Of Mountains and Molehills : Gravitational Waves from Neutron Stars
Sushan Konar, Dipanjan Mukherjee, Dipankar Bhattacharya, Prakash, Sarkar
TL;DR
This paper investigates gravitational wave emissions from neutron stars with surface asymmetries, suggesting that rapidly rotating, magnetized neutron stars in HMXBs could be promising targets for future gravitational wave detection.
Contribution
It analyzes the quadrupole moments of accreting neutron stars and identifies specific conditions under which their gravitational waves might be detectable with next-generation detectors.
Findings
Gravitational wave amplitudes from surface asymmetries are currently undetectable.
Rapidly rotating, magnetized neutron stars in HMXBs are promising candidates for future detection.
Surface asymmetries contribute significantly to neutron star quadrupole moments.
Abstract
Surface asymmetries of accreting neutron stars are investigated for their mass quadrupole moment content. Though the amplitude of the gravitational waves from such asymmetries seem to be beyond the limit of detectability of the present generation of detectors, it appears that rapidly rotating neutron stars with strong magnetic fields residing in HMXBs would be worth considering for targeted search for continuous gravitational waves with the next generation of instruments.
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