When you're reaching for the stars, nothing can hold you back. Star Calloway is fourteen years old, and she's the most famous pop star in the world. Her album has topped the charts, her video is all the rage, and she's about to start her world tour. There's only one thing that keeps her life from being perfect: Star's parents and baby brother have been missing for two years, and no one knows what happened to them. Still, Star knows her family would want her to be happy, and performing means everything to her. But with so many mysterious things going wrong in preparation for the tour, could the show be over before it begins?
"We describe a general formalism for computing scattering rates of weak probes in macroscopic systems, based on a density matrix formalism. We show that weak probes in general scatter off fluctuations in the medium. In the limit that the neutrino wavelength is much larger than the lengthscale of the fluctuations, we show that the scattering rate can be calculated from knowledge of the equation of state of the medium through which the neutrinos travel. Using radial profiles of a post-bounce, shocked supernova core and a well-established equation of state for nuclear matter we compute these scattering rates for various times in the vicinity of the shock. We find that, behind the shock, these correlative effects can enhance neutrino scattering rates by factors of 8 compared to standard calculations which ignore interactions in the nuclear medium. These results may have implications for how efficiently neutrinos can restart a stalled shock, although firm conclusions regarding the ultimate effects of such an enhancement await full hydrodynamic simulations, which are not performed here." --
"We describe a general formalism for computing scattering rates of weak probes in macroscopic systems, based on a density matrix formalism. We show that weak probes in general scatter off fluctuations in the medium.
A program is described for development of an automated supernova search based upon complete remote computer control of a telescope and vidicon digital imaging system. (GHT).
A program is described for development of an automated supernova search based upon complete remote computer control of a telescope and vidicon digital imaging system. (GHT).
The streets of Arcania are overrun with crime, deteriorating as a madman named Fortune makes himself at home. He shows no mercy, striking down anyone in his path - including Nova Benson's little sister. Devastated, Nova vows to seek justice for her family, but aside from her freak strength and impenetrable skin, how is she supposed to stop a monster like Fortune? Cole Warner wants to help people. Entrusted to keep his family's secret, he's also frustrated at having to hide his gift. He knows he could do more to help in the fight against Fortune. If he could convince his sister Penelope to join him, they might even have a chance at beating him. When Cole meets Nova, he realizes his whole world is about to change. And he's going to welcome it with open arms. Falling for each other wasn't part of the plan. Then again, neither was becoming a superhero.
