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Cross Correlation Studies of Stellar Variability using two Telescopes

Published online by Cambridge University Press:  25 April 2016

P.J. Edwards ,
R.B. Hurst  and
G. Christie
P.J. Edwards
Affiliation:
Physics Department, University of Otago
R.B. Hurst
Affiliation:
Physics Department, University of Otago
G. Christie
Affiliation:
Physics Department, University of Otago
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Extract

The study of short time scale phenomena of astronomical interest is often handicapped by the presence of wide band noise. In particular, in the study of the optical variability of stars, such noise arises from atmospheric scintillation, extinction variations, sky radiance variations and photon statistics. For example if in order to resolve rapid stellar variability we reduce the length (T) of the time intervals over which a photometric record is integrated and sampled, we find that the fractional noise fluctuations increase, eventually obscuring any intrinsic variability.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 6 , October 1975 , pp. 349 - 351
Copyright
Copyright © Astronomical Society of Australia 1975

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References

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