| Name: | Rupak Roy |
| Affiliation: | Manipal Centre for Natural Sciences, Manipal Academy of Higher Education |
| Conference ID : | ASI2024_708 |
| Title : | Low-resolution spectroscopic view of the hosts of Tidal Disruption Events |
| Authors : | Rupak Roy |
| Authors Affiliation: | Manipal Centre for Natural Sciences (Centre of Excellence), Manipal Academy of Higher Education, Manipal - 576104 |
| Mode of Presentation: | Poster |
| Abstract Category : | Galaxies and Cosmology |
| Abstract : | With the advent of time-domain astronomy brilliant transients have already been discovered near the centers of distant galaxies. Most of them exhibit very broad lightcurves with almost featureless spectra at early stages. They are spatially unresolved from their hosts' centers. Some of them are supposed to be disruptions of solar mass stars by supermassive black holes located at the centers of their host galaxies. These are commonly known as Tidal Disruption Events (TDEs). Around 80 such TDEs (or TDE-like events) have been discovered so far. Observationally it has been found that TDEs are mostly hosted by galaxies that have old stellar populations. We have analyzed low-resolution spectroscopic data of centers of ~50 galaxies where TDE / TDE-like events were observed previously. These observations were performed from 10m SALT, and also from several medium-class optical facilities. Here, we will present a comprehensive analysis of the spectra of these galaxies, to understand the bulk properties of TDE hosts. We will also present a comparative study between the properties of these galaxies with the properties of other galaxies where TDEs were not discovered. |
