Abstract Details
| Name: Bhoomika Rajput Affiliation: IIA, Bengaluru Conference ID: ASI2019_257 Title : Gamma-ray flux variability and spectral characteristics of Fermi blazars Authors and Co-Authors : Bhoomika and C.S.Stalin Abstract Type : Oral Abstract Category : Extragalactic Astronomy Abstract : Blazars are radio-loud active galactic nuclei (AGN). These sources with their relativistic jets pointed close to be observer show flux variations over the entire accessible electromagnetic spectrum from low energy radio to high energy gamma-rays. As of today, our knowledge on the gamma-ray flux variability and spectral characteristics of blazars is limited to a few number of sources discovered by EGRET onboard the Compton Gamma ray Observatory. However, a complete characterization of the gamma-ray flux variability and spectral nature of blazars is now possible with the availability of many hundreds of blazars discovered by the Fermi gamma-ray space telescope launched in 2008. Blazars also dominate the extragalactic gamma-ray sky revealed by Fermi. We have carried out a systematic study on spectral characteristics and gamma-ray flux variability of about one thousand blazars discovered by Fermi. For flux variability analysis and gamma-ray average spectra, data from Fermi covering about 9 years was used. The analysis was carried out separately for flat spectrum radio quasars (FSRQs) and BL Lac objects (BL Lacs). Details of the results will be presented. |