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The e-ROSITA X-ray observatory detects for the first time the 'fireball' of a stellar explosion
A research team led by the Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and of which Glòria Sala, a researcher at the UPC Astronomy and Astrophysics Group and the Institute for Space Studies of Catalonia (IEEC), is a member, has been able to observe, for the first time, an explosion of X-ray light. The study is featured on the cover of the journal Nature.
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The new research on intrinsic correlation between the fraction of liquid-like zones and the beta-relaxation in high-entropy metallic glasses
Researchers Y. J. Duan, E. Pineda and D. Crespo, from the Group of Materials Characterization of the UPC, have made new progress to understand the mechanical properties of high-entropy metallic glasses. The work clarifies the correlation between the fraction of liquid-like zones, i.e. the fraction of atoms that can easily rearrange under the effect of external forces, and the secondary or β relaxation observed in these materials. Besides, the work reveals the high-entropy effect on the supercooled liquid dynamics of the metallic melt.
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The study of the color of enamels and historical glasses colored by copper and iron
Mingyue Yuan defended his thesis directed by Trinitat Pradell Cara on 17th of November at Campus Diagonal Besos. Entitled "Historical copper and iron colored glazes and glasses", the thesis presents an understanding of the mechanisms of coloring and compositional differences in historical enamels and glasses, and offers valuable information on ancient glassmaking technologies.
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Thesis with key insights on climate change is defended in the C&AP Ph.D. program
Dario Zappalà defended his work last April on air temperature dynamics and climate change under the direction of Cristina Masoller in the Nonlinear Dynamics, Nonlinear Optics and Lasers group.
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Understanding the oldest stars in the Milky Way
A study led by UPC/IEEC has determined for the first time the mass and radius of one of the oldest stars in our Galaxy, allowing to validate the theoretical relationship between the mass and radius for this class of stars. Alberto Rebassa, a physics professor from our department in the group Astronomy and Astrophysics, has led the study.
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Unmasking the microscopic fingerprint in finite-temperature features of a one-dimensional Bose gas
A team of researchers from UPC in Barcelona and EPFL in Lausanne built a new theory to explain the finite-temperature properties in terms of microscopic excitations of bosons in one dimension
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UPC news picks up key astrophysical discovery made in the department
The undergraduate project done by Martí Perpinyà in Physical Engineering, under the direction of Alberto Rebassa and Jordi José, has discovered the first system of three white dwarfs. The UPC news picks up the report hoping it will reach a general audience
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Viktor Cikojević defended his thesis on the study of ultracold atomic mixtures
Viktor Cikojević defended his thesis co-directed by Leandra Vranješ Markić and Jordi Boronat on April 20th 2021 at Campus Diagonal Nord, titled "Ab-initio Quantum Monte Carlo study of ultracold atomic mixtures". The thesis presents a systematic study of self-bound quantum droplets in a Bose-Bose mixture, employing techniques of Quantum Monte Carlo and Density Functional Theory.
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Vrinda Krishnakumar defended her thesis on the exploitation of the PSInSAR technique with Sentinel-1 data for the measurement of ground movements
Vrinda Krishnakumar defended her thesis directed by Dr. Oriol Monserrat on September 29. The defense was online. Entitled "Sentinel-1 data exploitation for terrain deformation monitoring", the thesis presents a series of diverse approaches to the PSInSAR technique focused on the maximum use of the characteristics of Sentinel-1 SAR satellites for the measurement of terrain movements
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Xavier Navarro Bosque defends his thesis on the spatial and temporal organization of rain in the metropolitan area of Barcelona
Xavier Navarro Bosque defended his thesis co-directed by Raül Rodríguez Solà and M. Carmen Casas Castillo on March 17 at the Vilanova i la Geltrú Campus. Titled "Spatial and temporal organization of rain in the metropolitan area of Barcelona", the thesis presents a complete study on rain in the city of Barcelona that includes the updating of its intensity-duration-frequency curves and the its areal reduction factors, the kinematic monitoring of storms over the city, and the possible effects of climate change on extreme intensities.
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