Friday, May 17, 2013

Orion's hidden fiery ribbon

May 15, 2013 ? This dramatic new image of cosmic clouds in the constellation of Orion reveals what seems to be a fiery ribbon in the sky. This orange glow represents faint light coming from grains of cold interstellar dust, at wavelengths too long for human eyes to see. It was observed by the ESO-operated Atacama Pathfinder Experiment (APEX) in Chile.

Clouds of gas and interstellar dust are the raw materials from which stars are made. But these tiny dust grains block our view of what lies within and behind the clouds ? at least at visible wavelengths ? making it difficult to observe the processes of star formation.

This is why astronomers need to use instruments that are able to see at other wavelengths of light. At submillimetre wavelengths, rather than blocking light, the dust grains shine due to their temperatures of a few tens of degrees above absolute zero [1]. The APEX telescope with its submillimetre-wavelength camera LABOCA, located at an altitude of 5000 metres above sea level on the Chajnantor Plateau in the Chilean Andes, is the ideal tool for this kind of observation.

This spectacular new picture shows just a part of a bigger complex called the Orion Molecular Cloud, in the constellation of Orion (The Hunter). A rich melting pot of bright nebulae, hot young stars and cold dust clouds, this region is hundreds of light-years across and located about 1350 light-years from us. The submillimetre-wavelength glow arising from the cold dust clouds is?seen in orange in this image and is overlaid on a view of the region taken in the more familiar visible light.

The large bright cloud in the upper right of the image is the well-known Orion Nebula, also called Messier 42. It is readily visible to the naked eye as the slightly fuzzy middle ?star? in the sword of Orion. The Orion Nebula is the brightest part of a huge stellar nursery where new stars are being born, and is the closest site of massive star formation to Earth.

The dust clouds form beautiful filaments, sheets, and bubbles as a result of processes including gravitational collapse and the effects of stellar winds. These winds are streams of gas ejected from the atmospheres of stars, which are powerful enough to shape the surrounding clouds into the convoluted forms seen here.

Astronomers have used these and other data from APEX along with images from ESA?s Herschel Space Observatory, to search the region of Orion for protostars ? an early stage of star formation. They have so far been able to identify 15 objects that appeared much brighter at longer wavelengths than at shorter wavelengths. These newly discovered rare objects are probably among the youngest protostars ever found, bringing astronomers closer to witnessing the moment when a star begins to form.

[1] Hotter objects give off most of their radiation at shorter wavelengths and cooler ones at longer wavelengths. As an example very hot stars (surface temperatures around 20 000 degrees Kelvin) look blue and cooler ones (surface temperatures of around 3000 degrees Kelvin) look red. And a cloud of dust with a temperature of only ten degrees Kelvin has its peak of emission at a much longer wavelength ? around 0.3 millimetres ? in the part of the spectrum where APEX is very sensitive

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_science/~3/_bmUkWu_xQA/130515085205.htm

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Thursday, May 16, 2013

Warner Bros. elevates three executives in TV unit revamp

May 15 (Reuters) - Post positions for the 138th running of the Preakness Stakes, to be run at Pimlico on Saturday (Post Position, Horse, Jockey, Trainer, Odds) 1. Orb, Joel Rosario, Shug McGaughey, even 2. Goldencents, Kevin Krigger, Doug O'Neill, 8-1 3. Titletown Five, Julien Leparoux, D. Wayne Lukas, 30-1 4. Departing, Brian Hernandez, Al Stall, 6-1 5. Mylute, Rosie Napravnik, Tom Amoss, 5-1 6. Oxbow, Gary Stevens, D. Wayne Lukas, 15-1 7. Will Take Charge, Mike Smith, D. Wayne Lukas, 12-1 8. Govenor Charlie, Martin Garcia, Bob Baffert, 12-1 9. ...

Source: http://news.yahoo.com/warner-bros-elevates-three-executives-tv-unit-revamp-185333303.html

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Wednesday, May 15, 2013

Syrian Internet down for 2nd time in 2 weeks

BEIRUT (AP) ? Syrian residents and a U.S. Internet monitoring company say Syria is experiencing a nationwide Internet outage. It is the second such blackout in two weeks.

The U.S.-based Renesys Corp. says Syria went offline Wednesday morning at 10:00 a.m. local time.

