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Big Data to model the evolution of the cosmic web

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IMAGE: Reconstruction of the cosmic web (shaded areas in grey in the left panel) based on a distribution of galaxies (in red in the left panel) and the primordial fluctuations (right.
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Credit: Francisco-Shu Kitaura (IAC).
The Instituto de Astrofísica de Canarias (IAC) has led an international team which has developed an algorithm called COSMIC BIRTH to analyse large scale cosmic structures. This new computation method will permit the analysis of the evolution of the structure of dark matter from the early universe until the formation of present day galaxies. This work was recently published in the journal ....

Olivier Le , Ramony Cajal , Francisco Shu Kitaura , Excelencia Severo Ochoa , Cosmic Evolution , Monthly Notices Of The Royal Astronomical Society , University Of La Laguna , Kavli Institute For Physics , Instituto De Astrof , Monthly Notices , Royal Astronomical Society , Large Scale Structure , Big Data , Metin Ata , Kavli Institute , Cosmic Evolution Survey , Efficient Bayesian Inference , Evolving Cosmic Web , Galaxy Surveys , Space Planetary Science , ஆலிவர் லெ , பிரான்சிஸ்கோ ஷு கிட்ட Aura ரா , எக்ஷ்செலெஞ்சிய சேவேரோ ஆசோவ , அண்ட பரிணாமம் , மாதாந்திர அறிவிப்புகள் ஆஃப் தி அரச வானியல் சமூகம் , பல்கலைக்கழகம் ஆஃப் லா லகுனா ,

Big galaxies steal star-forming gas from their smaller neighbours

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IMAGE: An artist s impression showing the increasing effect of ram-pressure stripping in removing gas from galaxies, sending them to an early death.
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Credit: ICRAR, NASA, ESA, the Hubble Heritage Team (STScI/AURA)
Large galaxies are known to strip the gas that occupies the space between the stars of smaller satellite galaxies.
In research published today, astronomers have discovered that these small satellite galaxies also contain less molecular gas at their centres.
Molecular gas is found in giant clouds in the centres of galaxies and is the building material for new stars. Large galaxies are therefore stealing the material that their smaller counterparts need to form new stars. ....

Puerto Rico , Adam Stevens , Barbara Catinella , Max Planck , International Centre For Radio Astronomy Research , Centre Of Excellence , University Of Maryland , Massachusetts Institute Of Technology , Harvard Smithsonian Center , Institute For Astronomy , University Of Bologna , University Of Heidelberg , International Centre , Radio Astronomy Research , All Sky Astrophysics , Associate Professor Barbara Catinella , Massachusetts Institute , Professor Catinella , Space Planetary Science , ப்வெர்டோ ரிக்கோ , பண்படாமனித இயல்பு ஸ்டீவன்ஸ் , சர்வதேச மையம் க்கு வானொலி வானியல் ஆராய்ச்சி , மையம் ஆஃப் சிறப்பானது , பல்கலைக்கழகம் ஆஃப் மேரிலாந்து , மாசசூசெட்ஸ் நிறுவனம் ஆஃப் தொழில்நுட்பம் , ஹார்வர்ட் ஸ்மித்சோனியன் மையம் ,

Researchers have compiled a detailed new map of 25,000 supermassive black holes

An international team of scientists have published a comprehensive map in the online journal Astronomy & Astrophysics showing the locations of 25,000 supermassive black holes ....

United Kingdom , Reinout Van Weeren , Leiden University , Francesco De Gasperin , Leiden Observatory , Black Holes , ஒன்றுபட்டது கிஂக்டம் , கருப்பு துளைகள் ,

Insight-HXMT gives insight into origin of fast radio bursts

The latest observations from Insight-HXMT were published online in
Nature Astronomy on Feb. 18. Insight-HXMT has discovered the very first X-ray burst associated with a fast radio burst (FRB) and has identified that it originated from soft-gamma repeater (SGR) J1935+2154, which is a magnetar in our Milky Way.
Insight-HXMT is the first to identify the double-spike structure of this X-ray burst as the high energy counterpart of FRB 200428. This discovery, together with results from other telescopes, proves that FRBs can come from magnetar bursts, thus resolving the longstanding puzzle concerning the origin of FRBs.
These results from Insight-HXMT also help explain the emission mechanism of FRBs, as well as the trigger mechanism of magnetar bursts. ....

Orenburgskaya Oblast , China Academy Of Space Technology , National Space Science Center , Ferrara University , National Institute Of Metrology , Max Planck Institute For Extraterrestrial Physics , Institute Of High Energy Physics , University Of Nevada Las Vegas , Chinese Academy Of Sciences , China National Space Administration , Tsinghua University , Nature Astronomy , High Energy Physics , Chinese Academy , Beijing Normal University , Nevada Las Vegas , China Academy , Space Technology , National Institute , Max Planck Institute , X Ray Timing , Space Planetary Science , Comets Asteroids , சீனா கலைக்கழகம் ஆஃப் இடம் தொழில்நுட்பம் , தேசிய இடம் அறிவியல் மையம் , ஃபெராரா பல்கலைக்கழகம் ,

The CLASP2 space experiment achieves an unprecedented map of the Sun's magnetic field

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IMAGE: Artistic visualization of the Sun s magnetic field in the active region observed by CLASP2
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Credit: Gabriel Pérez Díaz, SMM (IAC).
Every day space telescopes provide spectacular images of the solar activity. However, their instruments are blind to its main driver: the magnetic field in the outer layers of the solar atmosphere, where the explosive events that occasionally affect the Earth occur. The extraordinary observations of the polarization of the Sun s ultraviolet light achieved by the CLASP2 mission have made it possible to map the magnetic field throughout the entire solar atmosphere, from the photosphere until the base of the extremely hot corona. This investigation, published today in the journal ....

United States , Czech Republic , Luca Belluzzi , Takenorij Okamoto , Pino Alem , Javier Trujillo Bueno , Lyman Alpha Spectro , Masahito Kubo , Jiri Stepan , Alberto Sainz Dalda , Asensio Ramos , Davide Mckenzie , Toshifumi Shimizu , Masaki Yoshida , Amy Winebarger , Ken Kobayashi , Yoshinori Suematsu , Jorrit Leenaarts , Laurela Rachmeler , Ernest Alsina Ballester , Hirohisa Hara , Istituto Ricerche Solari Locarno , Ryohko Ishikawa , Christian Bethge , Noriyuki Narukage , European Union Horizon ,