Book contents
- Frontmatter
- Contents
- Foreword
- Preface
- Notation
- Quotation acknowledgements
- 1 A zoo of astrophysical transient sources
- 2 Electromagnetic radiation processes
- 3 Curved spacetime and gravitational waves
- 4 Hadronic processes and neutrino emissions
- 5 Relativistic fluid dynamics
- 6 Winds and jets
- 7 Relativistic shock waves
- 8 Relativistic blast waves
- 9 Accretion disks and tori
- 10 Entropic attraction in black hole binaries
- 11 Transient sources from rotating black holes
- 12 Searching for long bursts in gravitational waves
- 13 Epilogue: the multimessenger Transient Universe
- Appendix A Some properties of Kerr black holes
- Appendix B Cosmological event rates
- Appendix C Relaxation limited evaporation
- Appendix D Some units and constants
- References
- Index
12 - Searching for long bursts in gravitational waves
Published online by Cambridge University Press: 05 August 2012
- Frontmatter
- Contents
- Foreword
- Preface
- Notation
- Quotation acknowledgements
- 1 A zoo of astrophysical transient sources
- 2 Electromagnetic radiation processes
- 3 Curved spacetime and gravitational waves
- 4 Hadronic processes and neutrino emissions
- 5 Relativistic fluid dynamics
- 6 Winds and jets
- 7 Relativistic shock waves
- 8 Relativistic blast waves
- 9 Accretion disks and tori
- 10 Entropic attraction in black hole binaries
- 11 Transient sources from rotating black holes
- 12 Searching for long bursts in gravitational waves
- 13 Epilogue: the multimessenger Transient Universe
- Appendix A Some properties of Kerr black holes
- Appendix B Cosmological event rates
- Appendix C Relaxation limited evaporation
- Appendix D Some units and constants
- References
- Index
Summary
A fact is a simple statement that everyone believes. It is innocent, unless found guilty. A hypothesis is a novel suggestion that no one wants to believe. It is guilty, until found effective.
Edward Teller (1908–2003)The prospect of an inner accretion disk or torus around a black hole producing gravitational waves may be anticipated from non-axisymmetries associated with QPOs, as currently observed in the electromagnetic spectrum in some of the X-ray binaries and, at low frequencies, in SgrA* (e.g., [581]). Non-axisymmetries are a natural outcome of various processes including instabilities, as discussed in Chapter 9. Their output in gravitational radiation may well be energetic on the basis of the energy losses inferred from the observed black hole spin down shown in Fig. 11.5. Long GRBs and perhaps some of the CC-SNe, therefore, offer a unique possibility for identifying Kerr black holes as objects in Nature by calorimetry on all their emission channels [604].
Introduction
Taking advantage of the nearly all-sky monitoring capability of gravitational-wave detectors, blind searches for long gravitational-wave bursts (GWBs) might be optimal in view of the beaming factor of long GRBs from fb < 10 (θ > 25 deg) up to a few hundred (θ ~ 4 deg, [214, 608, 258]). Blind searches are also expected to be competitive with current X-ray/optical surveys for detecting the shock break-out associated with an emerging CC-SNe, as they last only tens of minutes to at most a few hours. Blind searches naturally include long GRBs with no detectable supernovae, e.g., the long event GRB 060614 of duration 102 s discovered by Swift and the halo event GRB 070123 discovered by IPN (see Table 1.1 in Chapter 1).
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- Information
- Relativistic Astrophysics of the Transient UniverseGravitation, Hydrodynamics and Radiation, pp. 271 - 286Publisher: Cambridge University PressPrint publication year: 2012