{"product_id":"reionization-signatures-in-quasar-absorption-spectra-von-simona-gallerani","title":"Reionization Signatures in Quasar Absorption Spectra","description":"\u003cp\u003eMoving backwards in time, the first observable of the Universe is the Cosmic Microwave Background, signature of the recombination process occurred at z~1100. Limited by the sensitivity of current telescopes, we are now able to detect objects up to z~8. Nowadays, we are thus dealing with a lack of observational data in the range 8\u003cz cosmic epochs called ages after the recombination process universe is almost completely homogeneous and neutral. gravitational instability allows tiny fluctuations in primordial density field to grow pre- existing dark matter halo potential wells eventually form first bound objects. it only at z that gas finally able cool stars. photons from luminous sources ionized surrounding neutral medium. once individual regions started overlapping global ionization thermal state of intergalactic medium changed drastically. which marks transition an highly structured one we presently observe reionization\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783843394291\"\u003e\u003ch3\u003eExploring the Dark Ages of the Universe\u003c\/h3\u003e\u003c\/div\u003e\u003c\/z\u003e\u003c\/p\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783843394291","offer_id":39470008402013,"sku":"9783843394291","price":68.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/cff95e52-68e6-42d0-9bcc-fcfe9a13ed21.jpg?v=1772780762","url":"https:\/\/shop.autorenwelt.de\/en\/products\/reionization-signatures-in-quasar-absorption-spectra-von-simona-gallerani","provider":"Autorenwelt Shop","version":"1.0","type":"link"}