THE STUDY OF SCALING RELATIONSHIP USING BULK MOTION COMPTONIZATION MODEL AS A METHOD FOR DETERMINING SUPERMASSIVE BLACK HOLE MASS AND ITS APPLICATION ON THE BLAZAR 3C 273

• Main Author: Agyal Shahwiya, Fatiha
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/69996
• Institution: Institut Teknologi Bandung

Exploration of Active Galactic Nucleus (AGN) on multi-wavelength observations shows the existence of a special energy generation mechanism that allows the production of very large energy in a small-dimensional region, namely the accretion disk mechanism in supermassive black holes (SMBH). The complexity of the AGN environment and the orientation of the observer cause the observed AGN characteristics to vary, so a more detailed physical study is needed, including the determination of the mass of the black hole. Black hole mass determination in the AGN can be done by studying the gravitational effect of the black hole on the surrounding material using the reverberation mapping method. However, the complexity of the AGN environment limits the application of this method, so various methods of determining the mass of black holes in AGN continue to be developed. One of them is a scaling relationship that connects the AGN observation parameters to obtain the mass value of the black hole. Studies on the scaling relationship as a method of determining the mass of a black hole mostly use the Bulk Motion Comptonization (BMC) model, a model that represents radiation generated from the interaction of the accretion disk and the corona on the AGN. In this final project, the method of determining the mass of the scaling relationship is discussed and used to determine the mass of a black hole in one of the blazars, 3C 273, using X-ray observation data from the NuSTAR mission. There are seven data ID observations of 3C 273 objects that are processed and analyzed to obtain the scaling relationship parameters, namely the photon index and BMC normalization values obtained from spectrum analysis using the xspec module in HEAsoft software. The result obtained shows that the mass of the 3C 273 black hole has an average of ???????????????????????? ???? ????????????????????, with the minimum and maximum mass value still covers the mass value obtained by reverberation mapping method.