The Magnetism in Massive Stars (MiMeS) project is a statistical survey to answer the big questions related to magnetism in hot, massive stars. So far they have observed 166 stars, 14 of which host strong, ordered magnetic fields.
Smoothed Particle Hydrodynamics (SPH) is one of the most commonly used techniques for simulating astrophysical fluids. This particular paper focuses on a regime of gas dynamics that is often neglected in astronomy: subsonic turbulence. Just as the air in the upper atmosphere exhibits random motions that can buffet an airplane cabin, the gas in interstellar space also exhibits random, turbulent motions.
Messier 87 (M87) is a giant elliptical galaxy that is best known for its spectacular, 5000-ly-long jet. In this paper, the authors develop models of M87 based on general relativistic numerical simulations and make predictions for the future direct observations of the black hole event horizon that may be possible.
Several weeks ago, the OPERA experiment announced that they had measured neutrinos travelling faster than the speed of light. The neutrinos, which traveled from CERN to the Gran Sasso Laboratory, arrived at the detector 60 nanoseconds earlier than light (with statistical errors of 6.9 ns and systematic errors of 7.4 ns).
This paper describes a new diagnostic that separates galaxies from AGN at much higher redshifts than the traditional BPT diagram.
Spitzer chugs away in ‘warm’ mode to lend new results to a very mysterious “super earth” orbiting close to its host star.