Headlines and events archive

Displaying 601 - 650 of 1944

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



Pages

06/09/2019
IAA researchers, in the "Oscars of Science"
The Breakthrough Prize in Fundamental Physics, endowed with three million dollars, has been awarded to the Event Horizon Telescope (EHT) international collaboration, which obtained the first image of a black hole. Two researchers from the Institute of Astrophysics of Andalusia (IAA-CSIC) participate in the collaboration, which brings together 347 researchers  
28/11/2019 - 12:30
SO-IAA Colloquium: Recent advances about the exoplanetary exospheres
The upper atmosphere of a planet plays a key role at protecting the lower altitudes from the effects of energetic stellar EUV and soft X-ray photons and keV-energy precipitating particles. Through a variety of transport processes, the upper atmosphere also participates in the net loss of a planet’s bulk composition into space. As such, the physics and chemistry occurring in the upper atmosphere influence the evolution of a planet over its...
Antonio García Muñoz
07/11/2019 - 12:30
SO-IAA Colloquium: Characterization of (exo)Planetary Atmospheres
Characterization of planetary atmospheres has always been a challenge. While the next generation of facilities, such as ELT, JWST, and ARIEL, will improve our understanding of planetary atmospheres, the number of well-characterized exoplanet atmospheres is expected to remain limited. Large-scale simulations assist us with this shortcoming by predicting the diversity of the planetary atmospheres, connecting the spare observational measurements,...
Dr. Karan Molaverdikhani
03/10/2019 - 12:30
Some aspects of high precision machines for astronomical applications
Cranfield Precision are not specialists in astronomy but their expertise in designing and building very precise special-purpose machines has contributed to several important astronomical projects. In this talk I will show several machines with astronomical applications and select some features of particular interest for discussion.
Richard May-Miller
05/09/2019 - 12:30
Broad line AGN in the MaNGA survey
This talk presents a way to find Type I Active Galactic Nuclei in the MaNGA survey (Mapping Nerby Galaxies at Apache point observatory). The method is based on flux ratios between spectral regions where a broad line in emission is expected. Likewise, the spectroscopic analysis of 44 galaxies with nuclear activity is shown; as well as the estimation of the mass of supermassive black holes and the effect that the active nucleus has on...
Dra. Alenka Negrete
17/10/2019 - 12:30
SO-IAA Colloquium: What's is the metallicity of cool dwarf stars?
Cool dwarfs are the most numerous stars in the Galaxy and they account for most of its baryonic mass. However, they are likely the least understood main sequence stars. Their complex atmospheres, due to their low temperatures and high surface gravities, have made their spectroscopic study a hard task. Until recently, their basic physical properties, such as radii and mass, were poorly constrained due to the lack of empirical data. Stellar...
Bárbara Rojas-Ayala
27/08/2019
A distant stellar collision with the shine of precious metals
A signature similar to the gold and platinum producing explosion observed in light and gravitational waves in 2017 is found in the data of a 2016 gamma ray explosion. This confirms that heavy elements are produced in kilonovas, bursts that result from the fusion of very compact objects, such as neutron stars or black holes
12/09/2019 - 12:30
Detection of Exocomets: The gaseous environment of Main-Sequence Stars
Planetesimals and small solid bodies in general are key to understand the chemical and dynamical evolution of planetary systems. Direct detection outside the Solar System is still not feasible. However, indirect evidences of such bodies as dusty debris disks or the presence of large amounts of gas in the close-in surroundings of main-sequence stars have been collected for over 30 years now. Transient events observed as variable non-...
Dr. Isabel Rebollido
31/07/2019
Space and ground-based observations reveal a planetary trio around a nearby star
Combining data from the TESS satellite and from various instruments on the ground, CARMENES among others, leads to the detection of a multiple planetary system around a nearby star. The work, which involves researchers from Instituto de Astrofísica de Andalucía (IAA-CSIC), opens the door to the detailed study of multiple planetary systems       
10/10/2019 - 12:30
THE INNER DEBRIS OF SN1987A: MOLECULAR AND DUST EMISSION
The supernova SN1987A in the Large Magellanic Cloud, together with new instrumentation like ALMA, offers an unprecedented opportunity to tackle fundamental issues of supernova explosions. Large masses of molecules and dust have been formed in its inner debris over the last 25 years. Recently developed tomographic techniques have allowed to obtain 3D-images of its molecular emission. Also, high-resolution images of dust emission have recently...
