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X-WR-CALNAME:Instituto de Astrofísica de Andalucía
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X-WR-CALDESC:Eventos para Instituto de Astrofísica de Andalucía
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260108T123000
DTEND;TZID=Europe/Paris:20260108T133000
DTSTAMP:20260406T064806
CREATED:20251110T094048Z
LAST-MODIFIED:20260107T104840Z
UID:28715-1767875400-1767879000@www.iaa.csic.es
SUMMARY:SO Colloquium - First reallistic modeling of dust in protoplanetary disks: perspectives for future observations
DESCRIPTION:First results on modeling of light scattering by non-spherical and porous dust particles in protoplanetary disks have been obtained after a fruitful collaboration between IAA and IRyA backed by SO program: Daniel Guirado visiting IRyA\, Carlos Carrasco and Miguel Jesús Jáquez visiting IAA and Gonzalo Vargas’ SO FPI. First paper produced by this collaboration has been recently submitted for publication: «Modeling (Sub)-Millimeter Scattering Properties of Fractal and Consolidated Porous Particles: Applications to Protoplanetary Disks» and second paper is ready for submission in a few days a the time of this application: «Exploring the millimeter emission spectrum and polarization of protoplanetary disks with irregular dust particles» \nA detailed characterization of dust evolution within protoplanetary disks is essential to uncover how planets form. Only in the past decade\, with the advent of high-resolution radio interferometers such as the VLA and ALMA\, have we been able to map dust distributions in these disks with unprecedented precision. Early observations revealed an unexpected diversity of substructures —including rings\, gaps\, and asymmetric patterns— indicative of the onset of planet formation and its dynamical impact on the disk. After surveying hundreds of disks across various star-forming regions\, we are now beginning to outline multiple evolutionary pathways that may lead to planetary systems with markedly different architectures. \nBased new results of light scattering in disks produced by this SO collaboration\, basic properties of the dust such as their mass or size can be updated. And new perspectives on observations that may lead us to find out new details on the movie of the evolution of disks are open. These future observations must be matched with modelling efforts. New technological achievements and instruments to be developed and in service very soon must be matched with these modelling efforts as well: ngVLA and SKA \nFecha y lugar: 08/01/2026 – 12:30 | Salón de ActosCarlos CarrascoIRyA-UNAM \n  \n  \n  \n 
URL:https://www.iaa.csic.es/evento/first-reallistic-modeling-of-dust-in-protoplanetary-disks-perspectives-for-future-observations/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios,SO Colloquium
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260113T123000
DTEND;TZID=Europe/Paris:20260113T133000
DTSTAMP:20260406T064807
CREATED:20251118T085849Z
LAST-MODIFIED:20260107T105027Z
UID:28793-1768307400-1768311000@www.iaa.csic.es
SUMMARY:Precise radial velocities with ESPRESSO: pushing the limit to 10 cm/s
DESCRIPTION:The ESPRESSO spectrograph\, mounted on the VLT\, was designed to achieve a long-term radial velocity (RV) precision of 10 cm/s\, enabling the detection of Earth-mass planets within the habitable zones (HZ) of their host stars. \nI present results from the instrument’s Guaranteed Time Observations campaign on three low-activity G\, K\, and M stars. We characterise the precision achievable from the timescales of minutes and dominated by pulsations\, to timescales of years as required for HZ planet detection. To achieve this\, we employ different RV calculation methods and activity indicators\, assessing the limiting factors of both instrumental precision and stellar RV stability. Using a comprehensive analysis\, we reach a RV floor level of 40 cm/s over a timescale of several years. \nInterestingly\, the ESPRESSO data shows no evidence for several previously announced planetary signals; we discuss the population of planets that\, while not directly observed\, remain consistent with ESPRESSO data. \nFinally\, we explore the stellar physical phenomena that can be studied to further improve RV precision and enhance our planet detection capabilities. This is key for the future precise RV campaigns as enabled by ESPRESSO and similar instruments. \nFecha y lugar: 13/01/2026 – 12:30 | Salón de ActosPedro FigueiraIAA-CSIC \n  \n 
URL:https://www.iaa.csic.es/evento/precise-radial-velocities-with-espresso-pushing-the-limit-to-10-cm-s/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260115T123000
DTEND;TZID=Europe/Paris:20260115T133000
DTSTAMP:20260406T064807
CREATED:20251118T090542Z
LAST-MODIFIED:20260116T125349Z
UID:28810-1768480200-1768483800@www.iaa.csic.es
