Kosmik Mathematics Volume 2 Pdf

The universe goes through several phase transitions during its formative stages. Cosmic reionisation is the last of them, where ultraviolet and X-ray radiation escape from the first generations of galaxies heating and ionising their surroundings and subsequently the entire intergalactic medium. There is strong observational evidence that cosmic reionisation ended approximately one billion years after the Big Bang, but there are still uncertainties that will be clarified with upcoming optical, infrared, and radio facilities in the next decade. This article gives an introduction to the theoretical and observational aspects of cosmic reionisation and discusses their role in our understanding of early galaxy formation and cosmology.

Acknowledgments

Many throughout my academic career have contributed to my understanding of the first stars, first galaxies, radiation transport, and reionisation, but I want to give special thanks to Tom Abel, Marcelo Alvarez, Renyue Cen, Andrea Ferrara, Andrei Mesinger, Michael Norman, Brian O'Shea, John Regan, Britton Smith, and Matthew Turk.

Disclosure statement

No potential conflict of interest was reported by the author.

Additional information

Notes on contributors

John H. Wise

John H. Wise is the Dunn Family Associate Professor in the School of Physics and Center for Relativistic Astrophysics at the Georgia Institute of Technology. He uses numerical simulations to study the formation and evolution of galaxies and their black holes. He is one of the lead developers of the community-driven, open-source astrophysics code Enzo (enzo-project.org). He received his B.S. in Physics from the Georgia Tech in 2001. He then studied at Stanford University, where he received his Ph.D. in Physics in 2007. He went on to work at NASA's Goddard Space Flight Center as a NASA Postdoctoral Fellow. Then in 2009, he was awarded the Hubble Fellowship which he took to Princeton University before arriving at Georgia Tech in 2011, coming back home after 10 years roaming the nation.