by Erika Nesvold | Mar 7, 2013 | Daily Paper Summaries
Previous authors have claimed that the black hole at the center of NGC 1365 is spinning extremely rapidly. But these claims are based on certain assumptions about the dominance of relativistic effects on the spectrum of NGC 1365. Risaliti et al., dig deeper into the spectral data of this X-ray source and use simulations to determine whether the signatures we see are caused by a rapidly-spinning black hole, or just cloudy (galactic) weather.
by Elizabeth Lovegrove | Mar 6, 2013 | Daily Paper Summaries
The authors discuss the possibility that the strangely-shaped supernova remnant W49B was created by a core-collapse supernova that formed strong bipolar jets instead of a spherical shockwave.
by Joseph O'Rourke | Mar 3, 2013 | Daily Paper Summaries
A pair of Colombian scientists has made the first attempt to figure out the meteoroid that exploded over Russia last month.
by Elisa Chisari | Mar 2, 2013 | Daily Paper Summaries
The quest for identifying the dark matter particle is well underway. Today, we discuss the work of the ANTARES collaboration, which is using a neutrino telescope to search for signals of dark matter annihilation in the Sun.
by Susanna Kohler | Mar 1, 2013 | Daily Paper Summaries
I’m going to go ahead and give away the punchline: the answer to this post’s title is, “If your source is within 8 degrees of the Moon, quite probably.” — at least according to this paper’s authors. Read on to find out why!
by Chris Faesi | Feb 28, 2013 | Daily Paper Summaries
Hubble observations of a nearby galaxy show evidence for a universal initial mass function.