Abstract Details

Name: Akriti Sinha
Affiliation: Indian Institute of Technoloy Indore
Conference ID : ASI2023_727
Title : Detailed study of the ELAIS N1 field with deep UVIT observations
Authors : Akriti Sinha, Abhirup Datta, C.S. Stalin, Divya Pandey
Mode of Presentation: Oral
Abstract Category : Extragalactic Astronomy
Abstract : In star-forming galaxies, young massive stars emit ultraviolet (UV) photons therefore resulting in a direct tracer of star formation rate (SFR) at UV wavelengths. Using the Ultra-Violet Imaging Telescope onboard AstroSat, we provide a deep far-ultraviolet (FUV) wide-field imaging study of galaxies in the ELAIS N1 field. For point sources, our data reach 5? limiting magnitudes at 25.86 AB mag in FUV. We present the ultraviolet catalog and obtained 1911 and 457 sources at 3? and 5?, respectively, along with their classifications. Besides, the optical catalog from the Sloan Digital Sky Survey and the infrared catalog from the Spitzer Wide-Area Infrared Extragalactic (SWIRE) survey is used with our catalogue to identify active galactic nuclei in the field. We classify 9 extended sources (class_star ≤0.1 ) as AGN based on the IRAC color diagnostic. We find 17 sources with spectroscopic redshift (zspec) and 634 sources with photometric redshifts (zph) in the 3? catalogue. We have also studied the ELAIS N1 field at 400 MHz using the upgraded Giant Metrewave Radio Telescope (uGMRT) which provides a contamination-free tracer of SFR. The extinction-corrected SFR is derived at FUV wavelengths. These will be compared to different SFR derived from IR and radio in future studies, preliminary results will be presented.