Astronomía Extragaláctica

The Rubin Observatory Legacy Survey of Space and Time (LSST) will observe 20,000 square degrees repeatedly throughout 10 years in 6 photometric bands (ugrizy), allowing us to study the variable universe with unprecedented detail, as well as obtaining an unprecedented combination of area and depth once all the observations are stacked. The survey will start …

Optimización de los desplazamientos al rojo fotométricos de AGN para LSST Leer más »

The Rubin Observatory Legacy Survey of Space and Time (LSST) will observe 20,000 square degrees repeatedly throughout 10 years in 6 photometric bands (ugrizy), allowing us to study the variable universe with unprecedented detail, as well as obtaining an unprecedented combination of area and depth once all the observations are stacked. The survey will start …

Predicción del conteo de números de AGN del LSST de Rubin Leer más »

Hot Dust Obscured Galaxies, or Hot DOGs, are some of the most luminous obscured quasars known in the Universe. Quasars and mergers, in general, are expected to play a major role in the evolution of massive galaxies. The idea is that mergers are able to drive gas down from the ISM into the central supermassive …

Firmas de fusión en galaxias oscurecidas por polvo caliente Leer más »

Hot Dust Obscured Galaxies represent a significant fraction of the most luminous heavily obscured quasars known in the Universe. A small subset of them, referred to as BHDs, show excess blue emission, thought to arise from scattered light from the highly obscured quasar. Detailed studies of three of these objects (Assef et al. 2016, 2020) …

Polarimetría de imágenes de galaxias oscurecidas por exceso de polvo caliente azul Leer más »

In this project, we focus on a sample of radio-loud quasars at z>3.5 with deep VLT/MUSE data. We study the properties of their circumgalactic medium and closest environments, by inspecting for the presence of Lyman Alpha Halos and close-by Lyman Alpha Emitters. We will compare such results with what is observed in quasars with no …

Una visión MUSE de cuásares de radiofrecuencia de alto corrimiento al rojo Leer más »

In this project, we compile a catalog of high-redshift (z>5.5) quasars candidates to be followed up by 4MOST as part of the Chilean survey “ChANGES” (Chilean AGN/Galaxy Extragalactic Survey). We use a selection based on available optical/NIR large-area sky surveys, and on a custom-made spectral energy distribution routine. Type of project: Research, actively recruiting new …

Selección de candidatos a cuásares de alto corrimiento al rojo para el estudio 4MOST “CHANGES” Leer más »

This project focuses on understanding several physical properties of powerful quasars showing strong radio emission (radio-loud) in the Epoch of Reionization (z~6). We are interested in studying their large-scale environments where these objects are found, predicted to be very rich. In order to do this, as a start, we will inspect the fields of three …

Las propiedades de los cuásares de radiofrecuencia de alto corrimiento al rojo en la época de la reionización Leer más »

We are characterizing the massive and IR bright protoclusters discovered by the SPT SMG survey of the southern sky. We are studying the cold ISM through deep ALMA band-1 observations of CO(2-1) in the iconic SPT2349-56 protocluster at z=4.3, and the environment and CGM around three other protoclusters at z>4 through VLT/MUSE observations of the …

Characterization of IR bright protoclusters at z>4 Leer más »

The ALMA CRISTAL large program (PI: R. Herrera-Camus; co-PIs: M. Aravena, J. González-López et al.) is designed to provide unique constraints on the morphologies, kinematics, existence of outflows, and ISM properties of galaxies at z=4-6. Our group is focused on the study of the interplay between the ISM and CGM of galaxies by characterizing the …

El gran programa ALMA CRISTAL Leer más »