Syrian government websites, including the SANA state news agency, appeared to be down as well. But SANA reported on its twitter account a technical problem. It said maintenance units were working to restore the Internet as soon as possible. It did not elaborate.

Syrian authorities have cut phone and Internet service in select areas in the past to disrupt rebel communications when regime forces were conducting major operations.

Such widespread outages, however, have been rare. The reason for the May 7 outage is still unclear.

Source: http://news.yahoo.com/syrian-internet-down-2nd-time-2-weeks-103840350.html

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Backlash Whiplash

U.S. Supreme Court justice Ruth Bader Ginsburg speaks to delegates at the American Bar Association (ABA) House of Delegates. Ruth Bader Ginsburg has suggested that the court's sweeping decision in Roe v. Wade hindered more widespread acceptance of abortion rights. Could the same thing happen with gay marriage?

Photo by Justin Sullivan/Getty Images

Supreme Court Justice Ruth Bader Ginsburg doubled down over the weekend on her ongoing criticism of Roe v. Wade. Ginsburg?s concern is about backlash: She says that by issuing the ruling that legalized abortion across the country in 1973, a group of ?unelected old men? stopped the momentum that was building among the states. "That was my concern, that the court had given opponents of access to abortion a target to aim at relentlessly," she said at the University of Chicago Law School. "My criticism of Roe is that it seemed to have stopped the momentum that was on the side of change."

Ginsburg posed an alternative: ?judicial restraint.? As she put it, ?The court can put its stamp of approval on the side of change and let that change develop in the political process." This may have implications for the court?s twin cases this term about gay marriage: There will be no majority on the court for a sweeping ?50 state solution??a ruling that would strike down state bans on gay marriage, given the constitution?s promise of equality, and allow same-sex couples to marry everywhere in the country. Justice Anthony Kennedy sent a similar signal in March when he answered a question about whether the court decides too many issues that could be left for the legislature. "I think it's a serious problem,? Kennedy said. ?A democracy should not be dependent for its major decisions on what nine unelected people from a narrow legal background have to say."

I?ve also been anxious about a sweeping ruling on gay marriage, purely because of politics. Legally speaking, extending the right to marry, which is rooted in the constitution, to gay couples is clearly the right call. At oral arguments in March, opponents could barely muster a coherent counter argument. But there?s still a question of timing: When should the court answer the ultimate question? When the Supreme Court purports to settle for the whole country a huge social issue that divides the public?especially one in which religion is an undercurrent, and support varies by region?unintended consequences can follow. If the justices take it slow, by contrast, a controversial ruling can become less so. Meanwhile, advocates have time to make change through the democratic process?in ballot initiatives or laws passed by the legislature. That makes a shift like allowing gay marriage feel close to the ground rather than imposed from on high. And wondrously, that?s very much happening, with Minnesota becoming the sixth state to legalize gay marriage just since the November 2012 election, bringing the national total to 12 plus the District of Columbia.

That?s what Ginsburg and Kennedy seem to be getting behind. At the same time, their scornful references to unelected judges sound off-key. Do they really see their own court as a bunch of misguided meddlers? And surely they don?t mean that judges should never step in to protect the basic rights of a minority when the legislature or the voters fail to do so? That would be at odds with plenty of decisions they?ve both signed (see Lawrence v. Texas, striking down state sodomy laws, and the rulings banning the death penalty for juveniles and the mentally impaired).

While I?m also scarred by the intractable, depressing national divide over abortion, the direct line Ginsburg draws from Roe to backlash has been vigorously challenged by Linda Greenhouse and Reva B. Siegel of Yale Law School (where I am a fellow). As they lay out here, in their book Before Roe v. Wade, the political battle over abortion predates Roe. It?s true that on the eve of Roe, polls showed increasing support for leaving the abortion decision to a woman and her doctor (support for that premise actually polled higher among Republicans than Democrats). And yet, the ?momentum? Ginsburg claims for legalizing abortion had stalled. A minority of avid opponents had stopped state bills from passing. ?It was, in other words, decidedly not the case that abortion reform was on an inevitable march forward if only the Supreme Court had stayed its hand,? Greenhouse and Siegel write.

