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Latest Weak gravitational lensing Stories

galaxy collision
2014-08-27 06:29:04

Chuck Bednar for redOrbit.com - Your Universe Online Using a battery of observatories that included the Atacama Large Millimeter/submillimeter Array (ALMA) and the Hubble Space Telescope, an international team of astronomers has obtained the best view to date of a collision between two galaxies that took place when the universe was just a fraction of its current age. According to ESA, the team also utilized a gravitational lens to magnify galaxy HATLAS J142935.3-002836, revealing...

Galaxy cluster MCS J0416.1–2403
2014-07-26 03:30:45

ESA/Hubble Information Center Stunning new observations from Frontier Fields Astronomers using the NASA/ESA Hubble Space Telescope have mapped the mass within a galaxy cluster more precisely than ever before. Created using observations from Hubble's Frontier Fields observing program, the map shows the amount and distribution of mass within MCS J0416.1–2403, a massive galaxy cluster found to be 160 trillion times the mass of the Sun. The detail in this mass map was made possible thanks...

Testing Einstein's Theory Of Relativity Through Cosmic Microwave Measurements
2014-05-14 08:27:34

April Flowers for redOrbit.com - Your Universe Online What do you get when you combine polarized radiation with Einstein's theory of general relativity? According to a group of astrophysicists at UC San Diego, you just might get more accurate estimates for the mass of ghostly subatomic particles known as neutrinos. The study, published in Physical Review Letters, measures the distortions in polarized radiation from the early universe and demonstrates that these ancient microwaves can...

Monster Of A Galaxy Cluster - El Gordo Lives Up To Its Nickname
2014-04-04 07:03:29

April Flowers for redOrbit.com - Your Universe Online | Source Material Provided by NASA El Gordo is Spanish for "the fat one," and the nickname of the largest galaxy known galaxy cluster in the distant universe, ACT-CLJ0102-4915. A new study from NASA's Hubble Space Telescope reveals that the galaxy cluster, which is 9.7 billion light-years from Earth, definitely lives up to its nickname. According to a NASA report, a team of astronomers measured how much the cluster's gravity warps...

south pole telescope
2013-12-15 04:00:20

Brett Smith for redOrbit.com - Your Universe Online Based on observations from the South Pole Telescope, a team of international scientists has found subtle patterns in the cosmic microwave background called B-mode polarizations, according to a report in Physical Review Letters. “The detection of B-mode polarization by South Pole Telescope is a major milestone, a technical achievement that indicates exciting physics to come,” said study author John Carlstrom, a deputy director of...

Non-Astronomy Scientists May Help Answer Cosmology Conundrum
2013-11-28 06:41:07

April Flowers for redOrbit.com - Your Universe Online Measuring the invisible and intangible is a challenge for sure, but scientists have made inroads on one front: the study of dark matter and dark energy, two of the most mysterious substances in the cosmos. Although dark matter is intermixed with normal matter, it gives off no light, making it impossible to see. Dark energy presents even more challenges, yet researchers believe it works against gravity to pull our universe apart at...

Astronomers Use Gravitational Lensing To Weigh Most Distant Galaxy
2013-10-17 14:57:54

Lee Rannals for redOrbit.com - Your Universe Online Using a gravitational lensing technique, astronomers were able to weigh one of the most distant galaxies in the universe. Gravitational lensing is a technique used by astronomers that was first predicted by Albert Einstein's theory of relativity. As light from a very distant object moves through the universe, it can essentially be intensified by another object that is closer to Earth, reviving the light and making it possible for...

Light From Infant Universe
2013-10-01 13:00:07

[ Watch the Video: Big Bang Signal Picked Up By Astronomers ] Lee Rannals for redOrbit.com - Your Universe Online Astronomers report that they have detected a subtle signal from the Big Bang for the first time, giving a glimpse into the first moments of the Universe. The Cosmic Microwave Background (CMB) signal the astronomers detected was from when the universe was just 380,000 years old. The signal was found 13.8 billion years after bouncing around different areas of the Universe...

Distant Type Ia Supernova Magnified Through Gravitational Lensing
2013-04-23 18:32:44

Lee Rannals for redOrbit.com — Your Universe Online Researchers at the Kavli IPMU, led by Robert Quimby, have discovered the first ever Type Ia supernova (SNIa), extraordinarily magnified by a gravitational lens. Scientists wrote in the Astrophysics Journal Letters they discovered the supernova, PS1-10afx, with the Panoramic Survey Telescope & Rapid Response System 1 (Pan-STARRS1). The supernova exploded over 9 billion years ago, making it a much further object than most...

Gravitational Lensing In The Unusual "Magatama" Galaxy
2013-04-01 09:37:32

Subaru Telescope In a course of studying young galaxies at a distance of 11.6 billion light years from Earth, a team of astronomers led by Professor Yoshiaki Taniguchi (Ehime University) noticed a strangely shaped galaxy that looks like a "magatama", an ancient, comma-shaped Japanese amulet made of stone. Subsequent research revealed that the magatama galaxy was actually an overlapping system of two young galaxies lying in an extremely close line of sight--an exceedingly rare occurrence...


Latest Weak gravitational lensing Reference Libraries

45_ea0b4f3c063ef1aeec4ef6fed79a5d9d
2010-09-07 17:31:13

The Bullet Cluster is made up of two colliding clusters galaxies. According to a 2006 study, the Bullet Cluster also shows the best evidence for the existence of Dark Matter. From observations of galaxy cluster collisions it has been found that many show displacement between their center of visible matter and their gravitational potential. Each component, stars, gas, and dark matter, within a cluster pair behaves differently during a collision allowing for each to be studied separately....

6_fec4ca0e97baf4ce0833c41b1e6be5e62
2004-10-19 04:45:41

Gravitational Lens -- A gravitational lens is formed when the light from a very distant, bright object (such as a quasar) is "bent" around a massive object (such as a massive galaxy) between the bright object and the viewer. The process is known as gravitational lensing, and was one of the predictions made by Einstein's general relativity. Description In a gravitational lens, the gravity from the massive object bends light as a lens might. As a result, the path of the light from a...

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Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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