Standard stars and calibration for JHKLM photometry

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Photometry, Calibrating, Infrared Astronomy, Reference Stars, Colorimetry, Spectral Bands, Stellar Magnitude

Scientific paper

We define a JHKLM photometric system, which is, to the observational accuracy, identical to the Northern "Arizona" JKL photometry. A calibration of the photometry is given, tied to the calibration of the visual (V) absolute calibration of et al. (1977) and Hayes and Latham (1975). The calibration, which is based on observed results only, seems to indicate that Hayes (1979) underestimates the IR fluxes by approximately 7%. The relative calibration agrees with the results of Hayes to within the observational accuracy, which is 4%.

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