Encyclopedia of Physical Science and Technology, Volume 2Academic Press, 1992 - Physical sciences |
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Page 524
... disk , it heats up because of collisions with rapidly revolving matter and radi- ates most of its energy away . If the disk is opti- cally thick , this radiation will appear at the sur- face of the accretion disk as a local blackbody ...
... disk , it heats up because of collisions with rapidly revolving matter and radi- ates most of its energy away . If the disk is opti- cally thick , this radiation will appear at the sur- face of the accretion disk as a local blackbody ...
Page 525
... disk and can be observed as a power law distribution of flux with distance from the central star , which translates to a power law in frequency . In other words , the disk looks to an outside observer as if it is a nonther- mal spectrum ...
... disk and can be observed as a power law distribution of flux with distance from the central star , which translates to a power law in frequency . In other words , the disk looks to an outside observer as if it is a nonther- mal spectrum ...
Page 526
... disk . One fundamental feature of accretion disks in close binaries is that they are unstable over a wide range of temperatures and mass accretion rates . The theory of time - dependent accretion disks is still under development ...
... disk . One fundamental feature of accretion disks in close binaries is that they are unstable over a wide range of temperatures and mass accretion rates . The theory of time - dependent accretion disks is still under development ...
Contents
Guide to Using the Encyclopedia ix Atomic Physics | 339 |
Approximations and Expansions 1 Atomic Spectrometry | 357 |
Archaeological Geology 31 Atomic Spectroscopy | 381 |
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