Chile – Page 3 – Shamskm: A site to exchange knowledge and solutions

‘Nuisance’ Data Lead to Surprising Star-Birth Discovery

By Guest PostMarch 15, 2013Sciencealma, Antarctica, atacama, atacama desert, baby picture, Chile, cosmic microwave background, early universe, earth, electromagnetic spectrum, history, joaquin vieira, john carlstrom, large millimeter array, northern hemisphere, nuisance data, population, radio galaxies, sky, south pole telescope, star birth discovery, star forming galaxies, sub millimeter wavelengths, universe, university of chicago

When a batch of bright cosmic objects first appeared in maps in 2008 made with data from the South Pole Telescope, astronomers at the University of Chicago’s Kavli Institute for Cosmological Physics regarded it only as an unavoidable nuisance.

The light sources interfered with efforts to measure more precisely the cosmic microwave background—the afterglow of the big bang. But the astronomers soon realized that they had made a rare find in South Pole Telescope’s large survey of the sky. The spectra of some of the bright objects, which is the rainbow of light they emit, were inconsistent with what astronomers expected from the well-known population of radio galaxies. (more…)

NASA’s Galex Reveals the Largest-Known Spiral Galaxy

By Guest PostJanuary 11, 2013Scienceall sky survey, baerbel koribalski, barred spiral galaxy, biggest stellar system, brazil, california, catholic university, cathy horellou, Chile, claudia mendes, constellation pavo, de, dimitri gadotti, disk galaxy, duilia de mello, dwarf galaxy, eli dwek, european southern observatory, fernanda urrutia viscarra, fossil record, galactic encounter, galaxy evolution explorer, galex, goddard, gravitational interaction, greenbelt, ic 4970, institute of technology, largest, milky way galaxy, mission, NASA, ngc 6872, oliveira, onsala space observatory, pasadena, rafael eufrasio, sao paulo, space flight center, spiral arms, star formation, stellar population, Sweden, two micron, united states, university, very large telescope

PASADENA, Calif. — The spectacular barred spiral galaxy NGC 6872 has ranked among the biggest stellar systems for decades. Now a team of astronomers from the United States, Chile and Brazil has crowned it the largest known spiral, based on archival data from NASA’s Galaxy Evolution Explorer (GALEX) mission, which has since been loaned to the California Institute of Technology in Pasadena.

Measuring tip-to-tip across its two outsized spiral arms, NGC 6872 spans more than 522,000 light-years, making it more than five times the size of our Milky Way galaxy. (more…)

Argentina Ranks First in Worldwide Desktop Social Networking Engagement at Nearly 10 Hours per Visitor Each Month

By Guest PostDecember 20, 2012Technologyalejandro fosk, analysis, Argentina, ask, brazil, Chile, Comscore, Facebook, hi5, latin america, leading social network, level of engagement, linkedIn, market, Mexico, peru, slideshare, social networking activity, social networking markets, tumblr

Analysis of Social Networking in Latin America Shows LinkedIn Grabbing #2 Position with35 Million Monthly Visitors

Santiago, Chile, December 20, 2012 – comScore, a leader in measuring the digital world, today released an analysis of social networking activity in Latin America, which found that Argentina and Brazil led as the most engaged social networking markets worldwide with visitors spending an average of near 10 hours on social networking sites in November 2012. The study also found that LinkedIn, which has grown strongly in the past year due to both organic growth and the acquisition of Slideshare.net, is now the second most visited social network in Latin America. (more…)

Search for Life Suggests Solar Systems More Habitable than Ours

By Guest PostDecember 7, 2012Sciencecayman unterborn, Chile, dataset, dynamic, earth, european southern observatory, Galaxy, geologically active, habitable, habitable zone, heat source, jennifer johnson, microbial form, Milky Way, ohio state university, planet, plate tectonics, potassium, radioactive decay, radioactive element, san francisco, search for life, solar systems, solar twin, subsurface heat, terrestrial planet, thorium, uranium, wendy panero

SAN FRANCISCO — Scattered around the Milky Way are stars that resemble our own sun—but a new study is finding that any planets orbiting those stars may very well be hotter and more dynamic than Earth.

That’s because the interiors of any terrestrial planets in these systems are likely warmer than Earth—up to 25 percent warmer, which would make them more geologically active and more likely to retain enough liquid water to support life, at least in its microbial form.

