Cataclysmic variables are binary star systems where one of the stars—a white dwarf—devours its main sequence partner over time. Kepler proves yet again that it can find a lot more than just exoplanets by identifying a cataclysmic variable with a period of less than an hour.
Depending on how they scatter with nuclei, dark matter particles might affect the structure and evolution of our Sun.
The progenitors of a special type of cataclysmic variable, AM CVn, and possibly supernovae have been found.
The authors identify two distinct sequences of blue straggler stars in the globular cluster NGC 392. They hypothesize that one branch is formed via stellar mergers and the other is binary stars undergoing mass transfer. This is the second globular cluster found to possess this double sequence.
A “Super-Jupiter” recently discovered by direct imaging techniques may not be as it initially seemed. Hinkley et al. find the system to be older than expected and the Super-Jupiter to really be a brown dwarf.
The authors present the first direct evidence of a jet shaping the circumstellar envelope of a post-AGB star.
A study of Kepler data reveals a correlation between brightness fluctuations and surface gravity of stars.
The authors of today’s paper investigate the feeding habits of the elusive quiescent supermassive black hole, finding that in addition to swallowing some stars whole and constantly snacking on the winds of other stars, some black holes may also dine on giant stars slowly disrupted over tens to hundreds of orbits.
What were astronomers reading and talking about in their research last year? Check out figures from the top 12 most-cited astronomy papers from 2012 (so far) and find out what researchers were up to and why!
Pakmor et al. propose a new mechanism to make Type 1a supernova explosions from a pair of white dwarfs.