Headlines and events archive

Displaying 651 - 700 of 1537

You may also find an archive of news published in the media which are related with the Instituto de Astrofísica de Andalucía - CSIC.



Pages

Low temperature plasma 15/07/2013
Granada hosts a high level international scientific summit on low-temperature plasma
The International Conference on Phenomena in Ionized Gases (ICPIG) is bringing together over five hundred researchers in Granada this week  
04/07/2013 - 14:30
The ALHAMBRA survey: First Data Release.
The ALHAMBRA (Advance Large Homogeneous Area Medium Band Redshift Astronomical; Moles et al. 2008) survey has observed 8 different regions of the sky, including sections of the COSMOS, DEEP2, ELAIS, GOODS-N, SDSS and Groth fields using a new photometric system with 20 contiguous, ~300A width, filters covering the optical range, plus deep JHKs imaging. The observations, carried out with the Calar Alto 3.5m telescope using the wide field...
Alberto Molino
27/06/2013 - 14:30
CALIFA
tbd
Dr. Sebastián Sánchez
20/06/2013 - 14:30
El Universo de Planck
Recientemente se han presentado los resultados cosmológicos de la misión espacial Planck. Es un buen momento para poner al día el valor de los parámetros del Universo. La nueva composición se resume en 26.8% materia oscura, 4.9% materia visible, 68.3% energía oscura. El valor de la constante de Hubble ha resultado también muy inferior a lo esperado: 67.5 km/(s Mpc). La conclusión m...
Prof. E. Battaner
13/06/2013 - 14:30
Love for Science or 'Academic Prostitution'?
Note: This is a seminar given at the European Research Council Headquarter some weeks ago. It was focused on the expected audience, members of the ERC directly involved in setting the rules for Grants evaluation and/or participate in all steps of the process, mainly Scientific Officers, but also Agency staff. I have decided to present the talk as it was presented there. Abstract: In a recent Special issue of Nature concerning Science...
Dr. Lourdes Verdes-Montenegro
06/06/2013 - 14:30
PAH's in Titan's Upper Atmosphere
Observations of Titan's atmosphere made with the VIMS instrument on board the Cassini satellite show a strong limb emission around 3.3 µm at high atmospheric altitudes (above 700 km). This emission exhibits the typical spectral signatures of the strong CH4 bands. A detailed analysis of the spectra reveals, however, an additional strong emission centered at 3.28 µm and peaking at about 950 km. We have untangled this spectral...
Prof. Manuel López-Puertas
26/05/2013 - 15:00
Estudio multi-frecuencia de las historias de formación estelar espacialmente resueltas de galaxias en el cartografiado de campo integral CALIFA.
¿Por que estudiar las poblaciones estelares? Los diferentes procesos evolutivos dejan un registro fósil diferente en las propiedades de población estelar de las galaxias. Un metodo muy potente que permite estudiar la formación y evolución de las galaxias consiste en reconstruir la historia de formación estelar a través de las propiedades de las estrellas que las forman. Actualmente se utiliza la técnica de síntesis evolutiva para inferir las...
Rafael López Fernández Otra
23/05/2013 - 14:30
Extreme emission-line galaxies: New light on the mass assembly and chemical enrichment of low-mass galaxies
Galaxies showing early and significant stages of mass assembling are key objects for understanding galaxy evolution. However, young starbursts like these are extremely rare in the local Universe. In this context, a unique population of compact, low-mass galaxies forming stars at unusually high rates - also known as the "green peas" - emerge now as ideal laboratories to study the details of massive star formation, feedback and...
Dr. R. Amorin
16/05/2013 - 14:30
Hall motions and star escape in galactic dynamics in the Hill approach
The motion of a galactic cluster is approximately described by those equations in a co-moving frame, introduced by Hill in the XIXth century. Individual motions can only studied numerically, but  for the center of mass interstellar gravitational forces drop out and one is left with a simply system analogous to those considered by Hall for a planar electron in crossed electric and magnetic fields. In both cases, the motion of the COM is...
Dr. P. Horvathy
09/05/2013 - 14:30
The IAA COsmic DUst LABoratory, a lab next door (building).
MAIN GOALS of this talk: 1. Let you know/remind you that the IAA has a worldwide reference light scattering laboratory for experimentally studying the angular dependence of the scattering matrices of dust samples of astrophysical interest. 2. Convince the audience of: - Polarization is highly valuable tool for retrieving information on the physical properties of small cosmic dust particles. - How useful laboratory measurements...
