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Latest Gravitational lensing Stories

Dark Matter Evidence From Galaxy Cluster Abell 1689
2013-09-13 03:56:51

[ Watch the Video: Pan Across Galaxy Cluster Abell 1689 ] redOrbit Staff & Wire Reports - Your Universe Online Astronomers studying a new image of the massive galaxy cluster Abell 1689 have revealed the largest known population of globular clusters to date, NASA reported on Thursday. In a study published earlier this week in the online edition of The Astrophysical Journal, Karla Alamo-Martinez of the Center for Radio Astronomy and Astrophysics of the National Autonomous...

Astronomers Discover New Way To Map Out Quasars
2013-07-01 12:24:07

Lee Rannals for redOrbit.com - Your Universe Online Astronomers said at a Royal Astronomical Society Meeting in St Andrews, Scotland on Monday that they have found a new way to map out quasars. Quasars are energetic and luminous central regions found in distant galaxies. When a star passes too close to a giant black hole, it is shredded by the gravitational field, producing a flare-up in the brightness of an otherwise normal looking galaxy. Astronomers observed this effect and found...

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...

Space Invaders Photo Bomb Hubble Telescope Pictures Of Abell 68
2013-03-05 20:45:02

Lee Rannals for redOrbit.com — Your Universe Online A 1970s classic video game character has photo-bombed a Hubble Space Telescope picture of the Abell 68 galaxy cluster. The alien from the computer game Space Invaders has shown up in an image of Abell 68, thanks to a little technique known as “gravitational lensing.” Albert Einstein's general theory of relativity helped scientists amplify the light that comes from very distant galaxies. Some images taken by the...

space-102912-002
2012-10-29 13:11:49

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using simulations were able to catch the Large Magellanic Cloud (LMC) in the act of stealing stars away from its neighbor, the Small Magellanic Cloud (SMC). The team was trying to look for massive compact halo objects (MACHOs) in order to find out if they could be a major component of dark matter. In order for MACHOs to make up dark matter, they must be so faint that they can't be directly detected. When studying the...

Researchers Make Celestial Observation, Despite Astronomical Odds
2012-06-27 05:19:07

Lee Rannals for redOrbit.com Astronomers were able to beat the odds by observing gravitational lensing taking place at 10 billion light-years away from Earth. Gravitational lensing is the bending of light from a distant galaxy, and it has never been observed behind a cluster at this range before. The giant arc is the stretched shape of a more distant galaxy whose light is distorted by the cluster's powerful gravity. Astronomers reported in the July 10 issue of The Astrophysical...

Astronomers Find Cosmic Lenses With Feeding Black Holes
2012-03-16 02:50:20

In space, it sometimes happens that two galaxies are aligned in just the right way that the closer galaxy distorts and magnifies the appearance of the one behind it. For astronomers, finding these alignments is like coming across giant, cosmic magnifying glasses. Now, a team of astronomers, including Daniel Stern from NASA's Jet Propulsion Laboratory in Pasadena, Calif., has found several rare examples of this phenomenon, called gravitational lensing, in which the foreground galaxy hosts...

Chandra Helps To Capture Elusive Abell 383
2012-03-15 07:51:24

Two teams of astronomers have used data from NASA's Chandra X-ray Observatory and other telescopes to map the distribution of dark matter in a galaxy cluster known as Abell 383, which is located about 2.3 billion light years from Earth. Not only were the researchers able to find where the dark matter lies in the two dimensions across the sky, they were also able to determine how the dark matter is distributed along the line of sight. Dark matter is invisible material that does not emit or...


Latest Gravitational lensing Reference Libraries

67_d2968798d508f86b18fbbe3396553cd4
2010-09-13 16:46:47

The cluster CL0024+17, located in Pisces, is a galaxy cluster that is allowing astronomers to probe the distribution of dark matter in space. Dark matter does not reflect light and therefore cannot be seen. It is only detectable by the way its gravity affects the lights around it. Using gravitational lensing astronomers observe the distorted light around the dark matter and are able to tell where it is located within a cluster. A dark matter ring found near the cluster's center, by...

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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snash
  • To talk saucily.
  • Insolent, opprobrious language; impertinent abuse.
This word is Scots in origin and probably imitative.