Astronomer
Hi!
I am a Chilean astronomer from Concepción. In 2022 I finished my PhD in Astrophysics at Universidad de Valparaíso in Chile. Now I'm a postdoctoral fellow at the Observational Cosmology group, led by Dr. Sherry Suyu at the Max Planck Institute for Astrophysics and the Technical University of Munich in Garching bei München, Germany.
In the last years, I have worked on searching for gravitationally lensed transients using deep learning. I also study the source structure in lensed quasars, trying to understand the relation that the supermassive black holes have with their host galaxy and the co-evolution between the supermassive black hole mass and its environment.
I estimated black hole masses (MBH) for 15 gravitationally lensed quasars using Balmer lines, along with MgII and CIV emission line estimates. The data were collected from various instruments, primarily the X-shooter at the Very Large Telescope (VLT). As a result, I increased the sample of lensed quasars with MBH estimates by 60%.
This work explores the use of deep learning to detect gravitational lenses by combining high-resolution Hubble Space Telescope (HST) data with multi-band Legacy Survey (LS) images. I compare four model architectures, and the results demonstrate the benefits of multi-source data fusion for improving lens detection accuracy.
In this study, I use single-epoch spectra to detect chromatic microlensing and estimate the size and temperature profile of the emitting region.
Paper in preparation.
Email amelo@mpa-garching.mpg.de