The COSMOS High-z ALMA-MIRI Population Survey (CHAMPS; PI: A. Faisst, co-PI: M. Aravena et al.) is an ALMA large program in Cycle 11 that will obtain a 0.18 deg2 blank-field survey at 1.1mm in the COSMOS field, covering 3x the area of existing ALMA surveys, to push our understanding of the dusty Universe. ALMA CHAMPS …
One of the most interesting findings of recent ALMA [CII]158um galaxy surveys (e.g. ALPINE, REBELS, CRISTAL) has been the clear presence of extended [CII] line emission among massive star-forming galaxies at z=4-6, beyond the rest-frame UV and dust continuum emission and extending out to ~10-kpc. Despite being key to understanding the interplay between star formation …
ORCHIDS: ORigin of the [C II] Halos In Distant Systems Leer más »
A consistent picture has emerged on the average flow of baryons in and out of galaxies and its role in regulating galaxy formation in the past 12 billion years. In this picture, the circumgalactic medium (CGM) is one of the main players, as it mediates accretion, outflows, and metal mixing, and ultimately the cool gas …
Conectando los medios interestelar y circumgalácticos en galaxias a alto redshift Leer más »
The many faces and personalities of galaxies are shaped by physical processes that affect their different components – like bulges and discs – in different ways and leave characteristic imprints on the light and spectra of these components. Disentangling their spectra can reveal vital clues that can be traced back in time to understand how …
The objective of this project is to create advanced and realistic models of X-ray radiation within Active Galactic Nuclei (AGN), and apply these models to actual observational data. Current leading models in this field exhibit various limitations, either to their implemented physics or their geometrical configuration. The majority of these models utilize fixed geometries, although …
Studying galaxies’ ISM and environments at high redshifts is an essential component to study galaxy evolution. With this in mind, this thesis is divided into two main projects, the first of which involves studying the ISM of a “normal”, main-sequence galaxy at z = 5.25. High-redshift observations are often biased towards massive and bright galaxies …
The goal of my thesis is to present an analysis of the ASASSN survey core-collapse supernova (CCSN) environments and occurrence rates, to constrain the progenitor stars related to each CCSN subtype. For the first project, I analyzed a sample of 111 galaxies observed by the All-weather MUse Supernova Integral field Nearby Galaxies survey (AMUSING) that …
Caracterizando los entornos y tasas de ocurrencia de supernovas de colapso de núcleo Leer más »
We are reaching a critical moment where sub-arcsec observations are key to disentangle the physical mechanisms that shaped young galaxies at z > 5. In this thesis, we explored the morphology and kinematics of the cold gas, star-forming, and stellar components of two massive star-forming galaxies at z = 5 – 7, using high-resolution (0.3′′) …
The structure and dynamics of the interstellar medium of galaxies in the early universe Leer más »
In the first project of this thesis, we studied galaxies with faster inside-out assembly at lower redshifts using data from SDSS, WISE, GALEX, and Galaxy Zoo. We analyzed 48,127 IOAG candidate galaxies with stellar mass log M∗ = 10.73 − 11.03 L⊙ and redshift z < 0.1. Our classification found 20% were star-forming, 40% AGN, …
Entornos de galaxias con polvo caliente oscurecido. Leer más »
4MOST is an upcoming spectroscopic survey that throughout 5 years will obtain spectra of tens of millions of sources in the southern hemisphere. 4MOST is divided among many public surveys, including the Chilean AGN and Galaxy Evolution Survey (ChANGES). This public survey will obtain spectra of millions of active galactic nuclei, or AGN, selected in …
Selecting 4MOST ChANGES Targets based on their SEDs Leer más »