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Stars are mostly found in binary and multiple systems, with at least 50% of all solar-like stars having companions; this fraction approaches 100% for the most massive stars. A large proportion of these systems interact and alter the structure and evolution of their components, leading to exotic objects such as Algol variables, blue stragglers and other chemically peculiar stars, but also to phenomena such as non-spherical planetary nebulae, supernovae and gamma-ray bursts. While it is understood that binaries play a critical role in the Initial Mass Function, the interactions among binary systems significantly affect the dynamical evolution of stellar clusters and galaxies. This interdisciplinary volume presents results from state-of-the-art models and observations aimed at studying the impact of binaries on stellar evolution in resolved and unresolved populations. Serving as a bridge between observational and theoretical astronomy, it is a comprehensive review for researchers and advanced students of astrophysics.

Stars --- Double stars. --- Evolution.

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Extragalactic Novae: A historical perspective takes the reader on a journey chronicling the study of a class of eruptive variable stars known as "Novae Stella", Latin for "New Stars". These mysterious transient objects, now referred to simply as novae, have been recognized since antiquity, suddenly appearing in the night sky before slowly fading back into obscurity. The book begins with a brief introduction to the early observations, including an overview of the role that novae played in the birth of extragalactic astronomy, and concludes with a discussion of how nova observations over the past century have contributed to our knowledge of close binary star populations in nearby galaxies. Along the way, the history of our understanding of the nova phenomena, in the Milky Way and beyond, is unveiled. In particular, the author describes how the enigmatic nova eruptions were finally realized to be the result of thermonuclear runaways on the surfaces of accreting white dwarf stars, how a controversial correlation between a nova's peak luminosity and its rate of decline (the MMRD relation) has been used in extragalactic distance determinations, and how recent observations have bolstered the case that novae may form a significant channel for the production of Type Ia supernovae. These topics, and more, are recounted by an observer who has spent the past 35 years studying these fascinating objects.

Stars, New. --- Galaxies & stars. --- SCIENCE / Astronomy.

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Was er ooit een begin of is het heelal er altijd geweest? Kunnen we terugreizen in de tijd? Is er buitenaards leven? 
Stephen Hawking (1942-2018) was een Brits kosmoloog, natuur- en wiskundige, die geniale theorieën uitwerkte over zwarte gaten en het raadsel van de oerknal. Hij kreeg daarbij extra respect, omdat hij door de ziekte ALS verlamd was en via een spraakcomputer communiceerde. 
In dit boekje legt Rüdiger Vaas Hawkings fascinerende ideeën op toegankelijke wijze en met veel humor uit. Komische illustraties helpen om de geniale gedachten van de onderzoeker te begrijpen en maken dit boek tot een opwindende reis door Hawkings universum!

Didactics of physics --- Stars --- zwaartekracht --- heelal

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In CONSTELLATIONS, award-winning astronomy writer Govert Schilling takes us on an unprecedented visual tour of all 88 constellations in our night sky.Much more than just a stargazer's guide, CONSTELLATIONS is complete history of astronomy as told by Schilling through the lens of each constellation. The book is organized alphabetically by constellation. Profiles of each constellation include basic information such as size, visibility, and number of stars, as well as information on the discovery and naming of the constellation and associated lore.Beyond details about the constellation itself is information about every astronomical event that took place or discovery made in the vicinity of the constellation. In the constellation of Cygnus (the Swan) we encounter the location of the first confirmed black hole. A stop at Gemini (the Twins) is a chance to say hello to the dwarf planet Pluto, and in Orion (the hunter) we find the location of the first identified gamma-ray burst.Stunning star maps throughout the book by acclaimed star mapmaker Wil Tirion show us the exact location of every constellation, the details of its structure, as well as its surrounding astronomical neighbors.

Constellations. --- Astronomy --- Stars. --- Constellations --- Étoiles --- Astronomie.

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Astronomers study the oldest observable stars in the universe in much the same way archaeologists study ancient artifacts on Earth. Anna Frebel takes readers into the far-flung depths of space and time to provide a gripping firsthand account of the cutting-edge science of stellar archaeology. Weaving the latest findings in astronomy with her own compelling insights as one of the world's leading researchers in the field, she explains how sections of the night sky are "excavated" in the hunt for these extremely rare, 13-billion-year-old relic stars and how this astonishing quest is revealing tantalizing new details about the origins and evolution of the cosmos. Along the way, Frebel recounts her own stories of discovery, offering an insider's perspective on this exciting frontier of science.

Early stars. --- Stars --- Stars --- Galaxies --- Cosmochronology. --- Étoiles des premiers types. --- Étoiles --- Étoiles --- Galaxies --- Cosmochronologie. --- Voie lactée. --- Age. --- Formation. --- Formation. --- Age. --- Formation. --- Formation. --- Milky Way.