SUMMARY:From cluster detection to galaxy alignment: an overview of SCALE with S-PLUS survey
DESCRIPTION:Galaxy clusters and groups are vital tools for exploring and understanding the Universe. \nThis presentation focuses on results based on the SCALE sample from the Southern Photometric Local Universe Survey (S-PLUS)\, including galaxy cluster detection\, membership estimation and characterization\, matching with eROSITA X-ray data\, and a detailed study of galaxy spatial alignments out to 6R200. \nWe discuss the purity and completeness of the resulting catalogs using X-ray comparisons\, potential biases introduced by the matching technique\, the preprocessing of galaxies associated with filaments\, and the parameters that enhance the alignment signal between brightest cluster galaxies (BCGs) and their satellite populations. Together\, these analyses demonstrate the potential of the S-PLUS survey for cluster identification and environmental studies. \nFecha y lugar: 15/01/2026 – 12:30 | Salón de ActosLia DoubrawaUniversity of Helsinki – Finland\, Universidade de São Paulo – Brazil \n  \n  \n  \n 
URL:https://www.iaa.csic.es/evento/from-cluster-detection-to-galaxy-alignment-an-overview-of-scale-with-s-plus-survey/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260119T130000
DTEND;TZID=Europe/Paris:20260119T140000
DTSTAMP:20260406T064807
CREATED:20260113T104959Z
LAST-MODIFIED:20260113T114250Z
UID:29103-1768827600-1768831200@www.iaa.csic.es
SUMMARY:High energy blazar physics in the Multi-Messenger context
DESCRIPTION:Active galactic nuclei (AGN) are among the most powerful sources in the Universe\, dominating the non-thermal energy output across nearly all electromagnetic bands. Understanding the mechanisms behind this emission\, such as accretion onto supermassive black holes\, particle acceleration\, magnetic field generation\, and shock formation in relativistic plasma\, is essential for interpreting high-energy and multi-messenger observations. These processes can be best probed through coordinated studies combining very-high-energy and high-angular-resolution observations. \nI will present recent results from polarization VLBI studies that trace jet formation\, acceleration\, and magnetic field structure in AGN on parsec scales. Our observations provide clear evidence for a net toroidal magnetic field in a current-carrying blazar jet. We also find that blazars viewed at extremely small angles to the line of sight can naturally resolve the long-standing «Doppler factor crisis\,» reconciling the low apparent jet speeds from VLBI with the high Doppler factors inferred from very-high-energy observations. \nOur results highlight the central role of relativistic beaming in shaping the gamma-ray and neutrino emission of blazars. This suggests that parent PeV-scale protons exhibit relativistic bulk motion and offers new constraints for models of their multi-messenger output. \nFecha y lugar: 19/01/2026 – 13:00 | Salón de ActosYuri KovalevMax Planck Institute for Radio Astronomy \n 
URL:https://www.iaa.csic.es/evento/high-energy-blazar-physics-in-the-multi-messenger-context/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260129T123000
DTEND;TZID=Europe/Paris:20260129T133000
DTSTAMP:20260406T064807
CREATED:20251201T092256Z
LAST-MODIFIED:20260123T095536Z
UID:28868-1769689800-1769693400@www.iaa.csic.es
SUMMARY:Fantastic PeVatrons and where to find them
DESCRIPTION:Cosmic rays with energies up to about 3 PeV corresponding to the ‘knee’ feature in the observed spectrum are believed to be of Galactic origin. There is however no indisputable evidence\, neither observational nor theoretical\, that Galactic sources can supply enough protons of these high energies. A long-standing paradigm constitutes that the bulk of Galactic cosmic rays at least at lower energies are produced in supernova remnants\, which is based mainly on the fact that supernova explosions can provide enough energy to explain the energy density of cosmic rays in the Galaxy. \nBut in recent years it becomes more and more evident that protons can reach PeV energies in supernova remnants only in some special and extreme cases. This together with recent discoveries (notably from the LHAASO experiment) of the gamma-ray emission at multi-PeV energies from a number of sources stimulated discussions of plausible alternatives among which compact massive star clusters and microquasars seem to be the most promising candidates. \nIn this talk I will discuss the current status of the search for PeVatrons from the perspective of theory and modeling focusing on capabilities of the supernova remnant paradigm also extending it to the supernovae explosions within compact stellar clusters. \nFecha y lugar: 29/01/2026 – 12:30 | Salón de ActosIurii SushchCentro de Investigaciones Energéticas\, Medioambientales y Tecnológicas (CIEMAT) \n 