Prof. Jon Marcaide
25/07/2019
The orbit of a star around the supermassive black hole of the Milky Way confirms the validity of Einstein's theory of relativity
The star S2 draws an ellipse around Sagittarius A *, the black hole of the galactic nucleus, and its monitoring over twenty-six years has allowed studying the gravity in extreme environments. Researchers from the Institute of Astrophysics of Andalusia (IAA-CSIC) participate in the results, which are published in the journal Science
17/07/2019
25th anniversary of the impact of the comet Shoemaker-Levy 9 against Jupiter
Between July 16 and 24, 1994, comet Shoemaker-Levy 9 hit Jupiter. Every observatory in the world was watching this unique event in history.
12/12/2019 - 12:30
NGC 7469 as seen by MEGARA: new results from high-resolution IFU spectroscopy
In this talk I will present highlights from our recent work about the analysis of high-resolution (R ~ 20 000) GTC/MEGARA integral-field unit spectroscopic observations, obtained during the commissioning run, in the inner region (12.5arcsec×11.3arcsec) of the active galaxy NGC7469, at spatial scales of 0.62 arcsec. We explore the kinematics, dynamics, ionisation mechanisms and oxygen abundances of the ionised gas, by modelling the Hα-[NII]...
Dr. Sara Cazzoli
24/10/2019 - 12:30
ANALOGUES OF HIGH REDSHIFT GALAXIES: DISENTANGLING THE COMPLEXITY OF THE GREEN PEAS
Young low-mass galaxies with extreme emission-line properties are ubiquitous at high redshift and they are believed to play a key role in cosmic reionisation and the early growth of galaxies at z>4-6. However, a detailed characterisation of their physical properties, critical for a better understanding of these two outstanding problems, is yet not possible. A unique population of lower-z analogues of these primeval systems, dubbed Green Pea (GP...
Dr. Ricardo Amorin
02/07/2019
Massive stars prefer high-order multiplicity over binarity
MONOS project studies the binary or multiple systems formed by the most massive stars
14/11/2019 - 12:30
SO-IAA Colloquium: Outflows and their feedback effect in galaxies
Galactic outflows are an essential component of galaxies' lifecycle. They regulate star formation and can even totally quench star formation in galaxies, hence transforming star forming galaxies into passive systems. I will review the properties of galactic outflows, their multi-phase nature, their driving mechanism, both in normal star forming galaxies and in galaxies hosting Active Galactic Nuclei, both in the local Universe and in...
Dr. Roberto Maiolino
12/11/2019 - 12:30
Study of the diversity of AGN dust models
The dust component of active galactic nuclei (AGN) produces a broad infrared spectral energy distribution (SED), whose power and shape depends on the fraction of the source absorbed, and the geometry of the absorber respectively. This emitting region is expected to be concentrated within the inner ∼5 pc of the AGN which makes almost impossible to image it with the current instruments. The study the infrared SED by comparison between infrared AGN...
Dr. Omaira González-Martín
25/10/2018 - 19:00
The Arp299 puzzle. Black holes that devour stars
In January 2005, a bright flash was detected in the nucleus of the galaxy in the process of fusion Arp 299-B, which was considered a supernova explosion. However, ten years of observations at different wavelengths have allowed us to witness how the luminous region was lengthening and expanding, and to conclude that it is a jet of material expelled by the galaxy's central super-massive black hole after tearing a star.
Miguel Ángel Pérez-Torres
29/11/2018 - 19:00
The Hubble-Lemaître constant: is it really a constant?
Following an open debate, the International Astronomical Union recently recommended that the rate of expansion of the universe, traditionally referred to as the "Hubble Constant", should henceforth be referred to as the "Hubble-Lemaître Constant".
Emilio J. Alfaro
13/12/2018 - 19:00
Artificial Intelligence and big data: the power of data
Artificial Intelligence and big data: the power of data. Outreach conference
Francisco Herrera
31/01/2019 - 19:00
Methane in Mars: what are we talking about?
