Verlag: Dordrecht et al., Kluwer,, 1986
Anbieter: Buch & Cafe Antiquarius, Bonn, NRW, Deutschland
Verbandsmitglied: GIAQ
Erstausgabe
Gr.-8°, original hardcover. Zustand: UNSPECIFIED. 1. ed. XIX, 506 p. Stamp on title and preliminary page, otherwise fine copy. Sprache: Englisch Gewicht in Gramm: 0.
Verlag: Springer Netherlands, 2011
ISBN 10: 9401086087 ISBN 13: 9789401086080
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: NEW. Druck auf Anfrage Neuware - Printed after ordering - The first helium star was discovered in 1942, the first scientific meeting on the subject, however, took place in 1985. The meeting was hence long overdue for, in the meantime, a substantial amount of material had been accumulated by a rather small, but active scientific community. Hence, it appeared necessary to review the field in order to define the subject, assess its present status and discuss future developments. Hydrogen deficiency is a widespread phenomenon, occurring in a large variety of stellar and nonstellar objects. It can be readily detected in B stars as these exhibit both hydrogen and helium lines, if the elements are present in appreciable amounts. It becomes less manifest in cool stars, where the temperature is too low to excite helium and where one has to devise indirect methods for proving hydrogen deficiency. Clearly, it was not possible to discuss the whole complex of hydrogen deficiency, i.e. in both stars and diffuse matter, but rather to concentrate on the issue of helium stars.