GW151226

This page has been prepared by the LIGO Scientific Collaboration (LSC) and the Virgo Collaboration to inform the broader community about a confirmed astrophysical event observed by the gravitational-wave detectors, and to make the data around that time available for others to analyze. There is more information about this event in a companion paper "Binary Black Hole Mergers in the first Advanced LIGO Observing Run", which is available from LIGO DCC . There is more open data about this event, in the files attached to the above paper in the LIGO DCC . There are Science Summaries , covering the information below in ordinary language. This dataset has the Digital Object Identifier (doi) There are tutorials to work with the strain data . There is a one page factsheet about GW151226 , summarizing the event. There is a technical details page about the data linked below, and feel free to contact us . Data usage notes: Please Read This First! The data are provided in three formats. HDF5 , Frame (.gwf) , and gzipped ascii text. Many data analysis environments can read in data from HDF5 files, including Python (see the h5py package), MATLAB, C/C++, and IDL. The md5 checksums provide a check for downloaders that they have received the right file: run the Unix command "md5" (or "md5sum", depending on your OS) on your file and compare to LOSC published values . If different, try downloading again, and if the problem persists, contact us . Technical details especially about data quality and injections Tutorials to work with the strain data . 32 seconds (event is 16.65 seconds from start) hdf5 gwf txt.gz hdf5 gwf txt.gz 4096 seconds (event is 122.65 seconds from start) hdf5 gwf txt.gz hdf5 gwf txt.gz 32 seconds (event is 16.65 seconds from start) hdf5 gwf txt.gz hdf5 gwf txt.gz 4096 seconds (event is 122.65 seconds from start) hdf5 gwf txt.gz hdf5 gwf txt.gz Sky localization was provided at low-latency by the BAYESTAR and CWB pipelines, and later with LALInference. After all the data and calibration was finalized, the LALInference skymap was made again, and it is the "best" skymap, therefore we put it first. These files are derived from the strain data above, through signal processing as defined in the tutorial notebook "Tutorial on Binary Black Hole Signals in LIGO Open Data" , that can be found in the tutorials section of this website .