We review the evidence of the existence of methane on Mars and its possible implications.
José Juan López Moreno
28/03/2019 - 19:00
Superwinds: galactic hurricanes
Galactic superwinds, common phenomena in galaxies, are capable of releasing an extraordinary amount of energy and transporting material over long distances. Their influence on the host galaxy can be of great importance, to the extent that the formation of these "galactic hurricanes" can even determine the life of galaxies. The study of these phenomena provides us with some keys to solving the enigmas of modern astronomy about the evolution of...
Sara Cazzoli
25/04/2019 - 19:00
The first image of a black hole
The Horizon Event Telescope (EHT), a planetary-scale telescope made up of eight radio telescopes and forged through international collaboration, was designed to capture the first image of a black hole. In a series of simultaneous international press conferences on April 10, EHT researchers revealed that they had succeeded and showed the first direct visual evidence of a super-massive black hole and its shadow.  
José Luis Gómez
30/05/2019 - 19:00
The Calar Alto Astronomical Observatory: 45 years of cutting-edge astronomy
It has been 45 years since Calar Alto Observatory was founded. An observatory that, among its merits, has been one of the main engines of the development of astronomy in Spain and, of course, one of the foundations of the creation of the Instituto de Astrofísica de Andalucía (Andalusian Astrophysics Institute). This year the observatory goes from being Hispano-German to being totally Hispanic, with the incorporation of the Junta de Andalucía...
Jesús Aceituno
27/06/2019 - 19:00
Climate change in Mars
Outreach conference about the atmosphere and climate variability of the red planet
Francisco González Galindo
18/06/2019
CARMENES finds two temperate terrestrial planets around Teegarden´s star, a small nearby star
CARMENES is a visible and infrared spectrograph that operates from the Calar Alto Observatory. Researchers from the Institute of Astrophysics of Andalusia (IAA-CSIC) participate in the research, which collected data from different astronomical facilities, including the Sierra Nevada Observatory (OSN)
05/06/2019
TESS first light on stellar physics sheds light on roAp stars, the extreme pulsators
TESS data has allowed to find five roAp, a type of rare stars that shows rapid pulsations, intense magnetic fields and a peculiar chemical composition
19/11/2019 - 12:30
METIS instrument: the IMAGER and the SCAO
METIS is one of the three first instruments for the European Extremely Large Telescope (ELT), Europe’s next-generation ground-based telescope for optical and infrared wavelengths which is currently under construction at the ESO site at Cerro Armazones in Chile. METIS is the Mid-infrared ELT Imager and Spectrograph. This instrument will offer imaging, coronagraphy and medium-resolution spectroscopy over the full wavelength range from 3 to 14...
Dr. Concepción Cárdenas
07/10/2019 - 12:30
SO Colloquia: FPGAs in space: current experiences, future challenges and opportunities
FPGAs are key components in space equipment due to their versatility and performance to implement digital functions. They are embarked in satellites and used in many applications; such as observing the earth, provide telecommunications and navigation services as well as to contribute to science and explore the wider Universe. The FPGAs face very different conditions in space compared to the terrestrial applications, especially due to the...
Merodio Codinachs
25/06/2019 - 12:30
Properties of ionized outflows in MaNGA DR2 galaxies
Feedback originated from star formation and AGN activity in galaxies can have a significant impact on their evolution. The action of feedback leads to several processes that might have a significant effect on the surrounding gas, for example by heating the system, halting or enhancing star formation, or enriching the interstellar medium. Constraining the incidence and properties of feedback events such as ionized outflows is therefore crucial to...
Bruno Rodríguez Del Pino
04/06/2019 - 12:30
Correlations between the size and the stellar population properties of quiescent galaxies
During the last decades, many authors have put large efforts to shed light on the mechanisms responsible of the generalized growth in size of galaxies, as well as to disentangle the main “driver” of their stellar content. In our study, we aim at stating new constraints on the mechanisms that may drive the growth in size of massive galaxies through the study of the stellar population properties of quiescent galaxies within the stellar mass-...
Dr. Luis Díaz García.
