Sanjeev Dhurandhar Colloqm - Indian Institute of Astrophysics

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The LIGO Scientific Collaboration 500 scientists at 42 institutions 27 US & 15 international 12 th February 2008 Indian Institute of Astrophysics Colloquium
Stochastic GW background: Directed search S.Mitra, SVD, T. Souradeep, A. Lazzarini, V. Mandic, S. Bose, S. Ballmer (2007) - Ligo Science Collaboration • Produced by unresolved gravitational wave sources – Blackhole mergers, r-modes, LMXBs, … Waveforms not well modelled • Statistic: : Cross-correlation between two detectors with a directed optimal filter Q ¿ dt ∬ dt ' dt ``s rSub { size 8{1} } ` \( t' \) `s rSub { size 8{2} } } ` \( t Q ¿ S = ∫¿ ¿ ; t , t ' − t \) } {} 12 th February 2008 Indian Institute of Astrophysics Colloquium
Page 1 and 2: S. V. DHURANDHAR IUCAA PUNE 12 th F
Page 3 and 4: GRAVITATIONAL WAVE ASTRONOMY • En
Page 5 and 6: Quadrupole formula : But h is awful
Page 7 and 8: LIGO Louisiana 4 km armlength (US)
Page 9 and 10: TAMA Japan 300m Interferometric Det
Page 11 and 12: Technology pushed to the limits Vac
Page 13 and 14: The noise floor • Seismic noise a
Page 15 and 16: Astrophysical Sources • Compact b
Page 17 and 18: Inspiraling compact binaries GW •
Page 19 and 20: Parameter space: 1 - 30 solar masse
Page 21 and 22: Breakthrough in Numerical Relativit
Page 23: Astrophysical Results • Chirps -
Page 27 and 28: De-convolving the GW sky-map The in
Page 29 and 30: Solution for a `galactic distributi
Page 31 and 32: LISA • A Collaborative ESA / NASA
Page 33 and 34: LISA sensitivity curve • Confusio
Page 35 and 36: Fundamental Physics: LISA SCIENCE
Page 37 and 38: LISA data analysis at IUCAA Time-de

Sanjeev Dhurandhar Colloqm - Indian Institute of Astrophysics

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