Abstract Details
| Name: KRISHAN CHAND Affiliation: ARIES Conference ID: ASI2018_1643 Title : AGN Reverberation Monitoring (DOT-ARM): Probing AGN Black-hole Masses And Broad Line Regions. Authors and Co-Authors : Amitesh Omar & Hum Chand Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : Resolving the gas clouds of broad line region (BLR) of AGN, remain even challenge for modern long baseline interferometry. Understanding the gas motion, accretion processes and estimation of BH mass needs intensive spectro-photometric reverberation mapping (RM). However, such emission line RM is expensive, in terms of resources, requiring more than 2m-class telescope. Recently, narrow-band photometry has been proven also a reliable technique to measure the line flux and hence allowing one to do photometric reverberation mapping (PRM) even with a 1-2m class telescope. On the other hand, it is unclear whether low luminous AGNs follow the same M-L and R-L scaling relation as intermediate AGNs. Therefore, to check the feasibility of PRM from ARIES 1.3m Devasthal Fast Optical Telescope (DFOT), we did photometric reverberation mapping of well selected nearby low luminous AGN MCG+09-16-013. For this, we used the narrow band filter SII to measure the reshifted H-alpha emission line flux, while broadband B and V filters for continuum flux measurements. We found that the black hole mass calculated on the basis of PRM is very much consistent with R-L relation and also the errors we got in PRM were very small. Therefore, from our results, we concluded that PRM based black hole mass estimation of low luminous AGNs is feasible from 1.3m DFOT which we will be extending to a statistically large sample based on newly procured sets of redshifted narrow band filters. |