| Name: | Abhinna Sundar Samantaray |
| Affiliation: | Universität Heidelberg |
| Conference ID : | ASI2024_129 |
| Title : | Star formation in NGC 7469/IC 5283 interacting galaxies |
| Authors : | Abhinna Sundar Samantaray 1,2, Harvinder Kaur Jassal 2, Kulinder Pal Singh 2, Gulab Chand Dewangan 3 |
| Authors Affiliation: | 1 Astronomisches Rechen-Institut (ARI), Universität Heidelberg, Mönchhofstraße 12-14, 69120 Heidelberg, Germany
2 Department of Physical Sciences, Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81, SAS Nagar, Punjab 140306, India
3 Inter-University Centre for Astronomy and Astrophysics, Ganeshkhind, Pune 411007, India |
| Mode of Presentation: | Poster |
| Abstract Category : | Galaxies and Cosmology |
| Abstract : | We carried out in-depth Near-UltraViolet (NUV) and Far-UltraViolet (FUV) imaging of an interacting galactic system: the Seyfert type 1 galaxy NGC 7469 and its companion, IC 5283. Our primary objectives were to unravel various star-forming regions nestled within the outer arms of these galaxies and to discern any telltale signs of their galactic interaction. To achieve this, we used AstroSat's Ultra Violet Imaging Telescope (UVIT), capturing NUV and FUV images of NGC 7469 through various filters. Our NUV and FUV images show the presence of a spiral arm not resolved earlier. Signatures of tidal interaction of NGC 7469 with its neighbour IC 5283 are seen in the tail. Through photometric analysis, we mapped the distribution of various star-forming regions and compared SFR distributions and the sizes of the two galaxies amongst various UVIT filters. Despite the apparent interaction and increased star formation activity, no significant differences in SFR distributions were found, indicating that the interaction did not substantially alter their overall star formation processes. However, there is some indication that very massive star formation activity may have been different in the two galaxies. We also derived the Spectral Energy Distribution, leading to the determination of physical parameters, including star formation rate (SFR), stellar mass (M_*), dust mass (M_Dust), and specific star formation rate (sSFR) to understand the overall evolution of NGC 7469 and IC 5283. |
