Name: Payel Nandi
Affiliation: Indian Institute of Science, Indian Institute of Astrophysics
Conference ID : ASI2022_326
Title : Star formation characteristics in the host of the seyfert type AGN NGC 4395
Authors : Payel Nandi, C.S. Stalin, S. Muneer, S. Ramya
Abstract Type: Poster
Abstract Category : Extragalactic Astronomy
Abstract : Relativistic jets/outflows from active galactic nuclei (AGN) can have profound impact on their host galaxies. They can induce or inhibit star formation. Also, we do have evidences of AGN inducing and inhibiting star formation in a single system at the same time. There is thus growing evidence that the interplay between supermassive black holes at the center of AGN and their hosts is complex. Observations at different spatial scales as well as at different wavelengths are needed to build a comprehensive picture of the relation between AGN and their hosts. In this work, we aim to investigate this relation using a case study of a Seyfert type AGN, NGC 4395. This AGN is located at a redshift of z = 0.001 and powered by a intermediate mass black hole with M ~ 10^5 solar mass. For this, we have conducted a multi-wavelength study utilizing data in the ultraviolet band from UVIT on-board AstroSat, infrared data from Spitzer and ground based optical imaging and spectroscopic data from the Himalayan Chandra Telescope, Hanle. The UV observations in conjunction with the narrow band H_alpha imaging observations have enabled us to identify many star forming regions. A few properties of these star forming regions such as age, star formation rate etc., were determined by comparing models with observations as well as targeted spectroscopic observations of few regions. Star forming regions as young as a few Myrs are found. We also investigated the variation of the derived parameters across the galaxy. Details of this work will be presented.