IVth School of Astroparticle
27th - June 1st, 2013
OHP, Saint Michel l'Observatoire
Gravitational waves associated with known astrophysical events
Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik (AEI)
this lecture I introduce the generic reasons behind the improvement in
GW sensitivity from external triggers, and how it is limited by EM
phenomenology and observation capabilities. I show how astrophysical
models of gamma-ray bursts and soft gamma repeaters guide the
construction of EM triggered GW searches, and what data analysis
techniques are enabled by the presence of an external trigger. I
conclude with several examples of astrophysical statements that could
be determined by EM triggered GW detection.
- Why external triggers help finding GWs ?
- How astrophysical models of EM and GW emission define the search parameter space?
- Data analysis techniques that are enabled by external triggers
- Examples of potential astrophysical conclusions from EM triggered GW discoveries
gravitational wave (GW) searches are performed as followups of
electromagnetic (EM) observations of astrophysical events, such as
gamma-ray bursts, soft gamma repeaters or pulsar glitches. The presence
of an astrophysical trigger allows the detection of weaker GWs and a
richer result interpretation compared to blind all-time all-sky GW
- C. S. Kochanek and T. Piran. Gravitational waves and gamma-ray bursts. Astrophys. J. Lett., 417:L17, 1993.
- B. P. Abbott et al. Implications for the origin of GRB 070201 from LIGO observations. Astrophys. J, 681:1419, 2008.
- B. Abbott et al. Search for gravitational-wave bursts from soft gamma repeaters. Phys. Rev. Lett., 101:211102, 2008.
Abadie et al. Search for gravitational waves associated with gamma-ray
bursts during LIGO science run 6 and Virgo science run 2 and 3.
Astrophys. J., 760:12, 2012.
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