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      • Supermassive Black Holes: Enviroment and Evolution, 19-22 June, 2019, Corfu, Greece
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AHEAD

  • Home
  • About AHEAD2020
  • Open days
    • National Observatory of Athens (Penteli)
    • National Observatory of Athens (Thissio)
  • Events
    • Conferences
      • Supermassive Black Holes: Enviroment and Evolution, 19-22 June, 2019, Corfu, Greece
      • First AHEAD gamma-ray workshop: Integral looks AHEAD to multi-messenger astrophysics, 11-15 February 2019, Geneva Switzerland
  • Videos
    • AHEAD
      • Virtual Reality videos
        • The Hot and Energetic Universe – Virtual Reality (VR) edition
        • The X ray Universe – Virtual Reality (VR) edition
      • Hot and Energetic Universe – El Universo caliente y energĂ©tico (Spanish Narration)
      • The Hot and Energetic Universe (flat version, HDTV)
      • The Hot and Energetic Universe (short version)
      • Short version of “The Hot and Energetic Universe” (Greek narration and subs)
      • The Hot and Energetic Universe (version for DOME theatres)
      • Black Holes
      • Gamma Ray Bursts
      • Gamma ray astronomy
      • Why Observe from Space
      • AHEAD advertising video
      • AHEAD video for National Observatory of Athens
    • NOA
      • NOA
    • Documentaries
    • Public Lectures
    • HEASARC
      • ESO
    • ESA
  • Images
    • HEASARC
    • ESO
    • APOD
    • HEAPOW
  • Educational
    • Booklet for Dome Video (ESO website)
    • Booklet for Dome Video
    • Guide for visitors (Dome Video)
    • Posters
      • About AHEAD
      • The Hot and Energetic Universe
      • The Hot and Energetic Universe (full version, ~300MB)
      • Black Holes and Supernovae
      • Black Holes and Supernovae (full version, ~300MB)
      • AGN
      • AGN (full version, ~2MB)
      • Gravity
      • Gravity (full version, ~2MB)
      • X-ray Observations/Surveys
      • X-ray Observations/Surveys (full version, 2MB)
    • Below age of 14
      • Star child (NASA)
      • ESA kids (ESA)
      • Presentations
    • Above age of 14
      • Imagine
      • XMM learning centre
      • SWIFT learning centre
      • RXTE learning centre
      • Fermi education centre
      • A brief History of High Energy Astronomy (NASA)
      • ESA education (ESA)
    • Advanced
      • Astronomy exercises (ESA/ESO)
      • Hubble Public Lectures (NASA)
  • Links
    • AHEAD main site (INAF)
    • Public Outreach
      • The Athena X-ray Observatory
      • European Gravitational Observatory (EGO)
      • 3XMM
      • ESA
      • ESO/ePOD
      • ESO-Press Release
      • HEASARC
      • WebStars
      • Ask an astrophycist
      • Cosmic Distances
      • AstronomyNow
    • Missions
      • INTEGRAL
      • XMM-NEWTON
      • AstroSat
      • Swift
      • Chandra
      • AGILE
      • ATHENA
  • Press
    • The Hot and Energetic Universe: A planetarium movie
    • Scientists invited to take advantage of leading high energy research centres
    • INAF Press Release: X-ray bombardment
    • AHEAD’s planetarium movie wins the international fulldome film competition
      • INAF Press Release
      • NOA Press Release
      • LU Press Release
    • Scientists assemble to discuss the power of X-ray spectroscopy
    • Researchers’ Night 2017
      • INAF Rome Press Release
      • NOA Press Release
    • Press release for ATHENA
      • NOA press release
      • INAF Rome press release
    • Press release from the AHEAD Multi-messenger workshop in Alicante
  • Social media
New Articles
#AthenaNuggets: Squeezing of Pulsar Wind Nebulae, by Diego F. Torres (January 18, 2021)
A fast and young magnetar found not that far from the Milky Way! (January 14, 2021)
eROSITA discovers a new Supercluster of galaxies! (January 13, 2021)
China launches gamma ray–hunting satellites to trace sources of gravitational waves! (January 8, 2021)
Black Hole's Dust Ring May Be Casting Shadows From Heart of a Galaxy! (January 5, 2021)
  • #AthenaNuggets: Squeezing of Pulsar Wind Nebulae, by Diego F. Torres
  • A fast and young magnetar found not that far from the Milky Way!
  • eROSITA discovers a new Supercluster of galaxies!

#AthenaNuggets: Squeezing of Pulsar Wind Nebulae, by Diego F. Torres

A fast and young magnetar found not that far from the Milky Way!