18/06/2019 - 12:30
Oxygen Line Diagnostics in X-ray spectroscopy
Line diagnostics is very important to understand the physics of astronomical sources. Taking advantage of oxygen line diagnostics in X-ray spectroscopy, I will show some of our research for both the moderate-resolution the high-resolution X-ray spectra based on the newly updated atomic database (ATOMDB). I will demonstrate its power for SgrA spectrum, HII regions, and some nearby galaxies. In addition, I will introduce related space mission...
Dr. Li Ji
24/05/2019 - 11:30
A prototype SKA Science Regional Centre at the IAA
In this seminar we will describe our involvement in the design of the SRCs, how we are preparing for hosting an SRC at the IAA - one of the strategic objectives of the IAA Severo Ochoa programme - as well as potential benefits for the IAA and collaboration opportunities, such as the one already started with the PLATO team. We will conclude by illustrating the challenges associated with following Open Science principles with an example of their...
Lourdes Verdes-Montenegro, Susana Sánchez, Michael G. Jones
09/07/2019 - 12:30
The Orientation of the Collimated Outflows of Planetary Nebula: Independence Day
The discovery of collimated outflows in planetary nebulae (PNe) has changed the paradigm of PN formation. They actively participate in the nebular shaping immediately before or while fast stellar winds and D-type ionization fronts shock and swept the nebular envelope. The general properties of collimated outflows of PNe cannot be studied because projection effects do not allow us to determine their space velocities and linear sizes. The large...
Jackeline Suzett Rechy Garcia & Martin A. Guerrero
17/05/2019 - 12:30
TIDES, PLANETARY WAVES, AND ATMOSPHERIC COUPLING
A growing number of studies report linkages between unrelated stratospheric and upper atmospheric phenomena. For example, stratospheric warmings correlate with ionospheric perturbations, and with reductions in polar mesospheric cloud occurrence. Understanding these so-called teleconnections is important for prediction of the near-space environment, and interpreting global change proxies. Tides and planetary waves are important agents for...
Dr. Ruth Lieberman
19/06/2019 - 11:00
SO Colloquia: Searching extended line-emission objects in wide-field surveys: The IPHAS experience
One of the problems we are facing in the study of evolved low- and intermediate-mass stars such as Planetary Nebulae (PNe) is the lack of completeness. Most known PNe belong to the bright or intermediate part of the luminosity function, leaving out those at the faint end. Any global chemical, kinematical, and physical analysis of the PN population is therefore biased. In 2003 the INT Photometric Halpha Survey started scanning the...
Dra. Laurence Sabin
13/06/2019 - 12:30
SO Colloquium: Back to Orion
Orion is the massive star formation region closest to the Sun and in consequence it has been studied in detail. I will present three recent results from the IRyA group on this region. The first one is the ultraprecise determination of the distance to Orion using VLBI observations of stars with non-thermal emission. The second result is a study of the kinematics of the stars with either termal or non-thermal emission. Finally, we will focus on...
Dr. Luis F. Rodríguez
30/04/2019
The impact of a rock against the Moon during a total eclipse
The study of the impacts on the lunar surface allows to adjust the predictions of impacts on our planet
07/06/2019 - 12:30
The Very Large Array Sky Survey (VLASS) and the next generation Very Large Array (ngVLA)
The VLASS is part of a new generation of radio sky surveys. It covers the entire sky above -40 degrees declination. Observations started with the Karl G. Jansky Very Large Array in 2017 and the first epoch covering the entire survey area will be completed by July 2019. This will be followed by two more complete passes with an anticipated completion by 2024. In comparison to previous surveys, the observations are performed at 2-4 GHz and at...
Dr. Frank Schinzel
15/04/2019
Hurricane winds in Titan's high atmosphere
Titan, one of Saturn's largest moons, is the only satellite in the Solar System with a complex atmosphere, resembling the primitive Earth. Very strong and confined winds have been detected in the high atmosphere of the satellite, where it seemed to be not enough energy to trigger such fast winds  
03/05/2019 - 12:30
An ionised bubble before the epoch of re-ionisation
In a search for Lyman Alpha sources around two spectroscopically confirmed star forming sources in the Subaru Deep Field, we have found some 45 low luminosity star forming galaxies. We find that these sources form a proto-cluster. Moreover, they reside in an ionised bubble of at least 12000 cMpc^3.
