Programa

Programa

Mara Salvato: eROSITA: Insights on the hot and energetic Universe

Resumo: eROSITA was successfully launched on board the Russian-German "Spectrum-Roentgen-Gamma" (SRG) satellite on July 13th 2019. With this instrument we wanted to: 1) detect the hot intergalactic medium of more than 100,000 galaxy clusters and groups and the hot gas in filaments between clusters to map out the large-scale structure of the Universe for the study of cosmic structure evolution; 2) detect systematically all obscured accreting Black Holes in nearby galaxies and many (up to 3 Million) mostly new distant active galactic nuclei, and 3) study in detail the physics of galactic X-ray source populations, like pre-main sequence stars, supernova remnants, and X-ray binaries. In total, eROSITA will map the entire sky 8 times, and while 4 passes have been already completed, we are preparing for the release of all data related to the first pass (eRASS:1, about 8 times deeper than the predecessor ROSAT), planned for Spring 2023. In my talk, I will highlight how eROSITA is already changing what we know about the hot and energetic Universe.

Para saber mais sobre o eROSITA: https://www.mpe.mpg.de/eROSITA

Silvia Bonoli: J-PAS: The Universe in 56 colors

Resumo: The Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) is about to start scanning thousands of square degrees of the northern sky with the JPCam camera, currently in the last phases of commissioning on the 2.5m Javalambre Survey Telescope of the OAJ observatory. J-PAS will feature 56 narrow-band filters, effectively offering a low-resolution spectrum for every object detected. Before JPCam started operations, we used an interim camera to observe with all the J-PAS filters one sq. deg on the AEGIS field, along the Extended Groth Strip. The data of this smaller project, referred to as miniJPAS, have been used to test the potential of J-PAS across a wide range of scientific cases, from the study of nearby galaxies to quasars, from clusters to multiple tracers for the study of the large scale structure. In this talk, I will present the main results of miniJPAS and will give prospects for the upcoming J-PAS, showing the power of wide narrow-band surveys.

Para saber mais sobre o J-PAS: http://j-pas.org/

Rebecca Bernstein: GMT: The Giant Magellan Telescope

Resumo: (A ser confirmado)

Para saber mais sobre o GMT: https://giantmagellan.org/

Roberto Maiolino: The Extremely Large Telescope and the ANDES spectrograph

Resumo: (A ser confirmado)

Para saber mais sobre o ANDES/ELT: https://elt.eso.org/instrument/ANDES/

Michaela Kraus: Physics of extreme massive stars (POEMS) - new challenges to stellar evolution

Resumo: Massive stars are powerful cosmic engines. Throughout their life-time they enrich their environment with huge amounts of energy and with chemically processed material. The energy released is so powerful that it can trigger the formation of new generations of stars and planets, and the chemical elements produced inside these stars and released to their environment via winds and eruptions are the building blocks of all life as we know it on Earth. Despite the importance of massive stars for cosmic evolution, their aging process from the cradle up to their death in spectacular supernova explosions is most uncertain. This is due to the lack of precise knowledge of the physical mechanisms behind mass eruptions that occasionally occur during various late phases in the evolution of massive stars, and due to the high uncertainties in reliable values of the total amount of mass the star loses during each epoch of its life. In my talk, I will present our project POEMS - Physics of Extreme Massive Stars, which focuses on some of the longstanding problems in massive star evolution. This project is solved by a multidisciplinary, international consortium with members from Europe, Argentina, Brazil, and Chile. I will present the project, its current status and future perspectives.

Para saber mais sobre o POEMS: https://stelweb.asu.cas.cz/~kraus/POEMS/

Željko Ivezić: Rubin Observatory's LSST: The Greatest Movie of All Time

Resumo: The Legacy Survey of Space and Time (LSST), the first project to be undertaken at the new Vera C. Rubin Observatory, will be the most comprehensive optical astronomical sky survey ever undertaken. Starting in about two years, Rubin Observatory will obtain panoramic images covering the sky visible from its location in Chile every clear night for ten years. Close to a thousand observations of each position across half of the celestial sphere will represent the greatest movie of all time: it would take 11 months of uninterrupted viewing to see it! About 20 billion galaxies and a similar number of stars will be detected using this 60 petabyte image dataset — for the first time in history, the number of cataloged celestial objects will exceed the number of living people. LSST data will be used for investigations ranging from cataloging dangerous near-Earth asteroids to fundamental physics such as characterization of dark matter and dark energy. I will briefly describe scientific goals behind this project, show lots of pretty pictures to illustrate the progress of its construction, and finish with a discussion of data analysis challenges that need to be tackled to make the best use of LSST data.

Para saber mais sobre o LSST: https://www.lsst.org/

Heike Rauer: The PLATO Mission

Resumo: PLATO (PLAnetary Transits and Oscillations of stars) is ESA's M3 mission, scheduled for launch at the end 2026. PLATO will provide high-precision, long-term photometric and asteroseismic data of a large number of stars to detect and characterize extrasolar planets, including terrestrial planets in the habitable zone of solar-like stars. PLATO will characterize planets in its core sample (V < 11) for their radius via the transit method and determine their masses via ground-based radial-velocity follow-up. Asteroseismology will provide precise ages of planet host stars. A large sample of stars with V < 13 will provide statistical information on detected exoplanets of all kinds. The PLATO database of characterized planets will form a solid basis to put the Solar System into a wider context and allow for comparative exo-planetology. In addition, the precise stellar parameters obtained by asteroseismic studies will open new doors to better understand stellar interiors and allow us to constrain poorly-understood physical processes, like convection, improve our understanding of stellar evolution, and determine precise ages of stars and planetary systems. The PLATO instrument consists of 24 cameras on a common optical bench with a total field-of-view (FoV) of about 2150 deg², operating in white light. Two additional cameras serve as fine-guidance sensors and observe very bright stars (V < 8.5) in red and blue light, respectively. A guest observer program open to the community upon an ESA call will allow observing additional targets in the PLATO FoV. The lecture will present an overview of the mission and its science goals.

Para saber mais sobre o PLATO: https://platomission.com/