Type-I X-Ray Bursts And Fast Flares Evidence For Black Holes` Event Horizons

Yazeed Mohammed O Alturki

King Faisal School, Riyadh, Saudi Arabia

The All-Sky Monitor on Rossi X-ray Timing Explorer has been working for ten years. Data observed by ASM is stored in a main catalog that includes all sources and their emissions. Many sources and X-ray bursts remain unstudied due to lack of analysis. The study extracts type-I X-ray bursts from RXTE`s main catalogue and identifies their sources.

Furthermore, the study provides an analysis method recommended to be used on Chandra X-ray Observatory and RXTE in order to seclude type-I X-ray bursts from the two observatories` observations for further studies. The study uses chi-square statistics and further methods to identify irregular X-ray observations then uses visual identification to select type-I X-ray bursts from the resulting pool of observations.

It has been hypothesized by Narayan et al (2002) that black holes exist with event horizons if proven as non-emitters for type-I X-ray bursts. Throughout the process, no BHCs and BHBs were identified as sources for type-I X-ray bursts, thus; we conclude that our confidence in the hypothesis stating the use of type-I X-ray bursts as evidence for event horizons has been highly strengthened.