Dr. Jose Miguel Rodriguez Espinosa
10/04/2019
First results from the ExoMars misión: absence of methane on Mars and variations in water vapor due to dust storms
After a year in orbit around Mars, the TGO orbiter of the ExoMars mission (ESA-Roscosmos) reveals a surprising absence of methane and a relationship between dust storms and atmospheric water vapor. The results, published in Nature, were obtained with the ACS and NOMAD instruments. Researchers from the Institute of Astrophysics of Andalusia (IAA-CSIC) participate in the results, as well as in the scientific team that developed NOMAD
10/04/2019
The Governing Council of Junta de Andalucía authorizes its Administration to endorse the Hispano-German Astronomical Center (CAHA)
El Consejo de Gobierno de la Junta de Andalucía autoriza a la Consejería de Economía, Conocimiento, Empresas y Universidad, en su sesión de 9 de abril de 2019, la adhesión de la Administración de la Junta de Andalucía a la Agrupación de Interés Económico del Observatorio Astronómico de Calar Alto (CAHA) en Almería. Esta decisión concluye con los requerimientos necesarios para poder efectuar la firma del correspondiente convenio
31/10/2019 - 12:30
SO-IAA Colloquium: Neutral and molecular gas outflows as tracers of the impact of radio jets
Our view of the gas and its physical conditions in the central region of AGN has been enriched by the discover of fast and massive outflows of HI and molecular gas. These outflows can be driven by radiation/winds but also by the interaction of the radio plasma with the ISM. Understanding the origin and quantifying their impact requires to trace their location and derive their physical conditions (density of the gas, mass, mass outflow rate and...
Dr. Raffaella Morganti
10/04/2019
Astronomers Capture First Image of a Black Hole
Spanish astronomers from the Institute of Astrophysics of Andalusia (IAA-CSIC), the National Geographic Institute, the Millimeter Radioastronomy Institute and the University of Valencia have participated in this work. This international study assumes a paradigm shift in observations of the supermassive black hole located in the center of the Messier 87 galaxy
04/04/2019 - 12:30
Is there still hope for discovering new physics in the Euclid era?
The new generation of cosmological surveys like DESI, J-PAS and Euclid will measure the effect of dark energy on the expansion history of the universe. They will obtain optical and NIR spectra for tens of millions of galaxies and quasars, constructing a 3-D map spanning the nearby universe to 10 billion light-years, and will provide an accurate determination of the distance-redshift relation. I will review the latest distance scale measurements...
Dr. Francisco Prada
27/06/2019 - 12:30
Stellar Tidal Streams in Nearby Galaxies as Dark Matter Probes
Mergers and tidal interactions between massive galaxies and their dwarf satellites are a fundamental prediction of the Lambda-Cold Dark Matter cosmology. These events are thought to influence galaxy evolution throughout cosmic history and to provide important observational diagnostics of nonlinear structure formation. Thin stellar streams in the Milky Way and Andromeda galaxies are spectacular evidence for satellite disruption at the...
Dr. David Martinez-Delgado
21/03/2019 - 12:30
Primer Plan de igualdad del IAA
El objetivo de esta charla es presentar a todo el Instituto el I Plan de Igualdad de género. Plantearé las motivaciones y necesidades de contar con un plan de igualdad en un instituto de investigación, cuando ya el CSIC está preparando su III Plan de Igualdad. Revisaré los objetivos y marco de actuación de los planes del CSIC y mi visión de cómo el nuestro se hace para complementar algunas acciones no contempladas dentro de esa estructura...
Dra. Josefa Masegosa
21/02/2019
A jet detected from the merging of two neutron stars
The merging of the two stars, which occurred in August 2017, expelled a large amount of material that has been observed so far by radiotelescopes on five continents
12/02/2019
First formal meeting between the Minister Pedro Duque and the alliance of Severo Ochoa centres and María de Maeztu units, SOMMa
The Institute of Astrophysics of Andalusia (IAA-CSIC) obtainted in 2018 the distinction Center of Excellence Severo Ochoa

Pages