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DTSTART;TZID=Europe/Paris:20231116T123000
DTEND;TZID=Europe/Paris:20231116T133000
DTSTAMP:20260405T182124
CREATED:20231109T160244Z
LAST-MODIFIED:20250912T071036Z
UID:19786-1700137800-1700141400@www.iaa.csic.es
SUMMARY:SO Colloquium: The evolution of the accretion process: investigating the protostellar phase to constraints planet formation
DESCRIPTION:The accretion process is responsible for the mass building during the star formation phase\, but our knowledge of this phenomenon is still not totally understood. On one side\, the magnetospheric accretion scenario describes the accretion on pre-main sequence (Class II/III) low-mass stars. However\, most of the material is supposed to be accreted during the earliest stages\, i.e. the protostellar phase (Class 0/I)\, when the forming star and its disk are embedded into a dusty envelope. The presence of the envelope and short lifetimes make the observations of these sources and their analysis challenging\, preventing us from testing this and other scenarios during the early stages. On the other hand\, the Gaia data alert project is increasing the number of the so-called «eruptive sources» (FUor\, EXors..)\, which were thought to represent only an exception in the accretion paradigm\, suggesting their presence in the stellar mass building to be more important than we thought. In the last decade\, thanks to new instruments and analysis techniques\, we’re starting to unveil the secrets of accretion on low-mass protostars\, finding many similarities between these sources and the eruptive stars and finally being able to provide quantitative information about accretion parameters during the overall star formation evolution. In this talk I will present the most recent results about the stellar mass building during the early stages and how they impact the planet formation. \nFecha: 16/11/2023 – 12:30Conferenciante: Dr. Fiorellino\, EleonoraFiliación: Istituto di Astrofisica e Planetologia Spaziali di Roma and Istituto Nazionale di Astrofisica \n 
URL:https://www.iaa.csic.es/evento/mosaic-the-high-multiplex-and-multi-ifu-spectrograph-for-the-elt/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:SO Colloquium
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20231123T123000
DTEND;TZID=Europe/Paris:20231123T133000
DTSTAMP:20260405T182124
CREATED:20231109T162054Z
LAST-MODIFIED:20250911T092822Z
UID:19809-1700742600-1700746200@www.iaa.csic.es
SUMMARY:SO Colloquium: The transition between super-Earths and sub-Neptunes: Interior and atmosphere modelling of the low-mass planet population
DESCRIPTION:Low-mass exoplanets are showing a diversity in their densities\, ranging from silicate-dominated super-Earths to volatile-rich sub-Neptunes. We have developed a coupled interior-atmosphere model that estimates the composition and interior structure of super-Earths and sub-Neptunes assuming water and CO2 atmospheres. The applications of the model include the homogenous analysis of a sample of multi-planetary systems\, as well as the assessment of the observability of emission spectra for rocky exoplanets with the James Webb Space Telescope. I will explain how their compositions connect to their possible formation site in the protoplanetary disk and their formation mechanisms\, including atmospheric escape\, and how we can break degeneracies with new atmospheric characterisation data. \nFecha: 23/11/2023 – 12:30Conferenciante: Dr. Lorena AcuñaFiliación: Max-Planck-Institute for astronomy\, Germany \n 
URL:https://www.iaa.csic.es/evento/so-colloquium-the-transition-between-super-earths-and-sub-neptunes-interior-and-atmosphere-modelling-of-the-low-mass-planet-population/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios,SO Colloquium
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20231130T123000
DTEND;TZID=Europe/Paris:20231130T133000
DTSTAMP:20260405T182124
CREATED:20231127T084519Z
LAST-MODIFIED:20250911T092808Z
UID:20033-1701347400-1701351000@www.iaa.csic.es
SUMMARY:SO Colloquium: Studying star-formation in 'collisional' galaxies with MUSE
DESCRIPTION:Galaxies in pre- and post-collisional stages are an excellent laboratory to study the evolution of galaxies\, particularly the triggering and suppression of star formation on galactic scales before and after such interactions. In order to analyze the star formation triggered in these systems\, we started a series of studies on ‘collisional’ galaxies with available integral field spectroscopy (IFS) observations. We use Very Large Telescope (VLT) Multi-Unit Spectroscopic Explorer (MUSE) observations to study the young star cluster complexes and H ii regions in the Antennae\, Cartwheel\, and the double-ring collisional galaxy AM 0644-741. MUSE datacubes offer the opportunity to address several problems that are particular to these galaxies\, such as studying the ionizing mechanisms and the chemical abundances in the star cluster complexes hosted in the H ii regions. IFS data also offers an opportunity to unveil the presence of populations of Wolf-Rayet stars and the sources of high ionization potential emission lines (e.g.\, He II 4686) in the nearby universe. We present our recent findings in this seminar. \nFecha: 30/11/2023 – 12:30Conferenciante: Dr. Victor Mauricio A. Gómez GonzálezFiliación: Institute for Physics and Astronomy\, University of Postdam\, Germany \n 
URL:https://www.iaa.csic.es/evento/so-colloquium-studying-star-formation-collisional-galaxies-muse/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios,SO Colloquium
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