GW170104

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 are 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 GW170104 , summarizing the event. There is a technical details page about the data linked below, and feel free to contact us . The location of GW170104 in the sky can be determined only roughly using the data from the two gravitational-wave detectors. A "skymap", representing the position probability as a function of astronomical sky coordinates (right ascension and declination), was initially computed by a software package called BAYESTAR. After final calibration of the data, the skymap was recomputed with a more sophisticated package called LALInference which simultaneously adjusts all the source parameters and allows for calibration uncertainties.