Recent Talks

Finally, I will summarise our ongoing JWST work within the GATOS (Galactic Activity, Torus and Outflow Survey) collaboration. In particular, I will focus on our recent study about the survival of PAH molecules in AGN-driven outflows.

El Telescopio Solar Europeo (EST), de clase cuatro metros, es un proyecto que se encuentra en su fase de diseño preliminar, previa a la fase de construcción. Con él se pretende aunar y mejorar las prestaciones de los actuales telescopios solares de clase un metro que están operativos. Uno de los principales objetivos en esta fase del proyecto es poder identificar, definir y gestionar los requisitos de cada una de sus disciplinas organizadas en los distintos paquetes de trabajo definidos. En esta charla se pretende mostrar las herramientas utilizadas para llevar a cabo esta importante tarea.

Youtube

https://youtube.com/live/31KKPdG96LI?feature=share

Zoom: https://rediris.zoom.us/j/86826646040?pwd=UmpEZmdKYW90QUpVelFKZitzTzhKUT09
Meeting ID: 868 2664 6040
Passcode: 610738

Youtube: https://youtube.com/live/4-WXSHynTXw?feature=share

Galaxies and the dark matter halos in which they reside are intrinsically connected. That relationship holds information about key processes in galaxy and structure formation. In this talk, I will consider how the galaxy-halo connection depends on position within the cosmic web - the familiar decomposition of large-scale structure in filaments, knots and voids. Simulations demonstrate the various ways in which the cosmic web modulates the growth and dynamics of halos. The extent to which the cosmic web impacts on galaxies is more difficult to establish. For example, galaxies might be sensitive only to the evolution of the host halo, in which case any effect of the cosmic web on galaxies is secondary, and can be inferred from the halo's history. There is evidence, however - from simulations and observations - that the cosmic web also impacts on the evolution of galaxies via the effect it has on the broader gas ecosystem in which they are embedded, as well as through "pre-processing" effects on group scale. So, how should we think of the cosmic web in its role as a transformative agent of galaxies? And what physical processes can we convincingly constrain from observations and simulations? In this talk I highlight recent work that addresses these questions.

El Telescopio Solar Europeo (EST), de clase cuatro metros, es un proyecto que se encuentra en su fase de diseño preliminar, previa a la fase de construcción. Con él se pretende aunar y mejorar las prestaciones de los actuales telescopios solares de clase un metro que están operativos. En esta charla se hará un repaso de las herramientas, diagramas, flujo de trabajo utilizado para la definición de los sistemas y subsistemas que abarca el ECS (EST Control System).

Unirse a la reunión Zoom:

https://rediris.zoom.us/j/85762975287
ID de reunión: 857 6297 5287

Youtube:

https://youtube.com/live/h8cpg5yUe9E?feature=share

I present the recent results obtained using the updated version of MG-MAMPOSSt, a code that constrains modified gravity (MG) models viable at cosmological scales using determination of galaxy cluster mass profiles with kinematics and lensing analyses. I will discuss limitations and future developments of this method in view of upcoming imaging and spectroscopic surveys, as well as the possibilities of including X-ray data to break degeneracy among model parameters. Finally I will show preliminary results about the constraints that can be obtained on the inner slope of dark matter profiles when adding the velocity dispersion of the Brightest Central Galaxy (BCG) in the dataset of MG-MAMPOSSt.

FS CMa stars are a subgroup of the B[e] stars. The forbidden emission lines and infrared excess are present in their spectra. This is a sign of very extended circumstellar region. While the B[e] phenomenon has been explained for other B[e] groups, the nature and evolutionary status of FS CMa stars has not been explained. Recently, we discovered very strong magnetic field in one of FS CMa stars, IRAS 17449+2320. The strength of the magnetic field modulus, about 6.2 kG, is in the order of the strongest Ap stars. The magnetic field together with other properties point to the post-merger origin of IRAS 17449+2320. It is very likely that other post-mergers are hidden among FS CMa stars.

The first results of our new N-body simulations show that more than half of mergers occurs in B-type stars. In other words, we are overlooking the most frequent channel of the mergers. This may have an important consequence for the enrichment of the ISM by heavier elements. Especially important it may be in the early universe.