Dr. O. Muñoz
25/04/2013 - 14:30
X-raying born-again planetary nebulae
Planetary nebulae have been a addition to the zoo of X-ray-emitting sources. Here I present results on a the very particular class of born-again planetary nebulae, those whose central star has experienced a helium shell flash during the lifetime of the planetary nebula. The interaction of the fast stellar wind of the central star with hydrogen-poor material ejected during the born-again episode provides a unique case to study...
Dr. M. Guerrero
22/04/2013 - 26/04/2013
HOPS Spring Meeting
Granada
18/04/2013 - 14:30
The Shortest-Known–Period Star Orbiting Our Galaxy’s Supermassive Black Hole
Stars with short orbital periods  at the centre of our Galaxy offer a powerful and unique probe of the nearest supermassive black hole. Observing these stars is a long-term astrophysical experiment that has been going on for two decades. In this talk I will outline this project and discuss the observational challenges and the strategies to overcome them. Steady technological and methodological advances allow us to improve...
Dr. Rainer Schoedel
17/04/2013 - 15:00
A strong recollimation shock far from the core of the radiogalaxy 3C120
Which could be the mechanism for the production of moving and stationary components in AGN jets? How is it possible that a stationary component appears to be composed by subcomponents moving at superluminal speeds? The AGNs are a special class of galaxies that show an unusual amount of emission. The responsible of this emission is a supermassive black hole () that accretes matter from a hot rotating disk, leading to the formation of ultra...
Carolina Casadio Otra
11/04/2013 - 14:30
CALIFA: The spatially resolved Star Formation History of Galaxies
The Calar Alto Legacy Integral Field Area (CALIFA) is an ongoing 3D spectroscopic survey of 600 nearby galaxies of all kinds. This pioneer survey is providing valuable clues on how galaxies form and evolve. Processed through spectral synthesis techniques, CALIFA datacubes allow us to, for the first time, spatially resolve the star formation history of galaxies spread across the color-magnitude diagram. The richness of this approach is already...
Dr. R. González Delgado
04/04/2013 - 14:30
Probing Galaxy-Scale Halos and Large-Scale Structure with Weak Gravitational Lensing
The presence of dark matter in the Universe is well-established and contributes significantly to structures ranging from galaxies to superclusters. However, the details of the connection between luminous galaxies and the dark matter halos in which they reside are not particularly well-characterised. Weak gravitational lensing is the only direct probe that can measure the total mass profile associated with galaxies over a wide range of radii...
Dr. Ami Choi
21/03/2013 - 13:30
The Javalambre-PAU Astrophysical Survey
  The Javalambre-PAU Astrophysical Survey (J-PAS) is a very wide field Cosmological Survey to be carried out from the Javalambre Observatory in Spain with a purpose-built, dedicated 2.5m telescope, using a set of 54 narrow band and 5 broad band filters over a 1.3Gpix, 5deg2 FOV camera. Starting in early 2015,  J-PAS will image 8500deg2 of Northern Sky and obtain 0.003(1 + z) precision photometric...
Dr. N. Benitez
19/03/2013 - 16:00
Martian dust (analogs) in Scattering Laboratory
Laboratory in Institute of Astrophysics? Doesn´t it sound a bit strange? What can be measured there? How can it be applied in Astrophysics? During my CCD talk I would like to respond those and another questions. Firstly, I will make a breve introduction into The Scattering Laboratory called as well Cosmic Dust Laboratory ubicated in UDIT. And then I will talk you about the subject I work on- The Scattering on Martian Dust Analogs. Dust...
Dominika Dabrowska Otra
14/03/2013 - 13:30
Towards a general classification of atmospheric waves on Venus
The atmospheric superrotation of Venus goes on being a puzzling phenomenon in the Solar system and is still considered an open problem in geophysicalfluid dynamics. A general agreement exists among numerous works concerning the main role that atmospheric waves should have in the generation and maintenance of the superrotation, although most of them try to study the impact of the waves with complex GCMs or using adapted terrestrial dispersion...
Dr. Javier Peralta Calvillo
06/03/2013 - 13:30
Hot Intergalactic Gas in Clusters of Galaxies
Clusters of galaxies are the most massive objects in our Universe. Each of them contains dark matter, thousands of galaxies and is filled with hot intergalactic gas radiating in X-rays. Unusual method to detect clusters of galaxies is possible due to presence of extremely isotropic Cosmic Microwave Background Radiation (CMB) filling our Universe. Interaction of hot electrons with CMB photons changes the CMB spectrum in the...