The preliminary finding comes from geologists and astronomers at Ohio State University who have teamed up to search for alien life in a new way. (more…)

NSF’s South Pole Telescope Discovers a Galaxy Cluster Creating Stars at a Record Pace

By Guest PostAugust 16, 2012Scienceantarctic program, Antarctica, big bang, black hole, blanco 4 meter, bradford benson, chandra, Chile, cmb, cosmic microwave background, earth, energy, galaxy cluster, hubble fellow, john carlstrom, light year, magellan telescope, michael mcdonald, NASA, national science foundation, nsf, phoenix cluster, radiation, radio telescope, south pole telescope, spt, spt clj2344-4243, sunyaev zeldovich, sz effect, university of chicago, xray observatory

Researchers say Phoenix Cluster activity may cause scientists to rethink how galaxies evolve

A National Science Foundation-funded radio telescope in Antarctica has found an extraordinary galaxy cluster that may force astronomers to rethink how galaxy clusters and the galaxies that inhabit them evolve.

The galaxy cluster was discovered some 5.7 billion light years from Earth by the 10-meter wide South Pole Telescope (SPT) located at NSF’s Amundsen-Scott South Pole Station in Antarctica, which is funded by NSF’s Office of Polar Programs. (more…)

First-of-its-Kind Study Reveals Surprising Ecological Effects of 2010 Chile Earthquake

By Guest PostMay 7, 2012Environment2010 chile earthquake, arroyo quemado, california, cataclysmic occurrence, central chile, Chile, coastal ecosystem, coastal zone, earthquake, ecological effects, eduardo jaramillo, fondecyt, jenny dugan, lter, magnitude, national science foundation, natural disaster, sand crabs, sandy beach, tectonically active, tsunami, ucsb

Long-forgotten coastal habitats reappeared, species unseen for years returned

The reappearance of long-forgotten habitats and the resurgence of species unseen for years may not be among the expected effects of a natural disaster.

Yet that’s exactly what researchers found in a study of the sandy beaches of south central Chile, after an 8.8-magnitude earthquake and devastating tsunami in 2010.

Their study also revealed a preview of the problems wrought by sea level rise–a major symptom of climate change. (more…)

NASA’s Spitzer Finds Galaxy with Split Personality

By Guest PostApril 27, 2012Sciencearchetypal galaxy, centaurus, Chile, constellation virgo, dimitri gadotti, earth, elliptical galaxy, ellipticals, Galaxy, galaxy evolution, globular cluster, NASA, ngc 4594, ruben sanchez janssen, sean carey, sombrero galaxy, spiral disk, spiral milky way, spitzer space telescope, split personality

PASADENA, Calif. — While some galaxies are rotund and others are slender disks like our spiral Milky Way, new observations from NASA’s Spitzer Space Telescope show that the Sombrero galaxy is both. The galaxy, which is a round elliptical galaxy with a thin disk embedded inside, is one of the first known to exhibit characteristics of the two different types. The findings will lead to a better understanding of galaxy evolution, a topic still poorly understood.

“The Sombrero is more complex than previously thought,” said Dimitri Gadotti of the European Southern Observatory in Chile and lead author of a new paper on the findings appearing in the Monthly Notices of the Royal Astronomical Society. “The only way to understand all we know about this galaxy is to think of it as two galaxies, one inside the other.” (more…)

Sailing in a Sea of Microbes

By Guest PostMarch 4, 2012Sciencealgae, Arctic, atmospheric chemistry, bacteria, biogeochemical cycles, biomass, carbon dioxide, Chile, climate, daniel stolte, easter island, Environment, food production, genome, Germany, global warming, grassroots initiative, greenhouse gas, matt sullivan, melissa duhaime, microbe, ocean water, oceans, oxygen production, pacific ocean, research vessel, saguaro cacti, sequence, tara oceans, ua, university of arizona, wolves, world of viruses, world of webs

Researchers led by Matt Sullivan at the UA are among the first to dive into the world of viruses drifting through the world’s oceans.

Surrounded by the deep blue of the Pacific Ocean stretching from horizon to horizon, a lonely dot is glinting in the sun. It is the aluminum hull of a sailboat, a 118-foot schooner with white sails billowing from two masts.

On the deck, crewmembers and scientists are milling about. Commands are flying back and forth, and soon a strange contraption consisting of tubes clustered around an array of sensors dangling from a crane is lowered into the water, until it disappears in the clear blue depths. (more…)

Tag Archives: Chile