The jhk photometric system
Basic Reference
Bahng J. 1969, MNRAS 143, 73
Abstract
The results of intermediate band photometry of late-type stars in the infra-red
indicate that the continuous radiation of these stars deviates noticeably from
that of black bodies. An emission peak near 1.6 mu was observed in agreement
with other observations. It is suggested that the prominence of the 1.6 mu peak
is a result of combination of H-and H2-on the one hand and H2O on the other as
sources of continuous opacities. In G and K stars, this feature is primarily
caused by H- and H2-. In the M stars it is predominantly caused by H2O, but the
contribution of H- and H2- tends to enhance this feature over other peaks that
are also caused by H2O.
Content
Access to the data and references
Asiago Database on Photometric System (ADPS)
Indices and Parameters
j-h, h-k
Filters
- j
- Peak wavelength : 12100 Å ; Width : 770 Å
- h
- Peak wavelength : 15900 Å ; Width : 860 Å
- k
- Peak wavelength : 21500 Å ; Width : 980 Å
detector
1 x 1 mm lead sulfide (PbS) photo-conductor
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commentsto epaunzen@physics.muni.cz
epaunzen@physics.muni.cz
Last update: 21 May 1996