Showing posts with label Web Features. Show all posts
Showing posts with label Web Features. Show all posts

Thursday, October 10, 2013

Lonely planet in star turn all of its own, say astronomers

http://www.smh.com.au/technology/sci-tech/lonely-planet-in-star-turn-all-of-its-own-say-astronomers-20131010-2vbce.html

October 10, 2013 - Sydney Morning Herald
Astronomers have found a lonely planet outside the solar system, floating in space and not orbiting a star.
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Other telescopes in Hawaii showed the planet has similar properties to those of gas giants orbiting around young stars, but PSO J318.5-22 lacks a host star.
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Lonely, young planet drifting in space without a star

http://www.cnn.com/2013/10/10/tech/space-new-planet/index.html

October 10, 2013 - CNN
The solitary life of this newly discovered planet, with the catchy name PSO J318.5-22, has astronomers excited.
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Subsequent infrared observations using other telescopes in Hawaii showed it was no brown dwarf, but rather a young, low-mass planet.
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A strange lonely planet found without a star

http://www.astronomy.com/news/2013/10/a-strange-lonely-planet-found-without-a-star

October 10, 2013 - Astronomy.com
An international team of astronomers has discovered an exotic young planet that is not orbiting a star. This free-floating planet, PSO J318.5-22, is just 80 light-years away from Earth and has a mass only six times that of Jupiter. The planet formed a mere 12 million years ago — a newborn in planet lifetimes.
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The team followed up the PS1 discovery with multiple telescopes on the summit of Mauna Kea on the island of Hawaii. Infrared spectra taken with the NASA Infrared Telescope Facility and the Gemini North Telescope showed that PSO J318.5-22 was not a brown dwarf, based on signatures in its infrared light that are best explained by it being young and low-mass.
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Lonely planet found wandering a mere 80 light years from Earth

http://www.theguardian.com/science/2013/oct/10/lonely-planet-pso-80-light-years-from-earth

October 10, 2013 - The Guardian
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The lonely planet's heat signature, located to the Capricornus constellation and belonging to a collection of young stars called the Beta Pictoris moving group, was spotted over the course of two years of observations by scientists using the Pan-STARRS 1 telescope in Hawaii. Confirmation of the lonely planet was made with measurements made by the Gemini observatory in July. The planet's details and description will be published in the journal Astrophysical Journal Letters and have already been placed online at the arXiv website.
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Astronomers say they've spotted lonesome planet without a sun

http://www.nbcnews.com/science/astronomers-say-theyve-spotted-lonesome-planet-without-sun-8C11366309

October 9, 2013 - NBC News
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They followed up with observations using the Gemini North Telescope and the NASA Infrared Telescope Facility telescopes on the summit of Hawaii's Mauna Kea, and concluded that its infrared signature was more consistent with a young planetary-mass object. The science team also monitored the object for two years using the Canada-France-Hawaii Telescope, to determine its direction of motion and its distance from Earth. That's how they figured out it was 80 light-years away.
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Wednesday, August 7, 2013

Explosion illuminates invisible galaxy in the Dark Ages

http://www.astronomy.com/~/link.aspx?_id=ccef7e51-3bea-4fa6-afdf-04d901839eab

August 6, 2013 - Astronomy.com
More than 12 billion years ago, a star exploded, ripping itself apart and blasting its remains outward in twin jets at nearly the speed of light. At its death, it glowed so brightly that it outshone its entire galaxy by a million times. This brilliant flash traveled across space for 12.7 billion years to a planet that hadn’t even existed at the time of the explosion — Earth. By analyzing this light, astronomers learned about a galaxy that was otherwise too small, faint, and far away for even the Hubble Space Telescope to see.
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Gamma Ray Burst Illuminates Galactic Chemistry In The Early Universe

http://www.redorbit.com/news/space/1112917496/life-and-death-in-the-earliest-phases-of-cosmic-time-080713/

August 7, 2013 - RedOrbit.com
A star exploded more than 12 billion years ago, ripping itself apart and blasting debris outward in twin jets at nearly the speed of light. The star shone so brightly at its death that it outshone its entire galaxy by a million times. This flash of light traveled across space for 12.7 billion years to a planet that hadn’t even existed at the time of the explosion – our Earth. Astronomers have analyzed this light to learn about a galaxy that was otherwise too small, faint and far away for even the Hubble Space Telescope to see.
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GRB Lights Up Ancient Hidden Galaxy

http://www.universetoday.com/103982/grb-lights-up-ancient-hidden-galaxy/


August 7, 2013 - UniverseToday
Once upon a time, more than 12.7 billion years ago, a star was poised on the edge of extinction. It made its home in a galaxy too small, too faint and too far away to even be spotted by the Hubble Space Telescope. Not that it would matter, because this star was going to end its life before the Earth formed. As it blew itself apart, it expelled its materials in twin jets which ripped through space at close to the speed of light – yet the light of its death throes outshone its parent galaxy by a million times.
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Monday, January 7, 2013

