Abstract
Observations in the invisible regions of the spectrum have become more common in astronomy during the last 20 years. After radio-astronomy, astronomy of ultraviolet, X- and γ-rays appeared. X- and γ-astronomy are still only beginning to develop, even now they give important information which cannot be obtained with former methods. High-energy quanta are produced with high-energy electrons. Therefore X-rays are the emission of high-speed particles which reveal themselves weakly in the other part of the spectrum.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1968 I.A.U.
About this chapter
Cite this chapter
Pikelner, S.B. (1968). Introduction. In: Perek, L. (eds) Highlights of Astronomy. International Astronomical Union / Union Astronomique Internationale, vol 1. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3417-3_13
Download citation
DOI: https://doi.org/10.1007/978-94-010-3417-3_13
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-3419-7
Online ISBN: 978-94-010-3417-3
eBook Packages: Springer Book Archive