#AthenaNuggets: Squeezing of Pulsar Wind Nebulae, by Diego F. Torres Article

#AthenaNuggets: Squeezing of Pulsar Wind Nebulae, by Diego F. Torres

January 18, 2021
A fast and young magnetar found not that far from the Milky Way! Article

A fast and young magnetar found not that far from the Milky Way!

January 14, 2021
eROSITA discovers a new Supercluster of galaxies! Article

eROSITA discovers a new Supercluster of galaxies!

January 13, 2021
China launches gamma ray–hunting satellites to trace sources of gravitational waves! Article

China launches gamma ray–hunting satellites to trace sources of gravitational waves!

January 8, 2021
Black Hole's Dust Ring May Be Casting Shadows From Heart of a Galaxy! Article

Black Hole's Dust Ring May Be Casting Shadows From Heart of a Galaxy!

January 5, 2021
Astronomers Observe a Bright Relativistic Jet from distant Blazar! Article

Astronomers Observe a Bright Relativistic Jet from distant Blazar!

December 27, 2020

“The Hot and Energetic Universe” – Now available with Spanish Narration!

November 28, 2020November 28, 2020 Ektoras PouliasisArticle

The planetarium documentary “The Hot and Energetic Universe” presents with the use of Immersive Visualizations and real images the achievements of the modern astronomy, the most advanced terrestrial and orbital observatories, the basic principles electromagnetic radiation and the natural phenomena Read More …

X-ray and radio bursts detected from magnetar 1E 1547.0–5408!

November 27, 2020November 27, 2020 Ektoras PouliasisArticle

An international team of astronomers has conducted simultaneous radio and X-ray observations of the magnetar 1E 1547.0–5408 during its period of enhanced activity. In result, new X-ray and radio bursts were detected from this source. The finding is reported in Read More …

Assessing The Habitability of Planets Around Old Red Dwarfs!

November 12, 2020November 12, 2020 Ektoras PouliasisArticle

A new study using data from NASA’s Chandra X-ray Observatory and Hubble Space Telescope gives new insight into an important question: how habitable are planets that orbit the most common type of stars in the Galaxy? The target of the Read More …

Extreme ‘Black Widow’ Star Identified as Source of Mystery Gamma Radiation!

November 3, 2020November 3, 2020 Ektoras PouliasisArticle

For more than two decades, astronomers have been systematically tracing mystery sources of high-energy gamma rays to their sources. One, however, remained stubborn – the brightest unidentified source of gamma rays in the Milky Way. It seemed to be coming from Read More …

Take a tour of the European Gravitational Observatory (EGO) and the advanced Virgo detector

October 20, 2020October 20, 2020 Ektoras PouliasisShort article

The covid-19 situation suspended all the visits on site, though the visits in EGO and Virgo will be LIVE BROADCASTED from the time beeing! Stay tuned! Galileo’s telescope opened the door to the stars, EGO and Virgo opened a new Read More …

Death by Spaghettification: Telescopes Record Last Moments of Star Devoured by a Black Hole!

October 16, 2020October 16, 2020 Ektoras PouliasisArticle

A rare blast of light, emitted by a star as it is sucked in by a supermassive black hole, has been spotted by scientists using telescopes from around the world. The phenomenon, known as a tidal disruption event, is the Read More …

The black hole always chirps twice: Scientists find clues to decipher the shape of black holes!

October 10, 2020October 10, 2020 Ektoras PouliasisArticle

A team of gravitational wave researchers led by the ARC Center of Excellence for Gravitational Wave Discovery (OzGrav) report that when two black holes collide and merge, the remnant black hole “chirps” not once, but multiple times, emitting gravitational waves—intense Read More …

Three scientists share Nobel prize in physics for work on black holes!

October 6, 2020 Ektoras PouliasisArticle

The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Physics 2020 with one half to Roger Penrose, University of Oxford, UK, “for the discovery that black hole formation is a robust prediction of the general Read More …

Astrophysicists Suggest New Way to Detect Stellar-Mass Black Holes!

September 29, 2020September 29, 2020 Ektoras PouliasisArticle

An analysis of archival X-ray data from NASA’s Rossi X-Ray Timing Explorer has revealed a clear separation between the characteristics of stellar-mass black holes and neutron stars, which is a consequence of the lack of the hard surface in the Read More …

#AthenaScience: High-redshift galaxy groups as seen by Athena/WFI, by Chaoli Zhan

September 24, 2020September 24, 2020 Ektoras PouliasisShort article

The first massive galaxy groups in the Universe are predicted to have formed when the Universe was less than 4 billions years old (redshift > 2). Baryonic physics, like stellar and active galactic nuclei (AGN) feedback in this very active Read More …

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#AthenaNuggets: Squeezing of Pulsar Wind Nebulae, by Diego F. Torres

January 18, 2021January 18, 2021 Ektoras PouliasisArticle

A pulsar is a highly magnetized rotating compact star (usually neutron stars but also white dwarfs) that emits beams of electromagnetic radiation out of its magnetic poles. This radiation can be observed only when a beam of emission is pointing Read More …

A fast and young magnetar found not that far from the Milky Way!

