Neutrinos and planets, black holes, oh my
Some supermassive primordial stars could explode completely without leaving a supermassive black hole, sterile neutrinos still elude detection, an experimental ultrahot “perfect fluid” suggests secrets about the Big Bang, an astronomer received funding to train computers to be surrogate astronomers, Claire Max takes the helm of the UC Observatories, the most brilliant and massive pulsar was just discovered, and a team mapped the blast-furnace atmosphere of a “hot Jupiter” 260 light-years away. Check out seven recent news summaries in the UC-HiPACC computational astronomy press room
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Coding magic, giving back, and dreamforcing
Kids create magic spells to learn coding, grad students work at the Large Hadron Collider, undergrads do physics research with grad student mentors, the public delights in digital arts, a national lab gives back to the community, and researchers realize the force of dreams—read more of the latest in the UC-HiPACC education and public outreach press room
September 2014 AstroShort—Separated at Birth: Finding our Sun’s Long-Lost Siblings?
Any stars born of the same giant molecular cloud always show the same “DNA fingerprint” of chemical abundances of trace elements. But most groups of stars drift apart, eventually even ending up on opposite sides of a galaxy—as likely happened with our Sun. Thus, astronomers have long wondered whether it might be possible to tell if two stars now on opposite sides of the galaxy were born billions of years ago from the same cloud. New simulations explain why, and offer hope: might it be possible to find our own Sun’s long-lost siblings?
Read the AstroShort Separated at Birth: Finding our Sun’s Long-Lost Siblings?
This UC-HiPACC website is a central news source about all computational science at all 10 UC campuses and three affiliated DOE national laboratories (Lawrence Berkeley, Lawrence Livermore, and Los Alamos). Check out our three press rooms. For the latest in astrophysics, see Computational Astronomy Press Room
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Why Sibling Stars Look Alike: Early, Fast Mixing in Star Birth Clouds
August 31, 2014 — Early, fast, turbulent mixing of gas within giant molecular clouds—the birthplaces of stars—means all stars formed from a single cloud bear the same unique chemical “tag” or “DNA fingerprint,” writes computational astronomers at University of California, Santa Cruz in the journal Nature, published online on August 31, 2014. Could such chemical tags help astronomers identify our own Sun’s long-lost sibling stars? Read the UC-HiPACC press release at http://hipacc.ucsc.edu/PressRelease/sibling-stars.html and watch the movies!
Two 11-second movies shows a computational simulation of a collision of two converging streams of interstellar gas, leading to collapse and formation of a star cluster at the center.