Seminars
 
CSIC
19/06/2020 - 00/00/0000
ETG properties as revealed by MaNGA
On-line
In this talk I will (try to!) summarise the findings presented in a series of four papers dedicated to the study of early type galaxies (ETGs) with integral field spectroscopy (IFU) from the MaNGA survey.
CSIC
05/06/2020 - 00/00/0000
The Driving Mechanisms Of Protostellar Evolution
Online
Gravity and magnetic fields are competing entities in the formation process of stars like our Sun. While dense cores of molecular clouds collapse under their own gravity, magnetic fields represent a resisting force since charged dust and gas are tied to the field lines.
CSIC
24/04/2020 - 00/00/0000
The Atacama Large Aperture Submm Telescope (AtLAST): Cosmological and Sunyaev-Zeldovich Effect Applications
Online: Join Zoom Meeting https://zoom.us/j/346578843
The thermal and kinematic Sunyaev–Zel'dovich (SZ) effects provide a strong and independent complement to X-ray observations of the warm and hot ionised intracluster medium, particularly at high redshift where X-ray counts are limited.
CSIC
13/03/2020 - 00/00/0000
A new approach for modelling pulsar wind nebulae
Sala Alberto Lobo (ICE building, UAB Campus)
Update 13.03.2020 - ALL CSIC SEMINARS ARE CANCELLED UNTILL FURTHER NOTICE
CSIC
11/03/2020 - 00/00/0000
The cosmic origin of the rapid neutron capture elements
Sala Alberto Lobo (ICE building, UAB Campus)
The processes that create the elements that make up the periodic table were laid down theoretically in the late 1950s, but the cosmic forges that actually carry out these processes have been more difficult to identify. The rapid (r) neutron capture process creates half of all the elements heavier than iron and the bulk of the heaviest elements, including almost all gold, platinum, and uranium. Its site is currently a major source of debate.
UB
09/03/2020 - 00/00/0000
Simons Observatory: The Next-Generation Microwave Background Experiment
DAM Seminar (724, ICC building, UB Campus)
Over the past 20 years, microwave background observations, particularly from the WMAP and Planck satellites and the SPT and ACT ground-based telescopes, have established the standard model of cosmology. We are now pushing towards a new generation of ground-based experiments with significantly higher sensitivity.
UB
05/03/2020 - 00/00/0000
Nuclear activity and star formation in local Luminous Infrared Galaxies
DAM Seminar (724, ICC building, UB Campus)
Luminous infrared galaxies (LIRGs) dominate the cosmic infrared background, and hence their study is crucial to understand galaxy formation and evolution. Furthermore, their extreme environments make them ideal laboratories to probe both star formation, nuclear activity, and the interplay between both phenomena.
CSIC
28/02/2020 - 00/00/0000
Magneto-luminescence: from neutron stars to planets
Sala Alberto Lobo (ICE building, UAB Campus)
Magnetic fields play an important but often little understood role in many astrophysical scenarios. In astrophysical bodies, magnetism often drives their observable behaviour, making them outshine the rest of the sources. Typical and spectacular examples are neutron stars, but in our vicinity also the Sun and Jupiter represent fascinating magnets, not to speak about the Earth itself.
UB
27/02/2020 - 00/00/0000
Geodesic deviation in field space: flattened non-gaussianities and PBH
Aula 507 (Pere Pascual, ICC building, UAB Campus)
Several recent proposals to embed in?ation into high-energy physics rely on in?ationary dynamics characterized by a strongly non-geodesic motion. This in turn relaxes the conditions of slow-roll to allow for potentials that are steep in Planck units, a welcome feature in view of the eta problem and the recently much discussed swampland conjectures.
UB
21/02/2020 - 00/00/0000
New lanterns to illuminate (ultra) light dark matter
DAM seminar room (724 , ICC building, UB Campus)
The landscape of dark matter models extends to masses well below those accessible by traditional detectors, based on nuclear recoil. In particular axions and axion-like particles are in this category. A new battery of ideas is emerging to detect these dark matter candidates, from astrophysical or laboratory tests.
CSIC
21/02/2020 - 00/00/0000
Intelligent Arxiv: Sort daily papers by learning users topic preferences
Sala Alberto Lobo (ICE building, UAB Campus)
We present and discuss some novel applications of the Linear Discriminant Analysis (LDA) technique of Machine Learning (ML). First in the field of New Physics (NP) searches at the LHC, where we are currently applying this unsupervised ML technique to find NP as emerging topics. Motivated by this powerful tool  we pursued the goal of sorting daily Arxiv papers in given field(s) according to individual user preference.
CSIC
14/02/2020 - 00/00/0000
The Arp299B-AT1 puzzle: First resolved imaging of a tidal disruption event
Sala Alberto Lobo (ICE building, UAB Campus)
Tidal disruption events (TDEs) are transient flares produced when a star is ripped apart by the gravitational field of a supermassive black hole (SMBH). While indirect evidence has pointed out that some candidates to being TDEs may have formed a relativistic jet, no direct imaging has confirmed this hypothesis.
CSIC
11/02/2020 - 00/00/0000
NoiseChisel and Gnuastro: non-parametric detection and analysis of astronomical targets
Sala Alberto Lobo (ICE building, UAB Campus)
Astronomical instrumentation has greatly advanced over the last 40 years: with digital detectors, space telescopes and +8m class ground-based telescopes for example. However, the signal-based detection paradigm (for example from Petrosian or Kron in the 1970s, mostly used as implemented in SExtractor from the mid-1990s) is still the dominant method of low-level data analysis: detection, segmentation and measurements or catalog production.
CSIC
07/02/2020 - 00/00/0000
The size of the universe
Sala Alberto Lobo (ICE building, UAB Campus)
Cosmic acceleration is telling us that Newton's gravitational law is different from the one we learn in school. I will show how this could imply that our universe is smaller than what we thought. This explains why vacuum energy does not gravitate and can also explain cosmic acceleration without the need dark energy or modified gravity.
UB
06/02/2020 - 00/00/0000
High energy neutrinos from active galactic nuclei
Seminari DAM (724, ICC building, UB Campus)
Despite intense inquiry, the sources at the origin of the high-energy neutrinos revealed by IceCube are still unknown. The potential correlation of an IceCube event with a flaring gamma-ray source has recently focused the attention on blazars, active galactic nuclei (AGN) with a relativistic jet pointing to the Earth.
Generalitat de CatalunyaUniversitat de BarcelonaUniversitat Autònoma de BarcelonaUniversitat Politècnica de CatalunyaConsejo Superior de Investigaciones CientíficasCentres de Recerca de Catalunya