URL:https://www.iaa.csic.es/evento/fantastic-pevatrons-and-where-to-find-them/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260129T190000
DTEND;TZID=Europe/Paris:20260129T200000
DTSTAMP:20260406T064807
CREATED:20260119T115918Z
LAST-MODIFIED:20260216T160811Z
UID:29143-1769713200-1769716800@www.iaa.csic.es
SUMMARY:Los eclipses en la ciencia y el conocimiento
DESCRIPTION:Amplias franjas de la Península Ibérica serán testigos este año 2026 y el siguiente\, 2027\, de sendos eclipses totales de Sol\, seguidos en 2028 por otro anular. Esta llamada “tríada ibérica de eclipses” es un conjunto de acontecimientos bastante singular. Los eclipses solares totales son acaso los sucesos astronómicos más espectaculares y que más han causado asombro y admiración en la humanidad. Son además\, una fuente de información no sólo astronómica sino también para otras disciplinas del conocimiento tanto científicas como no científicas. \nTras explicar brevemente qué es un eclipse y alguna de sus características distintivas\, la conferencia se centrará en los aspectos más destacables con los que los eclipses han contribuido a incrementar nuestro acervo cultural común. Desde su uso para determinar parámetros fundamentales para la navegación marítima en el siglo XVIII hasta la comprobación experimental de la Teoría de la Relatividad General\, pasando por la datación precisa de dinastías chinas\, la interrupción de guerras siglos antes de nuestra era\, detección de errores geofísicos en la velocidad de rotación de la Tierra\, o el descubrimiento de nuevos elementos químicos. \nFecha: 29/01/2026 – 19:00Conferenciante:  Jose Carlos del Toro IniestaFiliación:  Instituto de Astrofísica de Andalucía (IAA-CSIC) \n  \nEL CONFERENCIANTE \nJose Carlos del Toro Iniesta nació en Cartagena en 1960. Estudió Ciencias Físicas en las universidades de Granada (primer ciclo) y La Laguna (especialidad de Astrofísica). Es Profesor de Investigación del CSIC en el Instituto de Astrofísica de Andalucía. Es especialista en campos magnéticos solares y\, más específicamente\, en diagnósticos de luz polarizada en presencia de campo magnético\, aunque también ha trabajado en campos no estrictamente astrofísicos como Óptica de polarización e Historia de la Ciencia. \nSe doctoró en la Universidad de La Laguna en 1987 con una tesis dirigida por el Dr. M. Semel del Observatoire de Meudon (París\, Francia) y ha realizado una parte de su carrera en el Instituto de Astrofísica de Canarias\, incluyendo una estancia sabática en los Lockheed Palo Alto Research Laboratories (Palo Alto\, California\, EE.UU.). Desde 1998 forma parte de la plantilla del Instituto de Astrofísica de Andalucía (IAA-CSIC). Ha publicado más de doscientos trabajos científicos en revistas y actas de congresos especializados\, es editor de dos libros y es autor (2003) de otro titulado “Introduction to spectropolarimetry”\, que ha publicado Cambridge University Press. \nHa sido profesor de segundo ciclo en la Universidad de La Laguna y de tercer ciclo en dicha universidad\, en el Observatorio de Kanzelhöhe (Austria)\, en el Institute of Astronautical Sciences of Japan\, en la Universidad de Kioto (Japón)\, en el Instituto de Astrofísica de Andalucía (Granada)\, en el Instituto Nacional de Técnica Aeroespacial (Torrejón de Ardoz)\, en el Max-Planck Institut für Sonnensystemforschung (Alemania)\, en el Mullard Space Science Laboratory del University College (Londres) y en el High Altitude Observatory del Boulder (Colorado\, EEUU). Ha impartido unas 50 conferencias y seminarios científicos en cuatro continentes y otras tantas conferencias y artículos de divulgación en España. \nHa codirigido el desarrollo y construcción del magnetógrafo solar IMaX que voló en un globo estratosférico ártico dentro de la misión Sunrise\, colaboración entre la agencia espacial alemana (DLR)\, la norteamericana (NASA) y el Programa Nacional del Espacio (PNE) español. Es investigador asociado del equipo del instrumento AIA de la misión Solar Dynamics Observatory de la NASA. Ha sido\, así mismo\, coinvestigador principal del magnetógrafo SO/PHI para la misión Solar Orbiter de la ESA y del magnetógrafo PMI para la misión espacial Vigil\, también de la ESA. Ha sido investigador principal del magnetógrafo TuMag y coinvestigador principal del espectropolarímetro SCIP\, ambos para la tercera edición de la misión estratosférica Sunrise. \nHa sido director del Instituto de Astrofísica de Andalucía (CSIC) desde 2004 hasta 2007 y Gestor Nacional del área de espacio del Plan Estatal de Investigación\, Desarrollo e Innovación desde enero de 2017 hasta 2019. \n  \n 
URL:https://www.iaa.csic.es/evento/los-eclipses-en-la-ciencia-y-el-conocimiento/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Conferencias Lucas Lara
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