January 14, 2021January 14, 2021 Ektoras PouliasisArticle

In 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA’s Chandra X-ray Observatory help support the idea that it is also a pulsar, meaning it emits Read More …

eROSITA discovers a new Supercluster of galaxies!

January 13, 2021January 13, 2021 Ektoras PouliasisArticle

Using data from the eROSITA X-ray telescope aboard the Spektrum-Roentgen-Gamma (SRG) observatory, astronomers have detected a previously unknown supercluster of galaxies. The newly found structure consists of eight galaxy clusters. A supercluster is a large group of smaller galaxy clusters Read More …

China launches gamma ray–hunting satellites to trace sources of gravitational waves!

January 8, 2021January 8, 2021 Ektoras PouliasisArticle

China has successfully launched a space telescope to study some of the most energetic events in the Universe. Lifting off in December 10th 2020 from the Xichang Satellite Launch Center, the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM, also Read More …

Black Hole’s Dust Ring May Be Casting Shadows From Heart of a Galaxy!

January 5, 2021January 5, 2021 Ektoras PouliasisArticle

Some of the most stunning views of our sky occur at sunset, when sunlight pierces the clouds, creating a mixture of bright and dark rays formed by the clouds’ shadows and the beams of light scattered by the atmosphere. Astronomers Read More …

Astronomers Observe a Bright Relativistic Jet from distant Blazar!

December 27, 2020December 27, 2020 Ektoras PouliasisArticle

A blazar is an active galactic nucleus (AGN) with a relativistic jet (a jet composed of ionized matter traveling at nearly the speed of light) directed very nearly towards the observer. Relativistic beaming of electromagnetic radiation from the jet makes Read More …

The longest intergalactic filament so far has found and it is 50 million-light-years long!

December 22, 2020December 22, 2020 Ektoras PouliasisArticle

Extraordinarily long threads of hot gas known as intergalactic filaments connect and surround galaxies and galaxy clusters throughout the cosmos — and scientists just discovered the longest one yet. The intergalactic filaments make up a cosmic web that stretches across Read More …

#AthenaNuggets 48: Mapping the Surroundings of Supermassive Black Holes, by Stefano Bianchi

December 17, 2020December 17, 2020 Ektoras PouliasisArticle

#AthenaNuggets 48 deals with Supermassive Black Holes (SMBHs) present in Active Galactic Nucleus (AGN). Its X-ray emission is a unique feature and enables to pierce the inner regions close to the SMBHs. Supermassive black holes are ubiquitous in the center Read More …

eROSITA finds large-scale bubbles in the halo of the Milky Way!

December 12, 2020December 12, 2020 Ektoras PouliasisArticle

The first all-sky survey performed by the eROSITA X-ray telescope on-board the Spektrum-Roentgen-Gamma (SRG) observatory has revealed a large hourglass-shaped structure in the Milky Way. In particular, astronomers have spotted a pair of enormous bubbles of plasma extending above and Read More …

The origin of galactic winds under the cosmic microscope!

November 30, 2020November 30, 2020 Ektoras PouliasisArticle

By studying a sample of distant galaxies, whose light comes to us from an era when the Universe was only three billion years old, a team of researchers led by Giustina Vietri of the National Institute of Astrophysics has followed Read More …

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Are you ready to explore the X-ray Universe?

Welcome to CLAXSON!

(Classification of X-ray Sources for Novices)

CLAXSON is a platform that trains you to identify new objects observed in the X-ray sky with the European Space Agency X-ray telescope XMM-Newton. Be the first to find new supermassive black holes, stars, galaxies and other exotic objects in observations taken over the last 20 years, and help astronomers unravel the mysteries of the X-ray sky.

Recent Posts

  • #AthenaNuggets: Squeezing of Pulsar Wind Nebulae, by Diego F. Torres
  • A fast and young magnetar found not that far from the Milky Way!
  • eROSITA discovers a new Supercluster of galaxies!
  • China launches gamma ray–hunting satellites to trace sources of gravitational waves!
  • Black Hole’s Dust Ring May Be Casting Shadows From Heart of a Galaxy!

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  • National Observatory of Athens hosted a pre-event to Researchers’ Night 2017
    September 25, 2017
  • Researchers’ Night 2017: Friday 29 September
    September 25, 2017

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