LIGO Open Data Survey

Dear Astronomer,

Gravitational wave astronomy is coming, thanks to the LIGO and Virgo advanced detectors that will be online at or after 2015. The LIGO Scientific Collaboration will release open data to the broader community, including rapid alerts for follow-up observation, and the detected strain corresponding to astrophysical detections. In order to make the open data program most useful to astronomers, LIGO is asking you to fill in a survey about what you see as most important for us to support.

Please take a few minutes to fill in the survey on LIGO Open Data at the link below. You don’t have to answer all the questions. We really appreciate your time and thoughts.

Thank you
Patrick Brady
Roy Williams
LIGO Scientific Collaboration

NINJA-2 project

The Numerical INJection Analysis project (NINJA) is a collaboration between researchers in numerical relativity and gravitational wave data-analysis. The basic idea is to embed numerically computed gravitational waveforms into noise representative of the LIGO and VIRGO detectors. The resulting data-sets are then analysed to gain insight into the properties of gravitational wave data-analysis pipelines. The first NINJA project was a great success with the final paper being published in August.

A more ambitious follow-on project, NINJA-2, is just getting underway, and everybody interested in the project is welcome to join. The kick-off telecon for this project took place on October 15, 2009. NINJA-2 aims to examine non-precessing binary black holes in realistic detector noise: Long gravitational waveforms (obtained by combining an analytical post-Newtonian inspiral waveform with a fully numerical merger simulation) are injected into realistic LIGO/Virgo detector noise; the resulting data-sets are then analysed to gain insight into properties and efficiencies of data-analysis pipelines.

The minutes of this telecon, as well as further information about NINJA-2 are posted on the NINJA-webpage Follow-on discussions of the telecon are handled via the mailing list Please subscribe to this list at