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AHEAD2020

  • Home
  • About AHEAD2020
  • Open days
    • National Observatory of Athens (Penteli)
    • National Observatory of Athens (Thissio)
  • Events
  • 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 energético (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

Category: #WhatIsAHEAD2020

#WhatIsAHEAD2020 – Active galactic Nuclei

March 17, 2022March 16, 2022 Dr. Ektoras Pouliasis#WhatIsAHEAD2020

The massive galaxies and a fraction of lower mass galaxies in the Local Universe host a super massive black hole (SMBH) in their center. They have masses between millions to 10 billions times the mass of the Sun. When matter Read More …

#WhatIsAHEAD2020 – Supernova

March 10, 2022March 10, 2022 Dr. Ektoras Pouliasis#WhatIsAHEAD2020

A supernova is a powerful and luminous stellar explosion. This transient astronomical event occurs during the last evolutionary stages of a massive star (at least five times the mass of our sun) or when a white dwarf is triggered into Read More …

#WhatIsAHEAD2020 – Neutron stars

January 20, 2022January 16, 2022 Dr. Ektoras Pouliasis#WhatIsAHEAD2020

Neutron stars are the ultra dense cores of massive stars that run out of fuel, collapse and undergo a supernova explosion. The very central region of the star – the core – collapses, crushing together every proton and electron into Read More …

#WhatIsAHEAD2020 – Black holes

January 18, 2022January 16, 2022 Dr. Ektoras Pouliasis#WhatIsAHEAD2020

The black holes are region in space-time with such a high gravitational potential thateven the light cannot escape. The gravitational field of a black hole is so strong that the escape velocity needed is greater than the speed of light. Read More …

#WhatIsAHEAD2020 – Gravitational Waves

January 14, 2022January 14, 2022 Dr. Ektoras Pouliasis#WhatIsAHEAD2020

Gravitational waves are invisible (yet incredibly fast) ripples in the otherwise tough, stiff fabric of spacetime. Gravitational waves travel at the speed of light and squeeze and stretch anything in their path as they pass by. Gravitational waves are fundamentally Read More …

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Pushing the boundaries of High-Energy Astrophysics!

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