Prof. Rashid Sunyaev
27/02/2013 - 16:00
¿Por qué estos !!! de GRBs me interrumpen las observaciones?
¿Quién no ha estado tranquilo y feliz en un observatorio y de repente alguien llama por teléfono solicitando una observación urgente de una contrapartida óptica de un GRB? Correcto, a mí me pasó en unas prácticas de la universidad... y no por ello les odié... más bien atrajeron mi curiosidad y... finalmente, a mi. En esta charla daré una pequeña introducción a las características observacionales de los GRBs y sus afterglows, así como de sus...
Rubén Sánchez Otra
27/02/2013 - 13:30
Mysteries and Discoveries from the Chandra Planetary Nebulae Suvery (ChanPlaNS)
Chandra observations of planetary nebulae (PNe) have ushered in a new wave of discoveries and mysteries in this class of evolved stars. The X-ray emission from PNe comes in two flavors: compact sources in the vicinity of the central star and extended sources that fill the nebular cavities generated during the PN formation process. The latter variety, called hot bubbles, are chemically-enriched with helium shell burning products (C, O, and Ne...
Dr. Rodolfo Montez
21/02/2013 - 13:30
Local tadpole galaxies and cold-flows
Extremely metal poor galaxies are primitive objects attending to their chemical evolution. For reasons not well understood, they tend to have cometary or 'tadpole' morphology, with a bright peripheral clump ('the head') on a faint tail. Tadpole galaxies are rare in the nearby universe but turn out to be very common at high redshift, where they are usually interpreted as disk galaxies in early stages of assembling. If this...
Dr. Jorge Sánchez Almeida
14/02/2013 - 13:30
Our Central Organization: Structure and Duties
More than 130 research centres and institutes, the IAA among them, belong to the Spanish Research Council (CSIC). The management of the Council is carried out by the Central Organization, in Madrid. With this talk I want to give an overview of the structure of our Central Organization and of the duties of its members.
Matilde Fernández Hernández
07/02/2013 - 13:30
Bajo un mismo cielo
"Bajo un mismo cielo” (“Under the same sky”) tells the story of the trip undertaken in 2009 by GalileoMobile. In a road trip that lasted two months and traveled around seven thousand kilometers, GalileoMobile visited schools and communities in Chile, Bolivia, and Peru to perform science activities and organize astronomical observations. Through children's eyes, an encounter from different visions and...
William Schoenell
31/01/2013 - 13:30
IAA: its Structure, Failures and Potential
In this talk I will first show the structure of our Institute, the task division and the people responsible for these taks. I will also analyse all the procedures, customs and usages that drift us apart from the dream IAA. Finally, I will make some remarks about the (underestimated? disregarded?) potential of our Institute.
Matilde Fernández Hernández
24/01/2013 - 13:30
Magnetic Effects and ovsersized M Dwarfs in the Young Open Cluster NGC 2516
By combining rotation periods with spectroscopic determinations of projected rotation velocity, Jackson, Jeffries & Maxted (2009) have found that the mean radii for low-mass M-dwarfs in the young, open cluster NGC 2516 are larger than model predictions at a given absolute I magnitude or I - K color and also larger than measured radii of magnetically inactive M-dwarfs. The relative radius difference is correlated with magnitude, increasing...
James MacDonald
17/01/2013 - 13:30
Results from a stellar occultation by the dwarf planet Makemake
Pluto and Eris are icy dwarf planets with nearly identical accurately measured sizes, comparable densities, and similar surface compositions. Their different albedos and current distances from the Sun are likely reasons why Pluto possesses an atmosphere whereas Eris does not. Makemake, another icy dwarf planet with a similar spectrum to Eris and Pluto is currently at intermediate distance to the Sun between the two. Makemake’s size and...
José Luis Ortiz
13/12/2012 - 18:00
The P91 ESO OPC Meeting - What Matters in an ESO Proposal
I will give a brief summary of information obtained during my participation in the 91st meeting of the ESO Observing Programmes Committee, including the current and future availability of ESO instruments and telescopes and pending changes in ESO instrumentation. I will also briefly explain the proposal evaluation procedure and give you some tipps on how to write proposals for ESO time.
