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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. view more
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 astronomers in the
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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.
Date Time
Seeing Quadruple
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.
Wed December 23, 2020 - Southeast Edition #27
Eric Olson - CEG CONTRIBUTING EDITOR
Lawson Lamar (L), vice president of J. McKinnon Development, and Reece Brimmer, president of Peninsula Technologies (owned by J. McKinnon).
The task of building Florida s mammoth
Brightline Trains extension from West Palm Beach to Cocoa, then west to Orlando International Airport, is a Herculean one for any of the contractors on the project. The $2.7-billion enterprise encompasses 170 mi. of track that will ultimately connect Orlando with Miami.
The portion of the train line from Orlando International Airport east to the Space Coast has seen the most activity in Central Florida. Anyone traveling on the east-west SR 528/Beachline Expressway over the past year has no doubt noticed the land clearing and track installation that parallels the south side of the rural highway.
to all of us. if they do their job well, if they re able to devote sufficient time and resources to the process of organizing an election, then the lines aren t too long and there are not frustrations about getting polling places open, machines working, that enough people are not dissuaded from voting by the difficulty of trying to vote, itself, that the election outcome is affected by the difficulty of voting. then maybe the smooth running of the process of voting doesn t make a huge difference in the outcome in states when the result is a blowout, but in 2008, as you heard the tea party guy say, the election in north carolina was decided by a teeny, teeny, teeny, tiny margin of 14,000 votes. with the margin that slim, and remember, the polls right now in north carolina are straight up, a straight-up tie, with a margin that tight, anything that makes it harder to vote in north carolina could change the outcome in north carolina and therefore change the outcome of the presidential race