'All-Clear' Asteroid Will Miss Earth in 2040

http://tinyurl.com/ab8y6zt

January 5, 2013 - Astrobiology Magazine
Using the Gemini North telescope on Mauna Kea, Hawaii, a team of astronomers from the University of Hawaii’s Institute for Astronomy (IfA) have confirmed that the chance of asteroid 2011 AG5 impacting Earth in 2040 is no longer a significant risk -- prompting a collective sigh-of-relief. Previously, scientists estimated that the risk of this 140-meter-diameter (about the length of two American football fields) asteroid colliding with the Earth was as high as one in 500.
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Monday, November 5, 2012

Astronomers set up telescope timeshare

http://www.nature.com/news/astronomers-set-up-telescope-timeshare-1.11725

November 2, 2012 - Nature News
Following a landmark agreement to swap telescope time, Japanese astronomers will gain access to the southern skies, while astronomers with the Gemini consortium will get to use specialized instruments on Japan’s premier telescope.
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Thursday, September 13, 2012

Missing supernova mystery solved

http://www.abc.net.au/science/articles/2012/09/07/3584619.htm

September 7, 2012 - ABC Science
A large number of dying stars called core-collapse supernovae are not detected because they are obscured by galactic dust, say astronomers.
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Ryder and colleagues used the Gemini North telescope in Hawaii to peer through the obscuring dust, looking for the missing supernovae at infrared wavelengths, which penetrates dust better than optical light.
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Wednesday, July 13, 2011

July 4: Scientists Discover Oldest Black Hole Using Telescopes on Mauna Kea ShareThis Scientists have discovered one of the oldest objects in the un

July 4, 2011 - Hawaii Public Radio
Scientists have discovered one of the oldest objects in the universe.

It’s what they call a black hole. They found it using two telescopes on Mauna Kea.

The light detected in Hawaii left the black hole 13 billion years ago, says Gemini Observatory scientist Paul Hirst.

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Friday, June 24, 2011

Astronomers witness star being consumed

June 16, 2011 - West Hawaii Today
Astronomers were able to watch a black hole consume a star, thanks to Mauna Kea's Gemini North telescope.

NASA's Swift telescope first detected light from the incident, as a beam of light crossed 3.8 billion light years of space. A team of astronomers using Gemini North then rushed to make more observations.

"It is rare for stars to get very close to the black holes in the centers of galaxies, but when they do, they will always come off second best," University of Leicester Professor Nial Tanvir said.

The scientists' research was published in Thursday's edition of the journal Science.

Black holes consuming stars is probably fairly common, Gemini spokesman Peter Michaud said.

"What's interesting is we're actually watching a star being consumed," he said. "(Scientists) can see brightness concentrations where whole clumps of materials are being consumed."
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Star eaten by black hole

June 16, 2011 - AstronomyNow
The moment a star strayed too close to a hungry black hole was captured by the Swift satellite, which was blasted in the high energy death cry of the star as it was ripped apart.
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The gamma-ray flare likely began a few days before the Swift satellite picked it up, and may take up to a year to fade away. Once Swift had made the detection, further observations were made with the Hubble Space Telescope, Chandra X-ray Observatory, the Gemini and Keck telescopes in Hawaii, and the United Kingdom Infrared Telescope.

Going out with a bang not a whimper

June 17, 2011 - BBC News
Ever wondered what it might be like to get sucked into a black hole?

Working with images from the Hubble Space Telescope, Nasa's Chandra X-ray Observatory, the Swift satellite and the Gemini and Keck ground-based telescopes, scientists at Warwick University have enjoyed a ringside seat as the black hole at the centre of a distant galaxy has ripped apart and swallowed a star that strayed too close.
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Thursday, February 10, 2011

Jupiter sinks titanic asteroid

February 10, 2011 - Astronomy Now
Jupiter's impressive 2009 scar, which was first spotted by amateur astronomer Anthony Wesley, was likely created by an asteroid the size of the Titanic cruise liner, say scientists who studied the aftermath of the collision.
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A dark black marking was observed visually on the giant planet on 19 July 2009 by Anthony Wesley, who alerted professional astronomers around the world. Follow-up observations from NASA's Infrared Telescope Facility in Mauna Kea, the Gemini North and South telescopes, ESO's Very Large Telescope and even the Hubble Space Telescope in the week after, enabled astronomers to observe the warm temperatures and chemical reactions caused by the impact.
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