Still, Roe has come down to us as the Supreme Court?s boomerang. Whatever the historical nuances, on abortion, the country remains miserably riven and stuck. Last week?s Gallup poll is not the trend line gay marriage proponents want to see, either. And so far, happily, it?s not. Support for same-sex marriage has been ticking upward, building to 53 percent late last November, according to Gallup.

One way to read these polls: Don?t mess with progress. The court shouldn?t swoop in to decide gay marriage for all the states. But as Salon?s Irin Carmon has pointed out, the fear of backlash shouldn?t be an excuse for the court to be gun-shy, either. The best reading of Ginsburg?s notion of the court putting a ?stamp of approval on the side of change,? is that she and her colleagues should stand up for gay rights by striking down the Defense of Marriage Act and also California?s ban on same-sex marriage. Leave the other states alone until the next case comes around. It won?t take long. The country?s movement toward accepting gay marriage is zipping along. The indefatigable Nate Silver predicts that in 2016, gay marriage will poll below 50 percent in only 17 states, and by 2020, the number will be just six. Somewhere in there, the problem of backlash will solve itself.

This is the story of the midcentury legal battles over interracial marriage. In 1948, the California Supreme Court struck down the state?s ban as a violation of equal protection. The Supreme Court stayed out of the fray, however, for two more decades. Should it have moved earlier? Yale law professor William Eskridge, in his brief in the gay marriage cases, answers no. He cites the potential for backlash triggered ?by a too-early ruling.? By the time the court decided Loving v. Virginia, it had to strike down the laws of only 16 states.

Is gay marriage the exception to the cautionary rule? Given the poll numbers and the weakness of the arguments against it, how much backlash would a 50-state ruling really trigger? With a wave of Republicans recently announcing their support, I?ve wondered whether my fears are exaggerated. Maybe the country would shrug and go home to RSVP to their wedding invitations.

But when you break down Silver?s polls by region, they reveal entrenched opposition in the South, and to a lesser degree in the West. I still worry that too much, too soon from the Supreme Court could become fodder for another wave of states? rights anger. I called NYU law professor Barry Friedman about this, because his book, The Will of the People, is all about the court?s relationship to public opinion. He brought up Furman v. Georgia, the Supreme Court?s 1972 ruling against the death penalty. Beforehand, support for the death penalty had dropped to a low of 41 percent. There was regional variation, with most executions occurring in the South. Then came Furman. The Supreme Court struck down the existing state death penalty laws, and ?opinion polls showed skyrocketing support for the penalty?more than 60 percent by 1975,? Friedman writes. The court had left the door open for states to come up with alternative death penalty statutes, and by the mid-1970s, 35 states and Congress had passed new laws.? ?It was like, ?the Supreme Court says no death penalty? Screw you, we?ll have one next week,?? Friedman says.

What?s the lesson for gay marriage? ?This one is really hard to call,? says Friedman. ?It seems safe to come out of the water, but you just never know.?

Source: http://feeds.slate.com/click.phdo?i=529e64e36f28137c5fcdd64e5990678c

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U.S. wig-wearing 'spy' arrested in Russia

May 13 (Reuters) - Leading money winners on the 2013 PGATour on Monday (U.S. unless stated): 1. Tiger Woods $5,849,600 2. Brandt Snedeker $3,388,064 3. Kevin Streelman $2,572,989 4. Billy Horschel $2,567,891 5. Matt Kuchar $2,493,387 6. Phil Mickelson $2,220,280 7. Adam Scott (Australia) $2,207,683 8. D.A. Points $2,019,702 9. Steve Stricker $1,977,140 10. Graeme McDowell $1,910,654 11. Jason Day $1,802,797 12. Webb Simpson $1,759,015 13. Dustin Johnson $1,748,907 14. Hunter Mahan $1,682,939 15. Charles Howell III $1,561,988 16. Russell Henley $1,546,638 17. Martin Laird $1,531,950 18. ...

Source: http://news.yahoo.com/blogs/lookout/cia-spy-russia-wig-detained-fogle-144500405.html

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Tuesday, May 14, 2013

Amazon Coins available for Kindle Fire, users enjoy $5 credit to get started

Amazon Coins available for Kindle Fire, users enjoy $5 credit to get started

Forget Bitcoin: Amazon's got a digital currency of its own, known as Coins, coming to the Kindle Fire right on schedule. The virtual money, which was originally announced back in February, is now ready to go for anyone who frequents the Amazon Appstore or uses a Kindle Fire to purchase apps and games. Bezos & Co. is willing to throw in a bit of an investment to get you started, as the online retailer will hook up existing and new users with 500 free coins -- a value of $5. Need more than that? Head to the More Coverage link below to grab as many coins as fits your fancy. A 10 percent discount awaits those who purchase in bulk, which adds a tad more incentive to go all-in on the new service.