Rainer Schoedel
29/11/2012 - 13:30
Searches for young stars in the central region of our Galaxy
Star formation processes at the Galactic Center (GC) could differ significantly from the rest of the Milky Way because of factors like the high pressure and turbulence of the ISM, strong magnetic fields, and the presence of the supermassive black hole (SMBH). Understanding star formation in this region is interesting not only in it own right, but also as a  template for other galactic nuclei. Here I present results of three different...
Shogo Nishiyama
28/11/2012 - 16:00
What is going on in comets?!
Os hablaré del apasionante mundo de la investigación cometaria. ¿Qué son?,¿de dónde vienen?, ¿son realmente peligrosos?, ¿Por qué estudiarlos?, ¿qué información pueden aportar?, ¿qué hace nuestro grupo y por qué?
Fran Pozuelos Otra Sala de reuniones NE
31/10/2012 - 16:00
Properties and evolution of internetwork magnetic fields inside supergranular cells
To understand the formation of small-scale magnetic fields in the quiet Sun and their contribution to the solar activity, it is essential to investigate the properties and evolution of internetwork magnetic fields. Using Hinode/NFI line-of-sight magnetograms of very high sensitivity (6 Mx/cm^{2}), spatial resolution (0.16 arcsec/pixel), and cadence (90 s), we follow the evolution of magnetic elements inside of a supergranular cell located at...
Milan Gosic Sala de Reuniones del Nuevo Edificio (IAA-CSIC)
26/10/2012 - 14:00
QSO outflows
The study of AGN feedback processes on the evolution of their host galaxies and their environments is a field of growing importance in the past years. One of the feedback mechanisms identified is high-velocity outflows in QSOs. In this talk, some results are presented based on observations of several QSOs, aimed to determine the importance of these outflows as feedback mechanisms.
J.Ignacio González Serrano
18/10/2012 - 14:30
Cosmological Challenges of Dwarf Galaxies
A prime challenge to our understanding of galaxy formation concerns the scarcity of dwarf galaxies compared with the numerous low-mass halos expected in the current ΛCDM paradigm. This is usually accounted for by assuming that energetic feedback from evolving stars confines dwarf galaxy formation to relatively massive halos spanning a narrow mass range. I will highlight a number of observations that may be used to test this assumption...
Julio Navarro
04/10/2012 - 14:30
Hydrodynamical Models of Core-Collapse Supernovae
A set of hydrodynamical models applied to stellar evolutionary progenitors is used to study the nature of core-collapse supernovae (SNe).  For the type IIb SN 2011dh, our modeling suggests that a large progenitor star---with R ~200 R_sol--- is needed to reproduce the early light curves. This is consistent with the suggestion that a yellow super-giant star detected at the location of the SN in deep pre-explosion images is the progenitor...
Melina Bersten
27/09/2012 - 14:30
ASTRONET, a comprehensive long-term planning for the development of European astronomy
ASTRONET was created by a group of European funding agencies, including the Spanish ministry, in order to establish a strategic planning mechanism for all of European astronomy. It covers the whole astronomical domain, from the Sun and Solar System to the limits of the observable Universe, and from radioastronomy to gamma-rays and particles, on the ground as well as in space. ASTRONET aims to engage all astronomical communities...
Jesús Gallego
26/09/2012 - 15:00
Ciencia digital transparente: más allá de la automatización
La ciencia que se realiza en Astronomía es ciencia digital: cada uno de los elementos y acciones que intervienen en la producción científica podría registrarse en soporte electrónico. Este hecho no impide que el resultado final de un experimento sea aún difícil de reproducir, incluso para el propio autor. La reproducibilidad es uno de los pilares del método científico. En esta charla describiré el trabajo que estamos realizando en el grupo AMIGA...
José Enrique Ruiz Sala de Reuniones del Nuevo Edificio (IAA-CSIC)
19/07/2012 - 14:00
A deeper look on thick discs using data from the Spitzer Survey of Stellar Structure in Galaxies (S4G)
Thick discs are disc-like components with a scale height larger than that of the classical discs. They are  most easily detected in close to edge-on galaxies in which they appear as a roughly exponential excess of light which appears a few thin disc scale heights above the midplane. Their origin has been considered mysterious until recently and several formation theories have been proposed. Unveiling the origin of thick discs is...
