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Maunakea telescope helps find astronomical 'gold mines'


University of Hawaiʻi
Clockwise from left, Gemini’s Crossbow, Wolf’s Paw, Microscope Lens and Dragon’s Kite (Photo credit: R. Hurt (IPAC/Caltech)/The GraL Collaboration)
Astronomers at the W. M. Keck Observatory on Maunakea are part of a team that came across a very rare find nestled billions of light years away that could help to quantify the universe. Researchers discovered a dozen “quadruply imaged quasars,” and only 50 “quads” have been found within the past 40 years.
Quasars are extremely luminous objects powered by supermassive black holes that are feasting on material surrounding it. A quadruply imaged quasar happens when the gravity of a massive galaxy in front of it bends and magnifies the light of the quasar behind it, and splits the quasar’s single image into four. ....

Daniel Stern , University Of Hawai , Swiss Army , Propulsion Laboratory , European Space Agency Gaia , Microscope Lens , Gral Collaboration , Keck Observatory , Dragon Kite , Astrophysical Journal , European Space Agency , டேனியல் கடுமையான , பல்கலைக்கழகம் ஆஃப் ஹவாய் , சுவிஸ் இராணுவம் , ப்ரொபல்ஶந் ஆய்வகம் , நுண்ணோக்கி லென்ஸ் , கிரால் இணைந்து , கேக்க் கண்காணிப்பு , டிராகன் காத்தாடி , வானியற்பியல் இதழ் ,

Seeing quadruple


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IMAGE: Four of the newfound quadruply imaged quasars are shown here: From top left and moving clockwise, the objects are: GraL J1537-3010 or Wolf s Paw; GraL J0659+1629 or Gemini s Crossbow; GraL.
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Credit: The GraL Collaboration
With the help of machine-learning techniques, a team of astronomers has discovered a dozen quasars that have been warped by a naturally occurring cosmic lens and split into four similar images. Quasars are extremely luminous cores of distant galaxies that are powered by supermassive black holes.
Over the past four decades, astronomers had found about 50 of these quadruply imaged quasars, or quads for short, which occur when the gravity of a massive galaxy that happens to sit in front of a quasar splits its single image into four. The latest study, which spanned only a year and a half, increases the number of known quads by about 25 percent and demonstrates the power of machine learning to assist ....

United States , George Djorgovski , Daniel Stern , Propulsion Laboratory , Swiss Army , European Space Agency Gaia , National Science Foundation , Technology Telescope , Paulo Research Foundation , European Southern Observatory New Technology Telescope , European Research Council , Jet Propulsion Laboratory , Astrophysical Journal , European Space Agency , Infrared Survey Explorer , Keck Observatory , Palomar Observatory , European Southern Observatory , New Technology Telescope , Gemini South , Dragon Kite , Machines Working , Centauru Victory , Alberto Krone Martins , Augmented Intelligence , Artificial Intelligence ,

Caltech: Seeing Quadruple


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Machine-learning methods lead to discovery of rare “quadruply imaged quasars” that can help solve cosmological puzzles
With the help of machine-learning techniques, a team of astronomers has discovered a dozen quasars that have been warped by a naturally occurring cosmic “lens” and split into four similar images. Quasars are extremely luminous cores of distant galaxies that are powered by supermassive black holes.
Over the past four decades, astronomers had found about 50 of these “quadruply imaged quasars,” or quads for short, which occur when the gravity of a massive galaxy that happens to sit in front of a quasar splits its single image into four. The latest study, which spanned only a year and a half, increases the number of known quads by about 25 percent and demonstrates the power of machine learning to assist astronomers in their search for these cosmic oddities. ....

United States , George Djorgovski , Daniel Stern , Swiss Army , Propulsion Laboratory , European Southern Observatory New Technology Telescope , European Space Agency Gaia , Technology Telescope , Jet Propulsion Laboratory , Astrophysical Journal , European Space Agency , Infrared Survey Explorer , Keck Observatory , Palomar Observatory , European Southern Observatory , New Technology Telescope , Gemini South , Dragon Kite , Machines Working , Centauru Victory , Alberto Krone Martins , Augmented Intelligence , Artificial Intelligence , ஒன்றுபட்டது மாநிலங்களில் , டேனியல் கடுமையான , சுவிஸ் இராணுவம் ,