{"product_id":"the-nature-and-origin-of-hercules-x-1s-light-curve-dips-von-ciprian-d-igna-und-denis-a-leahy","title":"The Nature and Origin of Hercules X-1's Light-curve Dips","description":"\u003cp\u003eHZ Her\/Her X-1 is one of the most popular low-mass X-ray binary star systems, which consists of a neutron star (Her X-1) and a post-main-sequence star (HZ Her). Her X-1 is one of the first two founding members of the accretion-powered X-ray pulsars class. Due to its large luminosity and low interstellar absorption Her X-1 remains one of the most studied pulsars. The system is characterized by a great wealth of phenomena including 1.24 s regular X-ray pulsations, 1.7-day orbital period eclipses, a superorbital X-ray intensity cycle of ~35 days, and a large number of highly variable X-ray absorption events coined light-curve dips by Riccardo Giacconi, one of the 2002 Physics Nobel Prize laureates and founder of X-ray Astronomy. Unlike the periodic X-ray flux modulations, the light-curve dips are not well understood despite more than 30 years of intense research work. We present here the largest and most recent record of Her X-1¿s light-curve dips, and propose a theoretical model that reproduces the timing of any of the observed light-curve dips. The model is based on a single dip production mechanism and explains most dip properties, including the famous marching dip effect.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783659148866\"\u003e\u003ch3\u003eA continuing debate\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783659148866","offer_id":39489774682205,"sku":"9783659148866","price":79.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/fae53ae6-2f32-4256-b7e1-97cf5edfa885.jpg?v=1772864436","url":"https:\/\/shop.autorenwelt.de\/products\/the-nature-and-origin-of-hercules-x-1s-light-curve-dips-von-ciprian-d-igna-und-denis-a-leahy","provider":"Autorenwelt Shop","version":"1.0","type":"link"}