Feedback from supernovae(SNe) and from active galactic nuclei(AGN) accom-panies the history of star formation and galaxy evolution.We present an analytic model
We adopt the tidal truncation model proposed by Negueruela and Okazaki for Be/X-ray binaries to investigate the influence of intermediate-mass black holes (IMBH
The simultaneous photometric and spectroscopic observations of the spotted G dwarf AP149 in the young open cluster α Persei are analyzed here.We reconstruct th