs in neutron-star binary systems may result from forced resonant oscillations of matter in the innermost parts of the accretion disc, excited by gravitational perturbations coming from asymmetries of theneutron star or from the companion star. We find that neutron-star asymmetries could, in principle, be effective for inducing both radial and vertical oscillations of relevant amplitude while the binary companion might possibly produce significant radialoscillations but not vertical ones. Misaligned neutron-star quadrupole moments of a size advocated elsewhere for explaining limiting neutron star periods could be large enough also for the present purpose.
ER  - 

HLEDÍK, Stanislav and Zdeněk STUCHLÍK. Gravitational excitation of high frequency QPOs. \textit{Astronomy \&{} Astrophysics}. FR - Francouzská republika, 2008, vol.~489, No~3, p.~963-966. ISSN~0004-6361. Available from: https://dx.doi.org/10.1051/0004-6361:20077061.