Session: Data Analysis and Multi-Messenger Astronomy Workshop (February 24, 2010)    

Title: Using temporal distributions of transient events to characterise cosmological source populations

  Speaker: Eric Howell      

The brightest events in a time series of cosmological transients obey an observation time dependence which is often overlooked. This dependence can be exploited to probe the global properties of transient events such as gamma ray bursts and gravitational wave sources. We describe a new relation based on a peak flux--observation time distribution and show that it is invariant to the luminosity distribution of the sources. This relation, in combination with a new data analysis filter, is applied to Swift and BATSE gamma-ray burst data to demonstrate that it can constrain their rate density and can potentially be used as a probe of detection biases.

  Back to Session Back to Programme Back to Detailed Programme