On the Necessity to Standardize Photometric Parameters of the Wet Photometers

Details On the Necessity to Standardize Photometric Parameters of the Wet Photometers On the Necessity to Standardize Photometric Parameters of the Wet Photometers

Mar 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998balta...7..341k&link_type=abstract

Baltic Astronomy, v.7, p.341-348.

Astronomy and Astrophysics

Astronomy

1

Instrumentation: Photometers

Scientific paper

The temperature dependence of spectral sensitivity of the Hamamatsu photomultipliers R 647P and R 1463P is investigated in the temperature interval --5 (--15) deg to +25 deg for the wavelength range between 280 and 820 (850) nm. The influence of the temperature variations on spectral sensitivity of PMTs and transmittance of the {UBV} filters to the accuracy of the WET and classical UBV photometry is estimated. It is argued that the temperature effects should be taken into account in WET observations as in the case of precise UBV photometry.

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