Gravitational waves from the r-modes of rapidly rotating neutron stars

Owen, Benjamin J.
June 2000
AIP Conference Proceedings;2000, Vol. 523 Issue 1, p55
Academic Journal
Since the last Amaldi meeting in 1997 we have learned that the r-modes of rapidly rotating neutron stars are unstable to gravitational radiation reaction in astrophysically realistic conditions. Newborn neutron stars rotating more rapidly than about 100 Hz may spin down to that frequency during up to one year after the supernova that gives them birth, emitting gravitational waves which might be detectable by the enhanced LIGO interferometers at a distance which includes several supernovae per year. A cosmological background of these events may be detectable by advanced LIGO. The spins (about 300 Hz) of neutron stars in low-mass x-ray binaries may also be due to the r-mode instability (under different conditions), and some of these systems in our galaxy may also produce detectable gravitational waves—see the review by G. Ushomirsky in this volume. Much work is in progress on developing our understanding of r-mode astrophysics to refine the early, optimistic estimates of the delectability of the gravitational waves. © 2000 American Institute of Physics.


Related Articles

  • Secular bar-mode evolution and gravitational waves from neutron stars. Lai, Dong // AIP Conference Proceedings;2001, Vol. 575 Issue 1, p246 

    The secular instability and nonlinear evolution of the m = 2 f-mode (bar-mode) driven by gravitational radiation reaction in a rapidly rotating, newly formed neutron star are discussed. There are two types of rotating bars which generate quite different gravitational waveforms: those with large...

  • Gravitational radiation of slowly rotating neutron stars. Sedrakian, D.; Hayrapetyan, M.; Shahabasyan, M. // Astrophysics;Apr2006, Vol. 49 Issue 2, p194 

    The gravitational rotation of slowly rotating neutron stars with rough surfaces is examined. The source of the gravitational waves is assumed to be the energy transferred to the crust of the star during irregular changes in its angular rotation velocity. It is shown that individual pulsars whose...

  • Relativistic r-modes and shear viscosity. Gualtieri, L.; Pons, J. A.; Miralles, J. A.; Ferrari, V. // AIP Conference Proceedings;2006, Vol. 861 Issue 1, p638 

    We derive the relativistic equations for stellar perturbations, including in a consistent way shear viscosity in the stress-energy tensor, and we numerically integrate our equations in the case of large viscosity. We consider the slow rotation approximation, and we neglect the coupling between...

  • Advanced gravitational-wave detectors open their ears. Feder, Toni // Physics Today;Sep2015, Vol. 68 Issue 9, p20 

    The article discusses the second-generation detectors which include Advanced Laser Interferometer Gravitational-Wave Observatory (Advanced LIGO) and Advanced Variability of Solar Irradiance and Gravity Oscillations (Advanced VIRGO) which would attempt to detect and study gravitational waves....

  • A Timing Signature of Gravitational Radiation from LMXB Neutron Stars. Wagoner, Robert V. // AIP Conference Proceedings;2004, Vol. 714 Issue 1, p224 

    The coupled evolution of the spin frequency, core temperature, and r-mode amplitude of an accreting neutron star is calculated. We focus on those conditions that can produce persistent gravitational radiation from the r-mode. During X-ray quiescent phases of transient LMXBs, one may be able to...

  • Gravitational radiation of stellar configurations consisting of incompressible fluid. Sadoyan, A. // Astrophysics;Apr2006, Vol. 49 Issue 2, p211 

    This article discusses the gravitational radiation of rotating and oscillating stellar configurations with an incompressible fluid equation of state. The method used here makes it possible to determine the frequencies and amplitudes of the gravitational waves for arbitrary values of the central...

  • Interferometric characterization of the optical window for LISA Pathfinder and LISA. García Marín, Antonio F.; Bogenstahl, Johanna; Guzmán Cervantes, Felipe; Steier, Frank; Reiche, Jens; Skorupka, Sascha; Wand, Vinzenz; Nofrarias, Miquel; Sanjuan, Josep; Jennrich, Oliver; Heinzel, Gerhard; Danzmann, Karsten // AIP Conference Proceedings;2006, Vol. 873 Issue 1, p344 

    In LISA Pathfinder and LISA the position fluctuations of drag free test masses will be determined interferometrically to picometer precision. To this end, laser light is brought to interference on an ultra stable optical bench after being reflected on the test mass, which needs to be in an...

  • Searches for continuous gravitational waves with LIGO and GEO600. Landry, M. // AIP Conference Proceedings;2/27/2008, Vol. 983 Issue 1, p627 

    Current searches for astrophysically generated gravitational waves include the ground-based interferometers GEO600 and LIGO. The sensitive band of the detectors is at audio frequencies, from a few tens of Hz to several kHz. We report on efforts to search the data from these detectors for...

  • GRAVITATIONAL WAVES — SEEN AND HEARD? K. H. // Astronomy;Jun2016, Vol. 44 Issue 6, p16 

    The article focuses on studies and detection of gravitational waves. It provides details about the detection of the signal of two colliding black holes by the Laser Interferometer Gravitational wave Observatory (LIGO) and LIGO's potential gravitational wave sources, which include collisions...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics