Headlines and events archive
Displaying 301 - 350 of 1932
You may also find an archive of news published in the media which are related with the Instituto de Astrofísica de Andalucía - CSIC.
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24/05/2022 - 12:30
Time domain astronomy with future X-ray satellites Accreting black holes emit in X-rays at the wave-band in which THESEUS will be observing (0.3 keV-20 MeV) due to their extreme physical conditions. The softer energy range is devoted to thermal emission from the accretion disc and the harder is due to the existence of a hard X-ray emitting corona (with undefined geometry so far). The importance of one component versus the other gives rise to the diverse state classification of accreting black... Dr. Maria D. Caballero-Garcia |
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23/03/2022
R Aquarii: a symbiotic star with active galaxy features The Institute of Astrophysics of Andalusia (IAA-CSIC) participates in the X-ray analysis of R Aquarii, a double star formed by a red giant star and a white dwarf. The system shows a very complex morphology, with a bipolar S-shaped jet emerging from the white dwarf and an extensive nebula with filaments and cavities |
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14/07/2022 - 12:30
A journey into the Perseus cluster of galaxies The central black hole of active galaxies accretes large amounts of matter and powers jets of relativistic particles that can propagate beyond the host galaxy. Radio galaxies are particularly bright at ∼ GHz frequencies, when the accelerated electrons interact with the magnetic field and produce strong synchrotron emission. Such galaxies residing in clusters evolve in a hot, diffuse, X-ray emitting plasma (the intracluster medium, ICM) which is... Dr. Marie-Lou Gendron-Marsolais |
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26/04/2022 - 12:30
Destroying Planetary Systems Modern astronomy invests a large amount of effort to search and characterise planetary systems around solar-like stars. In particular, at early stages of their formations in proto-planetary disks. However, we barely know much about the capacities of the planets to survive the harsh environments produced by their host stars during their evolution. In this talk, I will describe the effects a planet can produce by helping shape the mass loss of... Dr. Jesús Toala |
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24/03/2022 - 12:30
Is it possible to simulate time machines in a laboratory? General Relativity is the most succesful theory we have for describing gravitational phenomena. Its range of applicability is vast: from solar system scales to cosmological scales. It is well-known that GR allows the existence of time machines: devices that are able to generate Closed-Timelike-Curves (CTCs). Although these kind of objects are allowed in GR, most researchers believe that they cannot occur on macroscopic scales. However, it is... Gerardo Garcia |
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20/05/2022 - 11:30
Imaging the supermassive black hole at the galactic center with the EHT We present the first Event Horizon Telescope (EHT) observations of Sagittarius A* (Sgr A*), the Galactic center source associated with a supermassive black hole. These observations were conducted in 2017 using a global interferometric array of eight telescopes operating at a wavelength of λ = 1.3 mm. The EHT data resolve a compact emission region with intrahour variability. A variety of imaging and modeling analyses all support an image that... José Luis Gómez, Rocco Lico, Guang-Yao Zhao, Ilje Cho, Antonio Fuentes, y Thalia Traianou |
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11/05/2022 - 12:30
SO Coloquio: Stellar clustering connecting the formation and evolution of galaxies to the formation and evolution of us The clustered nature of star formation leaves a long-term imprint on galaxies, stars, and planets. At young ages, stellar clustering subdivides galaxies into individual building blocks undergoing vigorous, feedback-driven life cycles that vary with the galactic environment. These units structure the interstellar medium spatially, dynamically and chemically, and collectively define how galaxies form stars. At old ages, the relics of clustered... Dr. Diederik Kruijssen |
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12/05/2022 - 12:30
SO Coloquio: The cloud-scale baryon cycle across the nearby galaxy population The cycling of matter in galaxies between molecular clouds, stars and feedback is a major driver of galaxy evolution. However, it remains a major challenge to derive a theory of how galaxies turn their gas into stars and how stellar feedback affects the subsequent star formation on the cloud scale, as a function of the galactic environment. Star formation in galaxies is expected to be highly dependent on the galactic structure and dynamics,... Dr. Mélanie Chevance |
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19/05/2022 - 12:30
SO Webloquio: Charting the first billion years of our Universe with the Square Kilometre Array The first billion years witnessed the dawn of the first galaxies, eventually culminating in the final phase change of our Universe: the Epoch of Reionization (EoR). Recent observations allowed us limited glimpses into these epochs, improving our understanding of the timing of the EoR. However, we still do not understand the first galaxies and black holes, the vast majority of which are too faint to be seen directly in the foreseeable future.... Dr. Andrei Mesinger |
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07/04/2022 - 13:00
SO Webloquio: Measuring the Magnetic Fields of Exoplanets with Star-Planet Interactions Planets interact with their host stars through gravity, radiation and magnetic fields. For giant planets orbiting stars within ~20 stellar radii (=0.1 AU for a Sun-like star), magnetic star-planet interactions (SPI) are observable at a range of wavelengths with a variety of photometric, spectroscopic and spectropolarimetric techniques. At such close distances, planets orbit within the sub-alfvénic radius of the star, where magnetic interactions... Dr. Evgenya Shkolnik |
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14/03/2022
Bernardelli-Bernstein confirmed to be the largest Oort-cloud comet in the Solar System The Institute of Astrophysics of Andalusia (IAA-CSIC) participates in the study with the ALMA radiotelescope (Chile) of comet C/2014 UN271 Bernardinelli-Bernstein, which determined its size and albedo, or surface reflectivity. With 137 kilometres, it is the largest known comet, and perhaps one of the most pristine |
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10/03/2022
The start of the birth of planets in a binary star system observed The Institute of Astrophysics of Andalusia (IAA-CSIC) leads the study of the binary star SVS 13, still in its embryonic phase. Astronomers have observed primordial material that may be giving birth to three planetary systems around a binary star |
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20/04/2022 - 12:30
Turning Trash into Treasure: How OH megamasers are contaminating next-generation HI surveys and what they can tell us about galaxy evolution OH megamasers (OHMs) are rare, luminous masers found in (ultra-)luminous infrared galaxies ([U]LIRGs). The dominant OH masing line at 1667 MHz can spoof the 1420 MHz neutral hydrogen (HI) line in untargeted HI emission line surveys. This ambiguity creates a potential source of “contamination” in HI surveys, particularly for next-generation surveys that will reach groundbreaking sensitivities and redshifts. In this talk, I will present... Dr. Hayley Roberts |
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31/03/2022 - 12:30
How the intracluster light is going to change your life! There are a huge number of astrophysical phenomena that remain barely studied due to the lack of large, multiwavelength and deep optical surveys. This is the Universe with the lowest density of stars, largely unseen by past large field surveys like the Sloan Digital Sky Survey (SDSS). For instance, only a handful of galaxy clusters have been observed with enough depth to witness the intracluster light (ICL), made up of stars that drift freely... Dr. Mireia Montes |
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04/03/2022
First results of the MASCOT project suggest that galaxies "turn off" from the inside out The Institute of Astrophysics of Andalusia (IAA-CSIC) participates in MASCOT, a large-scale study of the cold gas in galaxies, an essential element for understanding how galactic evolution works |
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28/04/2022 - 12:30
SO Webloquio: When artificial intelligence meets astronomy: celestial object census Over the centuries, astronomers have continued to improve the performance of telescopes and the techniques for observing and analysing data. Nowadays, humans are building more and more advanced telescopes with larger and deeper observations, reaching terabytes and even petabytes of data. The Square Kilometre Array (SKA) radio telescope, the most ambitious project in astronomy under construction, is expected to produce more than 700 petabytes of... Dr. An Tao |
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21/04/2022 - 12:30
SO Coloquio: Constraints on the origin of free-floating planets from the mass function The stellar mass function is a fundamental parameter to constrain star formation models. Although the stellar content has been extensively studied since Salpeter's first work in 1955, the study of the planetary mass regime is only now becoming feasible. I will present a recent census of the Upper Scorpius and Ophiuchus star- forming region, where we identified between 70 and 170 free- floating planets. This is by far the largest sample of... Dra. Núria Miret Roig |
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22/02/2022
Structure of the supermassive black hole at the center of our galaxy revealed The IAA-CSIC leads a study that reveals the almost circular shape of Sagittarius A*, the supermassive black hole located in the center of the Milky Way. The shape indicates that the axis of rotation of the flow of matter surrounding the black hole (or a possible jet) may be pointing toward Earth |
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14/02/2022
Pulsars could hide one of the keys to understanding how cosmic rays travel The Institute of Astrophysics of Andalusia (IAA-CSIC) leads a study that analyzes the role of gamma-ray halos around pulsars in order to understand how cosmic rays travel |
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17/03/2022 - 12:30
Surprises from MAVEN at Mars: Aurora, meteor showers, and a new water loss paradigm The Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft carries the Imaging Ultraviolet Spectrograph (IUVS) to study the Mars atmosphere and atmospheric escape. After more than two Mars years in orbit, IUVS has gained new insights on key phenomena at Mars including dayglow, nightglow, aurora, meteor showers, clouds, solar-planetary interactions and atmospheric evolution. In this presentation, I will highlight three key results... Dr. Nick Schneider |
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02/06/2022 - 12:30
SO Coloquio: The Antikythera Mechanism and the Mechanical Universe The Antikythera Mechanism. An astronomical calculator and display device found in a first century BCE shipwreck, it is mechanically more sophisticated than anything known from the subsequent millennium. I want to argue that we should be showing admiration rather than amazement, and that the Mechanism fits rather well into its historic context. But this fit has major implications for the development of humanity’s view of the Universe. Prof. Michael G. Edmunds |
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23/06/2022 - 12:30
Disks around evolved binaries: do they form second-generation planets? Most of the planets are formed around young stars. But can they also form around dying stars? The origin of the diversity and complexity of the detected exoplanetary systems stems from how they form in protoplanetary disks. These disks are intensively studied around young stars thanks to the high-angular resolution provided by recent instruments (VLT, ALMA). However, similar disks are also found around evolved stars, namely post-AGB binaries,... Dr. Jacques Kluska |
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01/02/2022
Second Trojan asteroid detected around Earth Trojans are asteroids that share an orbit with a planet around its stable Lagrangian points, which are located sixty degrees ahead and behind the planet in its orbit. Widely studied on other planets, such as Jupiter, which has several thousand, only one has so far been found around the Earth |
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21/03/2022 - 01/04/2022
PySnacks for beginners Online |
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19/01/2022
Highest resolution image of the OJ 287 galaxy suggests it harbours a binary supermassive black hole The Institute of Astrophysics of Andalusia (IAA-CSIC) is leading a work that combines observations of space and ground-based radio telescopes to study the central regions of the galaxy OJ 287 |
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07/02/2022 - 18/02/2022
SO Instrumentation School IX. Opto-mechanical systems and mechanical design of IR instrumentation Granada |
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17/01/2022
Plato exoplanet mission gets green light for next phase On January 11, ESA's PLATO mission, in which the Institute of Astrophysics of Andalusia (IAA-CSIC) participates, received the green light to continue its development after successfully passing the review of critical milestones |
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25/01/2022 - 12:30
Cosmological QUOKKAS: Proof of concept and early results on the Hubble Constant tension Distances are one of the most important yet difficult to get quantities in astronomy. Normally, astronomers use redshifts (which are relatively easy to measure) as distance measure, but this only works if one assumes that there is a relationship between redshift and distance. The relationship between redshift and distance was first observationally verified in the 1920s by Edwin Hubble. He found that the further away a galaxy was, the galaxy... Dr. Jeff Hodgson |
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13/01/2022
Re-encounter with a planetary nebula 30 years later reveals changes and a possible companion star The Institute of Astrophysics of Andalusia (IAA-CSIC) leads a study based on data from Calar Alto Observatory (CAHA), showing the variability of the planetary nebula IC4997 |
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23/05/2022 - 27/05/2022
IAA-CSIC Severo Ochoa Advanced School on Galaxy Evolution Granada |
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20/01/2022 - 12:30
Astronomy for attaining sustainable development goals in Africa Education and its contribution to science, technology, and innovation are the key points for combating poverty in the long term. Education is also a key point for empowering girls and women, which is fundamental for achieving the United Nations Sustainable Development Goals (SDGs). Astronomy is a powerful tool to promote education and science but, in addition to that, it is also one of the leading sciences for bringing strong technological... Dra. Mirjana Povic |
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04/04/2022 - 08/04/2022
SO Instrumentation School VIII. Signal Integrity and Electromagnetic Compatibility in Electronic Devices Granada |
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17/01/2022 - 22/01/2022
SO Instrumentation School VII. Metrology with PC-DMIS on a portable Romer Absolute Arms Granada |
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14/03/2022 - 18/03/2022
English for Academic Purposes - an online workshop series for young researchers Granada |
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22/12/2021
Oxygen found in the atmosphere of the hottest known exoplanet A team with the participation of the Institute of Astrophysics of Andalusia (IAA-CSIC) publishes the discovery of oxygen atoms in KELT-9b, the first detection of this compound in an exoplanetary atmosphere. |
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22/12/2021
Distinct pulses captured in the giant magnetic flare from a neutron star In just a tenth of a second, a magnetar -a particularly magnetic type of neutron star- released energy equivalent to that produced by the Sun in 100,000 years. Its study in detail has revealed multiple pulses at the peak of the eruption, which will make it possible to understand these still little-known giant magnetic flares |
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16/12/2021
The dramatic final dance of stars with shared envelope The Institute of Astrophysics of Andalusia (IAA-CSIC) participates in the study of fifteen peculiar stars that have turned out to be double stars that, after sharing an envelope, lost a large part of their mass |
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07/12/2021
Double helix structure observed in the jet emanating from the black hole in M87 galaxy Produced by the magnetic field, it is the first time that this structure has been observed at such far distances from the black hole. The Institute of Astrophysics of Andalusia (IAA-CSIC) participates in the discovery |
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02/12/2021
Giant planets could reach maturity sooner than expected The Institute of Astrophysics of Andalusia (IAA-CSIC) participates in the study of the giant planets of the V1298 Tau system, which in just twenty million years have already reached their final size. The finding has been possible thanks to radial velocity measurements from the HARPS-N spectrographs, at the Roque de los Muchachos Observatory (ORM), and from CARMENES, at the Calar Alto Observatory (CAHA) |
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05/05/2022 - 12:30
Unexplored outflows in nearby low luminosity AGNs: the case of NGC 1052 NGC1052 is considered the prototype of AGN-LINERs, an AGN family at low-luminosity for which, so far, the role of outflows in their evolution has been studied the less. Thanks to MUSE and MEGARA IFS-cubes we found that the stars are distributed in a dynamically hot disc whereas the ionised gas is detected mostly in the polar direction up to 3.3 kpc. We found evidences evidence of an ionised gas outflow (jet-powered) propagating in a cocoon of... Dra. Sara Cazzoli |
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25/11/2021
On fire and in the process of breakind up by its star companion Found a system formed by a white dwarf star and a small object, possibly a planet, so close that the second is scorched by the star's radiation, causing its atmosphere to evaporate |
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24/02/2022 - 12:30
SO Webloquio: Exploring the transient radio sky with the SKA and its precursors Radio astronomical observations probe particle acceleration in some of the most extreme environments in the Universe. For example, we can trace the relativistic jets produced by accreting black holes; observe flashes from hyper-magnetised neutron stars; and study the aftermath of stars that are ripped to shreds as they pass close to super-massive black holes. These events provide critical information about the extremes of the Universe, but they... Dr Jason Hessels |
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27/01/2022 - 12:30
La IAU más cerca que nunca The International Astronomical Union (IAU) has more that 13000 members. Each country pays according to a table that has to do with the number of people belongin to the IAU. But the IAU is not only a club of members but has a number of activities that are open to every member. In particular the IAU run 9 Symposia per year with topics relevant to current astrophysics. On years where there are a General Assembly on top of the 9 Symposia the IAU... Dr. José Miguel Rodriguez Espinoza |
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17/02/2022 - 12:30
The Africa Millimetre Telescope project - extending the EHT The Africa Millimetre Telescope (AMT) project led by the Radboud University and the University of Namibia aims to realise a new telescope on the Gamsberg mountain in Namibia to extend the existing network of telescopes that together form the EventHorizonTelescope (EHT). For the future of the EHT more independent nodes in the network are needed to increase the overal redundancy of the network and to improve the image quality and allow for time-... Dr. Marc Klein Wolt |
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17/11/2021
Discovery of a possible satellite galaxy of M33, a neighbouring Local Group galaxy M33, also known as the Triangle galaxy, is the third largest galaxy in the Local Group, after Andromeda and the Milky Way. The finding is part of the search for the "lost satellites", which tries to resolve the discrepancy between the galaxy formation models and the observations of the Local Group galaxies |
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11/11/2021
New perspectives on the problem of galaxies without dark matter The discovery of numerous very low surface brightness galaxies in the environment of NGC 1052 provides a crucial clue to the debate about the lack of dark matter in some galaxies of this group. The new data points to the existence of a group of galaxies closer than NGC 1052, to which these anomalous galaxies would belong, and the proximity would solve the problem |
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21/10/2021 - 22/02/2022
Spanish for beginners at the IAA-CSIC Granada |
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23/10/2021
Rocco Lico awarded with a 2021 EHT Early Career Award Rocco Lico awarded with a 2021 EHT Early Career Award |