HT Camelopardalis: the simplest intermediate polar spin pulse
HT Camelopardalis: the simplest intermediate polar spin pulse
The intermediate polar HT Cam is unusual in that it shows no evidence for dense absorption in its spectrum. We analyse an XMM-Newton observation of this star, which confirms the absence of absorption and shows that the X-ray spin-pulse is energy independent. The modulation arises solely from occultation effects and …