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Neil J. Cornish & Shane Larson (Caltech)

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Presentation on theme: "Neil J. Cornish & Shane Larson (Caltech)"— Presentation transcript:

1 Neil J. Cornish & Shane Larson (Caltech)
LISA Data Analysis Neil J. Cornish & Shane Larson (Caltech)

2 Outline The LISA Data Analysis Problem
Antenna Pattern and Detector Response Signal Modulation Circular Newtonian Binaries Template Space Topology & Geometry Source Identification Source Subtraction

3 Data Analysis: LISA LIGO Simple Waveforms High signal/noise
(Too) Many sources Complex modulation One detector Complex Waveforms Poor signal/noise Few sources Weak modulation Two detectors (Exception: Spinning Black Hole Binaries) (Exception: Isolated Pulsars)

4 Detector Response Detector Response Tensor
Decompose into Fourier components Detector Response Tensor (Cornish & Larson 2001,Cornish & Rubbo 2002)

5 Antenna Patterns

6 LISA’s scan pattern Frequency Modulation Amplitude Modulation

7 Circular Newtonian Binaries

8 Signal Modulation AM FM PM (Cutler 1998, valid for )

9

10

11 Template/Parameter Space
Topology: Geometry: (Doppler metric)

12 Sky Location

13 Frequency and Orbital Phase

14 Angular Momentum Sphere

15 Template Count >75% Overlap (>95% Overlap takes ~ )
Fourier space method takes ~ 1 kflop to generate each template. Few hours to generate >95% bank.

16 gCLEAN Procedure

17 Single Source

18 Multiple Sources

19 Current Work Incorporating full detector response model
Using all A,E,T channels Chirping sources Simultaneous multi-source removal


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