This book presents the first comprehensive exploration of the state of this well studied and thus unsolved mystery of the value of the Hubble constant. Chapters covering data, systematics, independent methodologies, and theoretical explanations are authored by distinguished subject-matter experts. Tailored for scientists in the field or adjacent fields, this book provides a resource of insights and also an in-depth background sufficient for motivating future study.

Key Features:

Introduction: Written by the Nobel Laureate Adam Riess.

Measurement Techniques: Gain a profound understanding of the leading Hubble constant measurement techniques, from parallax and masers to supernovae and cosmic chronometers, dissected by leading authorities on each.

Systematic Errors: A deep dive into the complexities of data. Experts scrutinize potential sources of systematics that may contribute to the observed disagreements, offering a nuanced view of the challenges in Hubble constant determinations.

Theoretical Explanations and Progress: A review of the theoretical explanations, some that are still standing, and some that have been ruled out; all of which have led to scientific progress toward the truth.

A Comprehensive Take: This book covers every key and influential aspect to the dilemma of the Hubble tension to date and has gathered world-leading voices on each respective topic.

Covers measurements and solutions as well as analysis of the disagreements Provides a comprehensive review of the H0 tension problem Summarizes recent problems and discussions related to the Hubble constant

Autorentext
Eleonora Di Valentino

Eleonora Di Valentino received her PhD in Physics at the University of Rome 'La Sapienza', Italy. She is currently a Royal Society Dorothy Hodgkin Research Fellow at the School of Mathematics and Statistics, the University of Sheffield, the UK.

"I have built my reputation in cosmology by comparing a range of cosmological datasets to flag tensions, and by combining these datasets to search for novel physics that might explain the tensions. This work benefits from the role I have played within big collaborations, and my leadership and coordination of the Cosmology Intertwined group of SNOWMASS (200+ people), that produced 4 published Letters of Interests and one published White paper, after many zoom meetings and telecons and an online workshop. I am also the leader of the review of the Hubble tension solutions published in March 2021 in CQG, now counting more than 690 citations."

Dillon Brout

Dillion Brout received his PhD from the Department of Phyisics and Astronomy, the University of Pennsylvania, the USA. He is currently a NASA Einstein Fellow, Harvard Smithsonian CfA, the USA.

Inhalt

Intro measurements.- Measurements (and systematics).- Complications with measurement.- Intro solutions.- Theoretical Proposed Solutions.- Complications with theoretical solutions.