Ultracool Dwarfs

Name: Ultracool Dwarfs
Brand: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG
SKU: 9783642626821
Price: 551.58 RON
Availability: InStock

New Spectral Types L and T

Autor: Hugh R. A. Jones, Iain A. Steele

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Legare: Carte broșată

Editura: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG

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Once you have looked at the night sky on a moonless night it is not hard to realise why so much of o...

Informații despre carte

Autor

Hugh R. A. Jones, Iain A. Steele

Limbă

engleză

Legare

Carte - Carte broșată

Publicat

2012

Pagini

197

EAN

9783642626821

ISBN

3642626823

Enbook ID

07134735

Editura

Springer-Verlag Berlin and Heidelberg GmbH & Co. KG

Greutate

326

Dimensiuni

155 x 235 x 12

Descriere completă

Once you have looked at the night sky on a moonless night it is not hard to realise why so much of our science and religion has its roots in the stars. Yet it took until 1850 to realise that fainter stars were not necessarily further away, nor the brighter ones closer. In fact within the magnitude range observable to the naked eye it is probable that the brighter star is in fact further away. Even today the measurement of stellar distances is relatively difficult and is gener ally only done using dedicated telescopes. In the early years of the 20th century Hertzsprung and Russell developed a powerful classification diagram which al lows stars to be distinguished using a plot of their colour versus magnitude. The construction of this diagram involved the use of spectroscopy which has become the cornerstone of modern astronomy. As telescopes become more powerful, de tectors more sensitive and more physics is added to astrophysics, astronomical spectroscopy becomes a more powerful tool. The concern of this book is the spectral classification of stars. With a single spectrum of a star it is possible to uniquely classify an object and find its place on the Hertzsprung-Russell diagram. This spectrum is thus equivalent to having the colour and the magnitude of the object which can in turn be related to mass and other quantities.

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Ultracool Dwarfs

New Spectral Types L and T

Informații despre carte

Descriere completă

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