Sébastien Comerón
13/07/2012 - 14:00
Jets de Estrellas Jóvenes: Teoría
En los últimos años ha habido un gran esfuerzo en la construcción de modelos teóricos que nos permitan entender y explicar distintos aspectos de los jets producidos por estrellas en su vida temprana. Algunos de estos aspectos son: su mecanismo de producción y colimación, la generación de nudos en su interior y la interacción con el medio circundante. En este trabajo se...
Jorge Cantó
05/07/2012 - 14:00
Infraestructuras de cálculo en el Instituto de Astrofísica de Andalucía (IAA): pasado, presente y futuro.
Actualmente el IAA dispone de una gran infraestructura de cálculo, la conocida Sala Grid, que alberga 32 nodos IBM x3950M2 con un total de 128 procesadores Intel Xeon Quad Core 2.93GHz (512 cores), 4 TeraBytes de memoria RAM, y una capacidad de almacenamiento total de 315 TeraBytes, todo ello interconectado con tecnología de red Infiniband a 20Gbps. Hasta ahora esta infraestructura se ha utilizado dentro del marco del...
José Ramón Rodón
21/06/2012 - 14:00
The AGN-Starburst connection in nearby (U)LIRGs: a radio view
I review the main results obtained by our team in the last few years, on studies of nearby Luminous and Ultra-Luminous Infrared Galaxies (LIRGs and ULIRGs, respectively). These galaxies are expected to form stars at rates as large as (10-100) Msolar/yr, or even higher, and constitute excellent laboratories for studies of star-formation. They are also expected to be bright at radio wavelengths.  Among other results, I will present...
Miguel Ángel Pérez Torres
17/06/2012 - 22/06/2012
TEA-IS Summer School
Málaga
14/06/2012 - 14:00
Holographic imaging of dense fields: the amazing poor man's MCAO
Being able to image large fields at the diffraction limit of large telescopes is one of Astronomy's  oldest dreams. The standard way toward achieving this goal is to throw lots of money at it and build ever more sophisticated adaptive optics (AO) systems. As an alternative way, I present an algorithm for speckle holography that has been optimised for diffraction limited imaging of crowded fields.  I will present the exciting...
Rainer Schoedel
31/05/2012 - 14:00
NITROGEN-TO-OXYGEN RATIO AS A SOLID TOOL TO ASCERTAIN THE CHEMICAL EVOLUTION OF STAR-FORMING GALAXIES
Nitrogen is one of the most abundant metals in the ISM and thus emitting strong emission-lines in the optical spectrum of ionized gaseous nebulae. Its nucleosynthetic origin is quite different to that of oxygen as it is produced both by massive stars and by intermediate- and low-mass stars. Thus, the study of the nitrogen-to -oxygen ratio by means of especially defined strong-line methods offers a powerful tool to inspect with...
Enrique Pérez Montero
26/05/2012 - 15:00
Testeado de Posicionadores de Fibras Ópticas y Desarrollo de Interfaz de Comunicación para Instrumentos de Próxima Generación
El Robot comercial de montaje Kawasaki, se baraja como posible brazo posicionador de fibras ópticas para del instrumento OPTIMOS-EVE (E-ELT). La Universidad de Oxford forma parte del consorcio de los espectrógrafos OPTIMOS-EVE y WEAVE (WHT, ambos con elementos retractores de fibras de similar diseño. Como parte de mi proyector fin de máster establecí las bases técnicas para la realización de las...
Zaira Modroño Berdiñas Sala de Juntas del Nuevo Edificio (IAA-CSIC)
24/05/2012 - 14:00
Development of a miniaturized real time attitude controller for micro and nanosatellites
In last years low cost space missions have become an instrument for many research institutes to test new technologies and perform low-orbit Earth science using commercial components. Cubesat represent the most popular standard for microsatellites, but due to low cost components and reduced size, there are no complete attitude controllers available for the smallest versions. This talk will describe the development of a control system...
Gian Paolo Candini
PIIISA 2012 students 18/05/2012
PIIISA 2012 - Young people and Science
The PIIISA 2012 project ended yesterday. A project that aims to join high school students with the professional investigators.  
17/05/2012 - 14:00
Ice Rocks in the Solar System
The study of the minor bodies in the Solar System has historically been a major source of information. The term "Minor Body" covers objects exhibiting very different dynamical and compositional characteristics, in fact, every object in the Solar System that is not a planet or a star, is a minor body. All these objects share a common link, they were the building blocks of the Solar System that we observe today and are considered to...
Noemi Pinilla Alonso

Pages