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SUMMARY:Academic Spanish Course for Foreigners (2025)
DESCRIPTION:The Academic Spanish course for foreigners is designed to facilitate effective communication in academic and profesional contexts. Through a practical and personalized focus\, the participants will develop essential linguistic abilities to discuss scientific articles\, participate in conferences\, give presentations\, and collaborate in international projects. The program includes technical vocabulary\, beginner and advanced grammar\, and simulations of real-life situations. Moreover\, it will promote the cultural immersion to strengthen the comprehension of the Hispanic world\, and their impact on interdisciplinary investigation and collaboration. \nThis course will be taught throughout in the following blocks: \nJanuary 21st – February 27thApril 22nd – May 29thSeptember 23rd – October 30thThe course is taught by Prof. Nazira Ruíz
URL:https://www.iaa.csic.es/evento/academic-spanish-course-for-foreigners-2025/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:SO Training
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DTSTART;TZID=Europe/Paris:20250311T123000
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SUMMARY:J-HERTz: J-PLUS Heritage Exploration of Radio Targets at z < 5
DESCRIPTION:In this talk\, I will present J-HERTz\, the J-PLUS Heritage Exploration of Radio Targets at z < 5\, a multi-wavelength catalog combining LoTSS DR2 radio data\, WISE infrared detections\, and J-PLUS DR3 optical narrow-band observations. Covering 2100 deg²\, J-HERTz includes nearly 500\,000 sources\, classified into galaxies\, QSOs\, and stars\, along with new photometric redshifts for objects without spectroscopy. \nA key discovery is a population of radio-loud galaxies with no ongoing nuclear activity\, many of which show large-scale radio emission (~185 kpc)\, suggesting they are AGN relics revealed at low radio frequencies. Using SED fitting from J-PLUS with CIGALE\, we analyze the link between radio-loudness\, stellar mass\, and star formation. Radio-loud galaxies tend to be massive and quenched\, while radio-quiet starbursts have much higher specific star formation rates. \nFor QSOs\, we find a bimodal distribution of radio-loud and radio-quiet populations\, with the radio-loud fraction increasing with redshift\, reaching ~20% at z = 3.5-4. Additionally\, J-HERTz identifies stars with radio emission\, which may be linked to coronal activity or exoplanet interactions\, though background contamination must be considered. \nBy combining optical\, IR\, and radio data\, J-HERTz provides new insights into AGN evolution\, jet activity\, and the nature of radio sources across cosmic time. I will discuss the implications of these findings and their connection to galaxy evolution. \nFecha: 11/03/2025 – 12:30Conferenciante: David Fernández GilFiliación: CEFCA\, Teruel\, España \n 
URL:https://www.iaa.csic.es/evento/j-hertz-j-plus-heritage-exploration-of-radio-targets-at-z-5/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios
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