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Source: http://www.engadget.com/2013/05/13/amazon-coins/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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New method of finding planets scores its first discovery

May 13, 2013 ? Detecting alien worlds presents a significant challenge since they are small, faint, and close to their stars. The two most prolific techniques for finding exoplanets are radial velocity (looking for wobbling stars) and transits (looking for dimming stars). A team at Tel Aviv University and the Harvard-Smithsonian Center for Astrophysics (CfA) has just discovered an exoplanet using a new method that relies on Einstein's special theory of relativity.

"We are looking for very subtle effects. We needed high quality measurements of stellar brightnesses, accurate to a few parts per million," said team member David Latham of the CfA.

"This was only possible because of the exquisite data NASA is collecting with the Kepler spacecraft," added lead author Simchon Faigler of Tel Aviv University, Israel.

Although Kepler was designed to find transiting planets, this planet was not identified using the transit method. Instead, it was discovered using a technique first proposed by Avi Loeb of the CfA and his colleague Scott Gaudi (now at Ohio State University) in 2003. (Coincidentally, they developed their theory while visiting the Institute for Advanced Study in Princeton, where Einstein once worked.)

The new method looks for three small effects that occur simultaneously as a planet orbits the star. Einstein's "beaming" effect causes the star to brighten as it moves toward us, tugged by the planet, and dim as it moves away. The brightening results from photons "piling up" in energy, as well as light getting focused in the direction of the star's motion due to relativistic effects.

"This is the first time that this aspect of Einstein's theory of relativity has been used to discover a planet," said co-author Tsevi Mazeh of Tel Aviv University.

The team also looked for signs that the star was stretched into a football shape by gravitational tides from the orbiting planet. The star would appear brighter when we observe the "football" from the side, due to more visible surface area, and fainter when viewed end-on. The third small effect was due to starlight reflected by the planet itself.

Once the new planet was identified, it was confirmed by Latham using radial velocity observations gathered by the TRES spectrograph at Whipple Observatory in Arizona, and by Lev Tal-Or (Tel Aviv University) using the SOPHIE spectrograph at the Haute-Provence Observatory in France. A closer look at the Kepler data also showed that the planet transits its star, providing additional confirmation.

"Einstein's planet," formally known as Kepler-76b, is a "hot Jupiter" that orbits its star every 1.5 days. Its diameter is about 25 percent larger than Jupiter and it weighs twice as much. It orbits a type F star located about 2,000 light-years from Earth in the constellation Cygnus.

The planet is tidally locked to its star, always showing the same face to it, just as the Moon is tidally locked to Earth. As a result, Kepler-76b broils at a temperature of about 3,600 degrees Fahrenheit.

Interestingly, the team found strong evidence that the planet has extremely fast jet-stream winds that carry the heat around it. As a result, the hottest point on Kepler-76b isn't the substellar point ("high noon") but a location offset by about 10,000 miles. This effect has only been observed once before, on HD 189733b, and only in infrared light with the Spitzer Space Telescope. This is the first time optical observations have shown evidence of alien jet stream winds at work.

Although the new method can't find Earth-sized worlds using current technology, it offers astronomers a unique discovery opportunity. Unlike radial velocity searches, it doesn't require high-precision spectra. Unlike transits, it doesn't require a precise alignment of planet and star as seen from Earth.

"Each planet-hunting technique has its strengths and weaknesses. And each novel technique we add to the arsenal allows us to probe planets in new regimes," said CfA's Avi Loeb.

Kepler-76b was identified by the BEER algorithm, whose acronym stands for relativistic BEaming, Ellipsoidal, and Reflection/emission modulations. BEER was developed by Professor Tsevi Mazeh and his student, Simchon Faigler, at Tel Aviv University, Israel.

The paper announcing this discovery has been accepted for publication in The Astrophysical Journal and is available online.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_science/~3/vTx3jEIxD04/130513152840.htm

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