Astrophysics is a branch of astronomy that deals with the physics of the universe as well as the physical properties of celestial objects like galaxies, stars, interstellar space and their interactions. Applications are theoretical astrophysics and observatory astronomy which mainly focuses on magnetohydrodynamics, cosmology, stellar dynamics and evolution and astroparticle physics.
The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.
Last date updated on June, 2014