Speaker
Description
Julius Chuhwak Matthew*1,2; Roberto De Propris1,3; Jorge Melnick4; Susan E. Ridgway5
1Department of Physics and Astronomy, Botswana International University of Science and Technology (BIUST), Private Bag 16, Botswana
2Department of Physics and Astronomy, University of Nigeria Nsukka (UNN); julius.matthew.93565@unn.edu.ng
3Finnish Centre for Astronomy with ESO, University of Turku, Vesilinnantie 5, Turku FI-21400, Finland
4European Southern Observatory (ESO), Av. Alonso de Cordova, 3107 Santiago, Chile
5NSF NOIRLab, 950 N Cherry Ave, Tucson, AZ 85719, USA
Abstract
We have identified a sample of quiescent ellipticals which are not truly quiet. The spectra and images of these sources show residual or/and strong star formations. To have a better understanding of these galaxies, we opted for the multi-wavelength approach spanning the Far Ultra-Violet (FUV) to Sub-millimetre. In-order to get a wealth of in-depth information about these so called quiet ellipticals, we used the Code Investigation GALaxy Emission (CIGALE) population synthesis model. To have clearer understanding of our sources, the 20cm stacking becomes a vital tool. We plan on extending our study to using Supernovas, as they could clarify once and for all the fate of these quiet ellipticals. So far, we highlight the Ultra-Violet (UV) and Infra-Red (IR) excesses displayed by these quiet ellipticals. We have also observed that; no correlation exist between the UV and IR excesses.
| Stream | Science or Engineering |
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