OXFORD, England, April 1 -- Monthly Notices of the Royal Astronomical Society, a journal that features astronomy and astrophysics, published research articles, including the following topics, in its Vol. 512, No. 2 edition:

ARTICLES:

* A two-zone model as origin of hard TeV spectrum in extreme BL lacs Avalanches of magnetic flux rope in the state of self-organized criticality

* Early dynamical evolution of rotating star clusters in a tidal field