A Simple Method of Correcting Magnitudes for the Errors Introduced by Atmospheric Refraction

• Autorzy: Kruszewski A. , Semeniuk I.
• Języki publikacji: EN

Abstrakty

EN

We show that the errors due to atmospheric refraction are present in the magnitudes determined with the Difference Images Analysis method. In case of single, unblended stars the size of the effect agrees with the theoretical prediction. But when the blending is strong, what is quite common in a dense field, then the effect of atmospheric refraction can be strongly amplified to the extent that some cases of apparently variable stars with largest amplitudes of variations are solely due to refraction. We present a simple method of correcting for this kind of errors.

Słowa kluczowe

EN

techniques: photometric; methods: data analysis

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2003
• Tom: Vol. 56, No. 3
• Strony: 241--248
• Opis fizyczny: Bibliogr. 7 poz., wykr.

Twórcy

autor

Kruszewski A.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Semeniuk I.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

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