Abstract Details
| Name: Aswathy S Affiliation: Department of Physics, University of Calicut Conference ID: ASI2018_1671 Title : Estimation of the masses of super massive black holes in nearby galaxies using central intensity ratio Authors and Co-Authors : Ravikumar C. D. Department of Physics, University of Calicut. Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : Super massive black holes residing at the centres of nearby galaxies are believed to be closely associated with the evolution of their host galaxies. In the present study, we device a simple method to estimate the masses of super massive black holes (SMBHs) using photometric methods. SEXTRACTOR is used to carry out aperture photometry and the central intensity ratio (CIR) is measured for a sample of 49 nearby galaxies with SMBH mass estimations. We find a strong anti- correlation between the CIR of ellipticals and classical bulges and the mass of the SMBH whereas pseudobulges and ongoing mergers show significant scatter. Also, the CIR is correlated with various properties of the host galaxies such as mass of the spheroid and age of the stellar population. This method can serve as a simple tool to distinguish classical bulges from pseudobulges and also to estimate the mass of the super massive black hole . |